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  • 1.
    Abate, Megersa
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Does fuel price affect trucking industry’s network characteristics?: evidence from Denmark2014Rapport (Annet vitenskapelig)
    Abstract [en]

     The 2000s were dominated by rising fuel prices and economic recession. Both had an impact on the structure of the trucking industry and how freight was moved. This paper examines how fuel prices shaped trucking industry’s network characteristics such as the average length of haul, average load, and capacity utilization. In particular, we show the effect of fuel price on average length of haul using 29 quarterly independent surveys from the Danish heavy goods vehicle (HGV) trip diary from 2004 to 2011. The results show that the average length of haul is sensitive to changes in fuel price: a DKK 1 (0.18$) increase in diesel price/liter leads to a 4 percent decrease in the average length of haul in the 2004-2007 period. This implies that firms improve transport efficiency by reducing the number of kilometers needed to transport a tonne of cargo as a short run response to fuel price increases. This result, however, is not confirmed for the years following the 2008 financial crisis. It also depends on where in the distribution of the average length of haul one looks.

  • 2.
    Abate, Megersa
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Economic effects of air transport market liberalization in Africa2016Inngår i: Transportation Research Part A: Policy and Practice, ISSN 0965-8564, E-ISSN 1879-2375, Vol. 92, s. 326-337Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Although the aviation industry is increasingly becoming important for Africa's economic development and integration, the ability of airlines to access foreign markets remains hindered by restrictive regulatory policies. Attempts have been made to fully liberalize the intra-African air transport market. Except for general assertions about the merits/demerits of liberalization, our empirical understanding of the welfare effects of such polices in Africa remains rudimentary. This study empirically measures the economic effects of air transport liberalization, mainly on two supply side variables: fare and service quality, measured as departure frequency. The empirical models evaluate how air fares and departure frequency respond to measures of openness in air services agreements, while controlling for other determinants. The results show up to 40% increase in departure frequency in routes that experienced some type of liberalization compared to those governed by restrictive bilateral air service agreements. Furthermore, there is a relatively larger increase in departure frequency in routes which experienced partial liberalization compared to fully liberalized ones. This can be explained by the diminishing marginal effect of progressive liberalization on departure frequency. While the effect of liberalization is substantial in improving service quality, there is no evidence of its fare reducing effect.

  • 3.
    Abate, Megersa
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Economic effects of air transport market liberalization in Africa2014Rapport (Annet vitenskapelig)
    Abstract [en]

    Although the aviation industry is increasingly becoming important for Africa's economic development and integration, the ability of airlines to access foreign markets remains hindered by restrictive regulatory policies. Attempts have been made to fully liberalize the intra-African air transport market. Except for general assertions about the merits/demerits of liberalization, our empirical understanding of the welfare effects of such polices in Africa remains rudimentary. This study empirically measures the economic effects of air transport liberalization, mainly on two supply side variables: fare and service quality, measured as departure frequency. The results show up to 40 % increase in departure frequency in routes that experienced some type of liberalization compared to those governed by restrictive bilateral air service agreements. While the effect of liberalization is substantial in improving service quality, there is no evidence of its fare reducing effect.

  • 4.
    Abate, Megersa
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Vierth, Inge
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    de Jong, Gerard
    University of Leeds.
    Joint econometric models of freight transport chain and shipment size choice2014Rapport (Annet vitenskapelig)
    Abstract [en]

    In freight transportation, decisions regarding the choice of transport mode (or chains of modes) and shipment size are closely linked. Building on this basic insight, in this paper we estimate and review various joint econometric models using the Swedish National Commodity Flow surveys. Robust parameter estimates from this exercise will be used to update the current deterministic Swedish national freight model system (the SAMGODS model) to a stochastic one.

  • 5.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S. Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Analysis of discrete multi-unit, common value auctions: a study of three sealed-bid mechanisms2012Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    This paper proposes a discrete bidding model for both quantities and pricing. It has a two-unit demand environment where subjects bid for contracts with an unknown redemption value, common to all bidders. Prior to bidding, the bidders receive private signals of information on the (common) value. The value and the signals are drawn from a known discrete affiliated joint distribution. The relevant task for the paper is to compare the equilibrium strategies and the seller’s revenue of three auction formats. We find that, of the three auctionformats below with two players, the discriminatory auction always gives the largest revenue to the seller; both the uniform and the Vickrey auction have zero revenue equilibrium strategies that put them further down in the revenue ranking. In equilibrium, bidders bid the same amount on both items in the discriminatory auction; a phenomenon not noted in either of the other auction formats.

  • 6.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Kostnader för störningar i infrastrukturen: metodik och fallstudier på väg och järnväg2015Rapport (Annet vitenskapelig)
    Abstract [sv]

    Studien i detta notat belyser metodiken som kan användas vid beräkningar av samhällets kostnader vid störningar i samhällets infrastruktur, framför allt väg- och järnvägstrafik. Ur ett samhällsekonomiskt perspektiv innebär störningar i infrastrukturen kostnader till följd av förseningar, utebliven produktion och kostnader för omledningar med mera. Det är av vikt att beskriva vilken belastning i form av förlorade eller förbrukade resurser som dessa störningar av olika slag innebär för samhället. Utgångspunkten för beräkningen av kostnaderna har varit genom den samhällsekonomiska kalkylen, med kalkylvärden från ASEK (Arbetsgruppen för samhällsekonomisk analysmetod inom transportsektorn); såsom åktidsvärden, förseningstidsvärden samt trängseltidsvärden. Den värdering av tid som görs i transportsektorns samhällsekonomiska kalkyler avser det marginella värdet av en inbesparad timme restid, väntetid eller bytestid för personresor och transporttid för gods.

  • 7.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Luftfartens samhällsekonomiska marginalkostnader: delstudie inom SAMKOST2014Rapport (Annet vitenskapelig)
    Abstract [sv]

    Den här rapporten är en litteraturstudie av luftfartens samhällsekonomiska marginalkostnader. Den utgör ett delprojekt till VTI:s regeringsuppdrag om att uppdatera kunskapen kring trafikens samhällsekonomiska kostnader (SAMKOST). I rapporten diskuteras vilka effekter som är externa för luftfarten, och vilka som redan är internaliserade. Det är inte helt självklart vilka effekter som bör beaktas som relevanta marginalkostnader för luftfarten. Till exempel kan både trängsel och olyckor ses som internaliserade då de redan är omhändertagna av flygledartjänsten, ett verktyg som alla flygplan måste använda sig av i svenskt luftrum enligt lag. Detsamma gäller infrastrukturen. Den stora externa effekten är flygets miljöpåverkan. Här skiljs på tre olika kategorier; bullerpåverkan, luftkvalitépåverkan och klimatpåverkan.

  • 8.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S. Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Multi-unit common value auctions: a laboratory experiment with three sealed-bid mechanisms2012Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    This study addresses a discrete common value environment with independent (one-dimensional) private signals, where the seller offers two identical units and the buyers have (flat) demand for both. Each session is conducted with2, 3 or 4 buyers. Three auction formats are used: the discriminatory, uniformand Vickrey auctions which are all subjected to a variation in the number of bidders and to repeating bid rounds on each subject. The main findings are that there are no significant differences between the uniform and the discriminatory auction in collecting revenue, while the Vickrey auction comes out as inferior. More bidders in the auction result in a greater revenue and level out the performance across the mechanisms. Demand reduction is visible in the experiment, but it is not as prominent as anticipated. Moreover, subjects come closer to equilibrium play over time. Finally, the winner’s curse is less severe than what is reported for inexperienced bidders in other studies.

  • 9.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S. Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Multi-unit common value auctions: an experimental comparison between the static and the dynamic uniform auction2012Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    It is still an open question whether the dynamic or the static format should be used in multi-unit settings, in a uniform price auction. The present study conducts an economic experiment in a common value environment, where it is found that it is more a question of whether the auctioneer wants to facilitate price discovery, and thereby lessen the otherwise pervasive overbidding, or if only the revenue is important. The experiment in the present paper provides evidence that the static format gives a significantly greater revenue than the dynamic auction, in both small and large group sizes. But a higher revenue comes at a cost; half of the auctions in the static format yield negative profits to the bidders, the winner’s curse is more severely widespread in the static auction, and only a minority of the bidders use the equilibrium bidding strategy.

  • 10.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S. Örebro universitet, Handelshögskolan vid Örebro Universitet.
    Multi-unit common value auctions: theory and experiments2012Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Research on auctions that involve more than one identical item for sale was,almost non-existing in the 90’s, but has since then been getting increasing attention. External incentives for this research have come from the US spectrum, sales, the European 3G mobile-phone auctions,  and Internet auctions. The policy relevance and the huge amount of money involved in many of them have helped the theory and experimental research advance. But in auctions where values are equal across bidders, common value auctions, that is, when the value depends on some outside parameter, equal to all bidders, the research is still embryonic.

    This thesis contributes to the topic with three studies. The first uses a Bayesian game to model a simple multi-unit common value auction, the task being to compare equilibrium strategies and the seller’s revenue from three auction formats; the discriminatory, the uniform and the Vickrey auction. The second study conducts an economic laboratory experiment on basis of the first study. The third study comprises an experiment on the multi-unit common value uniform auction and compares the dynamic and the static environments of this format.

    The most salient result in both experiments is that subjects overbid. They are victims of the winner’s curse and bid above the expected value, thus earning a negative profit. There is some learning, but most bidders continue to earn a negative profit also in later rounds. The competitive effect when participating in an auction seems to be stronger than the rationality concerns. In the first experiment, subjects in the Vickrey auction do somewhat better in small groups than subjects in the other auction types and, in the second experiment, subjects in the dynamic auction format perform much better than subjects in the static auction format; but still, they overbid.

    Due to this overbidding, the theoretical (but not the behavioral) prediction that the dynamic auction should render more revenue than the static fails inthe second experiment. Nonetheless, the higher revenue of the static auction comes at a cost; half of the auctions yield negative profits to the bidders, and the winner’s curse is more severely widespread in this format. Besides, only a minority of the bidders use the equilibrium bidding strategy.The bottom line is that the choice between the open and sealed-bid formats may be more important than the choice of price mechanism, especially in common value settings.

    Delarbeid
    1. Analysis of discrete multi-unit, common value auctions: a study of three sealed-bid mechanisms
    Åpne denne publikasjonen i ny fane eller vindu >>Analysis of discrete multi-unit, common value auctions: a study of three sealed-bid mechanisms
    2012 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    This paper proposes a discrete bidding model for both quantities and pricing. It has a two-unit demand environment where subjects bid for contracts with an unknown redemption value, common to all bidders. Prior to bidding, the bidders receive private signals of information on the (common) value. The value and the signals are drawn from a known discrete affiliated joint distribution. The relevant task for the paper is to compare the equilibrium strategies and the seller’s revenue of three auction formats. We find that, of the three auctionformats below with two players, the discriminatory auction always gives the largest revenue to the seller; both the uniform and the Vickrey auction have zero revenue equilibrium strategies that put them further down in the revenue ranking. In equilibrium, bidders bid the same amount on both items in the discriminatory auction; a phenomenon not noted in either of the other auction formats.

    Publisher
    s. 27
    Emneord
    Economics
    HSV kategori
    Forskningsprogram
    SAB, Qa Economics and finance
    Identifikatorer
    urn:nbn:se:vti:diva-5313 (URN)
    Tilgjengelig fra: 2013-12-03 Laget: 2013-12-03 Sist oppdatert: 2016-02-04bibliografisk kontrollert
    2. Multi-unit common value auctions: a laboratory experiment with three sealed-bid mechanisms
    Åpne denne publikasjonen i ny fane eller vindu >>Multi-unit common value auctions: a laboratory experiment with three sealed-bid mechanisms
    2012 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    This study addresses a discrete common value environment with independent (one-dimensional) private signals, where the seller offers two identical units and the buyers have (flat) demand for both. Each session is conducted with2, 3 or 4 buyers. Three auction formats are used: the discriminatory, uniformand Vickrey auctions which are all subjected to a variation in the number of bidders and to repeating bid rounds on each subject. The main findings are that there are no significant differences between the uniform and the discriminatory auction in collecting revenue, while the Vickrey auction comes out as inferior. More bidders in the auction result in a greater revenue and level out the performance across the mechanisms. Demand reduction is visible in the experiment, but it is not as prominent as anticipated. Moreover, subjects come closer to equilibrium play over time. Finally, the winner’s curse is less severe than what is reported for inexperienced bidders in other studies.

    Publisher
    s. 35
    Emneord
    Economics, Ekonomi
    HSV kategori
    Forskningsprogram
    SAB, Qa Economics and finance
    Identifikatorer
    urn:nbn:se:vti:diva-5314 (URN)
    Tilgjengelig fra: 2013-12-03 Laget: 2013-12-03 Sist oppdatert: 2014-06-10bibliografisk kontrollert
    3. Multi-unit common value auctions: an experimental comparison between the static and the dynamic uniform auction
    Åpne denne publikasjonen i ny fane eller vindu >>Multi-unit common value auctions: an experimental comparison between the static and the dynamic uniform auction
    2012 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    It is still an open question whether the dynamic or the static format should be used in multi-unit settings, in a uniform price auction. The present study conducts an economic experiment in a common value environment, where it is found that it is more a question of whether the auctioneer wants to facilitate price discovery, and thereby lessen the otherwise pervasive overbidding, or if only the revenue is important. The experiment in the present paper provides evidence that the static format gives a significantly greater revenue than the dynamic auction, in both small and large group sizes. But a higher revenue comes at a cost; half of the auctions in the static format yield negative profits to the bidders, the winner’s curse is more severely widespread in the static auction, and only a minority of the bidders use the equilibrium bidding strategy.

    Publisher
    s. 35
    Emneord
    Economics, Ekonomi
    HSV kategori
    Forskningsprogram
    SAB, Qa Economics and finance
    Identifikatorer
    urn:nbn:se:vti:diva-5315 (URN)
    Tilgjengelig fra: 2013-12-03 Laget: 2013-12-03 Sist oppdatert: 2014-06-10bibliografisk kontrollert
  • 11.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Optimal taxation of intermediate goods in the presence of externalities: A survey towards the transport sector2004Rapport (Annet vitenskapelig)
    Abstract [sv]

    The paper surveys the literature on optimal taxation with emphasis on intermediate goods, or, more specific, freight (road) transport. There are two models frequently used, first, the one emanated from Diamond & Mirrlees' (1971) paper, where the production efficiency lemma made it clear that intermediate goods was not to be taxed. And, second, the Ramsey-Boiteux model where a cost-of-service regulation imposes a budget constraint for the regulated firm. In the latter model, in contrast to the first, freight transports (intermediate goods) are to be taxed in the Ramsey tradition, and thus trades the production efficiency lemma against a budget restriction. The paper also discusses welfare effects due to environmental tax reforms, with emphasis to what has become to known as the double dividend hypothesis. Finally, administrative costs in the context of optimal taxation is touched upon, a subject that is to a large degree repressed in optimal tax theory.

  • 12.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Optimal taxation of intermediate goods in the presence of externalities: A survey towards the transport sector2006Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    The paper surveys the literature on optimal taxation with emphasis on intermediate goods, or, more specific, freight (road) transport. There are two models frequently used, first, the one emanated from Diamond & Mirrlees' (1971) paper, where the production efficiency lemma made it clear that intermediate goods was not to be taxed. And, second, the Ramsey-Boiteux model where a cost-of-service regulation imposes a budget constraint for the regulated firm. In the latter model, in contrast to the first, freight transports (intermediate goods) are to be taxed in the Ramsey tradition, and thus trades the production efficiency lemma against a budget restriction. The paper also discusses welfare effects due to environmental tax reforms, with emphasis to what has become to known as the double dividend hypothesis. Finally, administrative costs in the context of optimal taxation is touched upon, a subject that is to a large degree repressed in optimal tax theory.

  • 13.
    Ahlberg, Joakim
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Revenues in discrete multi-unit, common value auctions: a study of three sealed-bid mechanisms2009Inngår i: Portuguese economic journal, ISSN 1617-9838, Vol. 8, nr 1, s. 21s. 3-14Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We propose in this paper a discrete bidding model, both on quantities and in pricing. It has a two-unit demand environment where subjects bid for contracts with an unknown redemption value, common to all bidders. Prior to bidding, the bidders receive private signals of information on the (common) value. Both the value and the signals are drawn from a known discrete affiliated joint distribution. The relevant task for the paper is to compare equilibrium strategies and the seller's revenue between the three auction formats. We find that, among the three auction formats below with two players, the Vickrey auction always gives the most revenue to the seller, where the discriminatory auction becomes second and the uniform auction last. We also find that, in equilibrium, bidders bid the same amount on both items in the discriminatory auction; a phenomenon we do not notice in either of the other two auction formats. There, different amount of demand reduction is encountered.

  • 14.
    Ahlberg, Joakim
    et al.
    Ramböll .
    Ericson, Johan
    WSP.
    Johansson, Oskar
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Ridderstedt, Ivan
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Marginalkostnad för luftfartens infrastruktur2017Rapport (Annet vitenskapelig)
    Abstract [sv]

    Huvudsyftet med denna studie är att skatta marginalkostnaderna för luftfartens infrastruktur, men då det inte finns någon enhetlig definition om vad som är kostnadsbasen för infrastrukturen, det vill säga vad som bör ingå i en marginalkostnadsberäkning, så ingår också ingår också en diskussion kring vilka kostnader som bör inkluderas i en marginalkostnadsberäkning i forskningsfrågan. Ett ytterligare syfte med studien är att relatera de framtagna marginalkostnaderna till dagens prissättning och undersöka huruvida luftfarten betalar sina samhällsekonomiska kostnader.

    Med hjälp av kostnadsdata från Arlanda och från Luftfartsverket skattas marginalkostnaden för utnyttjandet av (relevant) flygplatsinfrastruktur och för infrastrukturen för operativ flygtrafikledning. Den empiriska ansats som använts för att analysera kostnadsposterna är en regressionsanalys, med justering för månadsspecifika variationer i resmönster, då flygplatsdelen undersöks, samt med hänsyn till regionala skillnader för flygplatser, då flygtrafikledning i tornen undersöks.

    Det finns en del osäkerheter i studien, men med bakgrund av detta indikerar resultaten att den genomsnittliga marginalkostnaden för infrastrukturen ligger kring 13 kr per passagerare och 1 168 kr per startat flygplan. Motsvarande skattning för flygtrafikledningen är även den osäker, med resultat som indikerar en marginalkostnad på 373 kr per flygning. Vidare förefaller det som att finansieringen av den statliga luftfartsinfrastrukturen inte enbart skulle kunna ske med intäkterna från marginalkostnadsbaserade avgifter.

  • 15.
    Ahlberg, Joakim
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Nilsson, Jan-Eric
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Ad hoc-processen: hur används ledig kapacitet i järnvägsnätet?2016Rapport (Annet vitenskapelig)
    Abstract [sv]

    Efter Trafikverkets fastställelse av nästkommande års tågplan i mitten av hösten varje år vidtar den så kallade ad hoc-processen, det vill säga ansökningar om tåglägen som kan använda ledig kapacitet i järnvägsnätet. VTI fick i september 2015 Transportstyrelsens uppdrag att fördjupa förståelsen av ad hoc-processen. Detta notat avrapporterar uppdraget.

    Mot bakgrund av den beskrivning som görs har avsikten varit att också hitta mått på betydelsen av denna process i förhållande till den process som leder fram till att en färdig tidplan läggs fast. Det har emellertid visat sig att Trafikverkets olika system för informationshantering inte är utformade för att möjliggöra en sådan beskrivning. Tack vare ett nyligen offentliggjort statistikhjälpmedel är det emellertid möjligt att konstatera att närmare 97 procent av de persontåg som bokats i den ordinarie processen också faktiskt körs. Denna uppgift avser två tredjedelar av tidtabellåret 2015. Avsikten från Trafikverket/Trafikanalys är att inom en nära framtid också redovisa motsvarande information om godstrafiken.

    Bakom denna siffra döljer sig emellertid både ett utflöde från, och ett inflöde till den mängd trafik som ska bedrivas i enlighet med den tidtabell som fastställs under hösten varje år. Det saknas emellertid kunskap om när dessa förändringar genomförs, vilket är av stor betydelse för att bedöma graden av flexibilitet i ad hoc-processen. Denna situation kan komma att förändras som ett resultat av att Trafikverket från och med den tidtabell som avser 2016 inför avgifter för att avboka tilldelad kapacitet. Avgiften blir högre ju närmare det planerade tågets avgång som ansökan tas tillbaka. Detta kan bidra till en förbättrad flexibilitet i användningen av den spårkapacitet som inte reserveras i den ordinarie tidtabellsläggningsprocessen. Ytterligare en konsekvens kan bli att informationen om processen förbättras.

  • 16.
    Ait Ali, Abderrahman
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Eliasson, Jonas
    Linköpings universitet.
    Railway capacity allocation: a survey of market organizations, allocation processes and track access charges2019Rapport (Annet vitenskapelig)
    Abstract [en]

    In the last few decades, many railway markets (especially in Europe) have been restructured to allow competition between different operators. This survey studies how competition has been introduced and regulated in a number of different countries around the world. In particular, we focus on a central part of market regulation specific to railway markets, namely the capacity allocation process. Conflicting capacity requests from different train operators need to be regulated and resolved, and the efficiency and transparency of this process is crucial. Related to this issue is how access charges are constructed and applied. Several European countries have vertically separated their railway markets, separating infrastructure management from train services provisions, thus allowing several train operators to compete with different passengers and freight services. However, few countries have so far managed to create efficient and transparent processes for allocating capacity between competing train operators, and incumbent operators still have larger market-share in many markets.

  • 17.
    Ait Ali, Abderrahman
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Warg, Jennifer
    KTH.
    Eliasson, Jonas
    Linköpings universitet.
    Pricing commercial train path requests based on societal costs2019Rapport (Annet vitenskapelig)
    Abstract [en]

    On deregulated railway markets, efficient capacity allocation is important. We study the case where commercial trains and publicly controlled traffic (“commuter trains”) use the same railway infrastructure and hence compete for capacity. We develop a method that can be used by an infrastructure manager trying to allocate capacity in a socially efficient way. The method calculates the loss of social benefits incurred by changing the commuter train timetable to accommodate a commercial train path request and based on this calculates a reservation price for the train path request. If the commercial operator’s willingness-to-pay for the train path exceeds the loss of social benefits, its request is approved. The calculation of social benefits takes into account changes in commuter train passengers’ travel times, waiting times, transfers and crowding, and changes in operating costs for the commuter train operator(s). The method is implemented in a microscopic simulation program, which makes it possible to test the robustness and feasibility of timetable alternatives. We show that the method is possible to apply in practice by demonstrating it in a case study from Stockholm, illustrating the magnitudes of the resulting commercial train path prices. We conclude that marginal societal costs of railway capacity in Stockholm are considerably higher than the current track access charges.

  • 18.
    Andersson, Henrik
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Perception of own death risk: a reassessment of road-traffic mortality risk2008Rapport (Annet vitenskapelig)
    Abstract [en]

    This study examines individuals' perception of their own road-mortality risk. Swedish data on respondents' subjective risk beliefs is used and compared with objective risk estimates. The objective risk is defined as the risk of the respondent's own age and gender group, and it is found that low and high risk groups over- and underassess their risk levels, respectively. This study replicates the analysis used by Andersson and Lundborg (2007) and the pattern of over- and underassessment found confirms their findings. As in their study, risk beliefs are updated in line with the Bayesian learning model, a relationship not statistically significant in this study, though. Regarding results of individual characteristics and risk beliefs in both studies, whereas, e.g., gender effects are robust, other results suggest a weak relationship between the perception of own road-mortality risk and individual characteristics.

  • 19.
    Andersson, Henrik
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Private and public WTP for safety: a validity test2007Rapport (Annet vitenskapelig)
    Abstract [en]

    To elicit an affected population's preferences for, e.g., better health or environment stated preference (SP) methods are often used. SP methods are based on hypothetical market settings which necessitates validity tests of the results. This study describes a validity test on the basis of theoretical predictions and empirical findings for private and public safety measures. According to the test, public willingness to pay (WTP) should exceed private WTP.

  • 20.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Hammitt, James
    Center for Risk Analysis, Harvard University, USA.
    Lindberg, Gunnar
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Sundström, Kristian
    SLU.
    Willingness to pay for car safety: sensitivity to time framing2008Rapport (Annet vitenskapelig)
    Abstract [en]

    Stated preference (SP) surveys attempt to obtain monetary values for non-market goods that reflect individuals "true" preferences. Numerous empirical studies suggest that monetary values from SP studies are sensitive to survey design and so may not reflect respondents' true preferences. This study examines the effect of time framing on respondents' willingness to pay (WTP) for car safety. We explore how WTP per unit risk reduction depends on the time period over which respondents pay and face reduced risk. Using data from a Swedish contingent valuation survey, we find that WTP is sensitive to time framing; estimates based on an annual scenario are about 30 to 70 percent higher than estimates from a monthly scenario.

  • 21.
    Andersson, Henrik
    et al.
    University of Toulouse.
    Hultkrantz, Lars
    Örebro Universitet.
    Lindberg, Gunnar
    Institute of Transport Economics.
    Nilsson, Jan-Eric
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Economic Analysis and Investment Priorities in Sweden's Transport Sector2018Inngår i: Journal of Benefit-Cost Analysis, ISSN 2194-5888, E-ISSN 2152-2812, Vol. 9, nr 1, s. 120-146Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Beginning as a planning tool within Sweden's national road administration some 50 years ago, benefit-cost analysis (BCA) has come to be a pillar of the national transport policy because of subsequent strategic choices made by the national parliament. These choices made it necessary to widen the analysis of costs to include also externalities and a foregone conclusion was that efficient investment priorities should be made based on BCA. But no one asked whether the political decision makers or the BCA models were up to that task. This paper reviews the institutional framework and practice of BCA in Sweden for transport infrastructure investment, and considers design issues that have been and still are debated, such as whether the discount rate should include a risk term and how to account for the marginal cost of public funds. A main concern with BCA results is the underestimation of construction costs, making transport sector projects look better than they are. Several ex post analyses have established that a higher NPV ratio increases the probability of being included in the investment program proposal prepared by the agency. The requirement to let projects undergo BCA seems to make planners trim project proposals by trying to reduce investment costs without significantly reducing benefits. This relationship is weaker among profitable projects. Moreover, there is no correlation between rate of return and the probability of being included in the final program, which is established on political grounds.

  • 22.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Jonsson, Lina
    Statens väg- och transportforskningsinstitut.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut.
    Bullervärden för samhällsekonomisk analys: beräkningar för väg- och järnvägsbuller2009Rapport (Annet vitenskapelig)
    Abstract [sv]

    Noise is a significant social problem. For example, more than 20 per cent of the European Union's population is exposed to higher noise than what is considered acceptable. The transport sector is a major contributor to society's increasing noise problem, due to increased traffic volumes and urbanization exposing more people to noise. Road traffic is admittedly the largest individual noise source in the transport sector, but other transport modes such as aircraft and railways are also responsible for considerable noise emissions. Noise entails costs for the society. This fact, and that society has different needs, means that policies and projects to reduce noise levels need to be evaluated to secure an efficient resource allocation. Benefit cost analysis is a powerful tool to evaluate noise abatement, but it requires both benefits and costs to be measured in a common metric, i.e. in monetary values. Today's official monetary values for all modes are based on the impact of road-traffic noise on property prices. It is a well established fact that the disturbance which individuals experience differs between modes, and therefore there is a need to estimate monetary values based on the respective modes. This report focuses on road and rail noise, two noise sources with different characteristics. This study describes the need to revise the current official Swedish policy values for noise abatement. Current values for road-traffic noise show a progressive relationship between the social cost and the noise level that is too strong, and values for railway noise has been missing and instead based on results for road noise. Valuation of health effects should also be based on EKM since it is sanctioned within the EU, instead of the approach now proposed by ASEK based on estimated total social costs from noise exposure in relation to estimates from willingness to pay studies.

  • 23.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Jonsson, Lina
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö och trafikanalys, MTA.
    Property prices and exposure to multiple noise sources: hedonic regression with road and railway noise2008Rapport (Annet vitenskapelig)
    Abstract [en]

    This study examines the effect of road and railway noise on property prices. It uses the hedonic regression technique on a Swedish data set that contains information about both road and railway noise for each property, and finds that road noise has a larger negative impact on the property prices than railway noise. This is in line with the evidence from the acoustical literature which has shown that individuals are more disturbed by road than railway noise, but contradicts recent results from a hedonic study on data of the United Kingdom.

  • 24.
    Andersson, Henrik
    et al.
    Toulouse School of Economics LERNA.
    Jonsson, Lina
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut.
    Property Prices and Exposure to Multiple Noise Sources: Hedonic Regression with Road and Railway Noise2010Inngår i: Environmental and Resource Economics, ISSN 0924-6460, E-ISSN 1573-1502, Vol. 45, nr 1, s. 73-89Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This study examines the effect of road and railway noise on property prices. It uses the hedonic regression technique on a Swedish data set that contains information about both road and railway noise for each property, and finds that road noise has a larger negative impact on the property prices than railway noise. This is in line with the evidence from the acoustical literature which has shown that individuals are more disturbed by road than railway noise, but contradicts recent results from a hedonic study on data of the United Kingdom.

  • 25.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Lindberg, Gunnar
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Benevolence and the value of road safety2007Rapport (Annet vitenskapelig)
    Abstract [en]

    This study uses the contingent valuation method to elicit individuals' preferences for their own and others' safety in road-traffic. Whereas one group is asked about a private safety device for themselves, other groups are asked about safety devices for their children, household, relatives and the public. Support is found for the hypothesis that individuals are not purely selfish when it comes the safety of others.

  • 26.
    Andersson, Henrik
    et al.
    Toulouse School of Economics.
    Swärdh, Jan-Erik
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö, MILJÖ.
    Efterfrågan på tystnad: skattning av betalningsviljan för icke-marginella förändringar av vägtrafikbuller2013Rapport (Annet vitenskapelig)
    Abstract [sv]

    Efterfrågan på tystnad från vägbullerexponering skattas i detta projekt baserat på båda stegen i en så kallad hedonisk modell. Vi använder data från sju olika kommuner runt om i Sverige. Baserat på efterfrågekurvan kan vi räkna ut betalningsviljor för icke-marginella förändringar i bullerexponering från vägtrafik. Dessa resultat har stor användning i samhällsekonomiska kalkyler inom transportsektorn. Våra skattningsresultat visar att betalningsviljan för en bullerreducering från 66 till 65 dB är 2211 kronor per individ och år och 477 kronor per individ och år för en bullerreducering från 56 till 55 dB. Resultaten visar ingen betalningsvilja för bullerreduceringar under 52,8 dB. För en bullerreducering från 66 dB till 52,8 dB och alla lägre bullernivåer är betalningsviljan 15 225 kronor. Denna summa är även kostnaden för att utsättas för 66 dB vägbuller per individ och år.

  • 27.
    Andersson, Henrik
    et al.
    Toulouse School of Economics LERNA Université Toulouse 1.
    Swärdh, Jan-Erik
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Ögren, Mikael
    Göteborgs universitet.
    Traffic noise effects of property prices: hedonic estimates based on multiple noise indicators2015Rapport (Annet vitenskapelig)
    Abstract [en]

    Valuation of traffic noise abatement based on hedonic pricing models of the property market has traditionally measured the noise as the equivalent, or another average, level. What is not captured in such a noise indicator is the maximum noise level of a vehicle passage. In this study, we incorporate the maximum noise level in the hedonic model letting the property price depend on both the equivalent noise level and the maximum noise level. Hedonic models for both rail and road noise are estimated. Data consists of characteristics of sold properties, property-specific noise calculation, and geographical variables.

    We use the hedonic approach to estimate the marginal willingness to pay (WTP) for maximum noise abatement where we model the effect as the maximum noise level subtracted with the equivalent noise level. Furthermore, we control for the equivalent noise level in the estimations. The estimated results show that including the maximum noise level in the model has influence on the property prices, but only for rail and not for road. This means that for road we cannot reject the hypothesis that WTP for noise abatement is based on the equivalent noise level only. For rail, on the other hand, we estimate the marginal WTP for the maximum noise level and it turns out to be substantial. Also, the marginal WTP for the equivalent noise levels seems to be unaffected by the inclusion of the maximum noise level in the model. More research of this novel topic is requested though.

  • 28.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Treich, Nicolas
    Toulouse School of Economics.
    The value of a statistical life2008Rapport (Annet vitenskapelig)
    Abstract [en]

    This paper on the value of a statistical life (VSL) has been prepared for the Handbook in Transport Economics, edited by André de Palma, Robin Lindsey, Emile Quinet and Roger Vickerman. The paper's first objective is to survey some classical theoretical and empirical findings in the VSL literature; but it also attempts to clarify some of these issues often raised by the application of the WTP approach to study of mortality risks.

  • 29.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö och trafikanalys, MTA.
    Charging the polluters: a pricing model for road and railway noise2011Rapport (Annet vitenskapelig)
    Abstract [en]

    This study outlines a method to estimate the short run marginal cost (SRMC) for road and railway noise. It is based on standardized calculation methods for total noise levels and monetary cost estimates from well established evaluation methods. Here official calculation methods and monetary values are used for Sweden, but the estimation method for the SRMC outlined can be directly applied using other standardized noise calculation methods and monetary values. This implies that the current knowledge regarding the calculation of total noise levels and the evaluation of the social cost of noise can be extended to estimate the marginal effect as well. This is an important finding since it enables policy makers to price noise externalities in an appropriate way. Several sensitivity tests run for the SRMC show that: (i) increasing the total traffic on the infrastructure has only a minor influence, (ii) estimates are quite sensitive to the number of exposed individuals, and (iii) to the monetary values used. Hence, benefits transfer, i.e. using monetary values elicited based on road noise for railway noise, should be done with caution or not at all. Results also show that the use of quiet technology can have a significant effect on the SRMC. The fact that this model is able to differentiate not only modes of transport, but also vehicles and even technologies is an important finding. It is essential that the noise charges give the operators the right incentives to choose their optimal allocation.

  • 30.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö och trafikanalys, MTA.
    Marginal cost pricing of noise in railway infrastructure2008Rapport (Annet vitenskapelig)
    Abstract [en]

    In order to mitigate negative effects from traffic it has been decided that infrastructure charges in the European Union (EU) should be based on short run marginal costs. The Swedish Parliament has legislated that operators in the Swedish railway infrastructure must pay charges based on short run marginal social costs in order to mitigate externalities in railway infrastructure. Internalization of the social cost of noise is of particular interest, since it is the only environmental problem perceived as more troublesome today than in the early 1990s. Inclusion of a noise component in rail infrastructure charges raises two issues: (i) the monetary evaluation of noise abatement, since noise is a non-market good, and (ii) the estimation of the effect on the noise level that one extra train will create. Regarding the latter, we are interested in the marginal noise, since infrastructure charges based on the short-run marginal cost principle should be based on the effect from the marginal train, not the noise level itself. Using already existing knowledge, this study shows that it is possible to implement a noise component in the rail infrastructure charges. The values that are used today to estimate the social cost of noise exposure in cost benefit analysis can also be used to calculate the marginal cost. We recommend, however, that further research be carried out in order to get more robust estimates based on railway traffic. We also show that the existing noise estimation models can easily be modified to estimate the marginal noise. Noise infrastructure charges give the operators incentives to reduce their noise emissions. We believe that this kind of charge can be used to reduce overall emission levels to an optimal social level, but that it is important for the charge to be based on monetary estimates for rail-traffic and not road-traffic.

  • 31.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut.
    Noise charges in railway infrastructure: a pricing schedule based on the marginal cost principle2006Rapport (Annet vitenskapelig)
    Abstract [en]

    In order to mitigate the negative effects of transportation and to achieve a competitive transport sector, infrastructure charges in the European Union shall be based on short-run marginal costs. This paper shows that railway-noise charges can be estimated using already obtained knowledge of monetary and acoustical noise evaluation. Most European countries have standardised calculation methods for total noise level, which can be used to estimate the marginal acoustical effect. Based on a Swedish case study (with a relatively high number of exposed individuals), railway-noise charges are estimated at 0.026, 0.099 and 0.89 e/km for commuter, high-speed and freight trains, respectively.

  • 32.
    Andersson, Henrik
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Ögren, Mikael
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö och trafikanalys, MTA.
    Noise charges in road traffic: a pricing schedule based on the marginal cost principle2007Rapport (Annet vitenskapelig)
    Abstract [en]

    One way of mitigating the negative effects of noise from road traffic is to include the external cost of noise in a road charging system. This study shows how standardized calculation methods for road traffic noise can be used together with monetary estimates of the social cost of noise exposure to calculate charges based on the social marginal cost. Using Swedish data on traffic volume and individuals exposed to road noise, together with official Swedish monetary values for noise exposure, we estimate road-noise charges for light (cars) and heavy (trucks) vehicles.

  • 33.
    Andersson, Mats
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Fixed effects estimation of marginal railway infrastructure costs in Sweden2007Rapport (Annet vitenskapelig)
    Abstract [en]

    New railway legislation in Sweden has increased the need for transparent access charges on the Swedish railway network. We estimate cost functions for infrastructure operation, maintenance and renewal in the Swedish national railway network, using unobserved effects models and calculate marginal costs for railway infrastructure wear and tear. We find evidence of unobserved fixed effects at a track section level for infrastructure operation and maintenance costs. The estimated weighted average marginal infrastructure operation cost is SEK 0.12 per train kilometre and the estimated marginal maintenance cost is SEK 0.0073 per gross tonne kilometre. Altogether, the results indicate that the current charge for railway infrastructure wear and tear in Sweden is below marginal cost.

  • 34.
    Andersson, Mats
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Marginal cost of railway infrastructure wear and tear for freight and passenger trains in Sweden2010Rapport (Annet vitenskapelig)
    Abstract [en]

    We analyse maintenance cost data for Swedish railway infrastructure in relation to traffic volumes and network characteristics, and separate the cost impact from passenger and freight trains. Lines with mixed passenger and freight traffic, and dedicated freight lines are analysed separately using both log-linear and Box-Cox regression models. We find that for mixed lines, the Box-Cox specification is preferred, while a log-linear model is chosen in the case of dedicated freight lines. The cost elasticity with respect to output is found to be higher for passenger trains than for freight trains. From a marginal cost pricing perspective, freight trains are currently over-charged, while passenger trains are under-charged.

  • 35.
    Andersson, Mats
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Marginal railway infrastructure costs in a dynamic context2007Rapport (Annet vitenskapelig)
    Abstract [en]

    In this paper, dynamic aspects of railway infrastructure operation and maintenance costs in Sweden are explored. Econometric cost functions are estimated to check the robustness of previous marginal cost estimates by introducing lags and leads of both dependent and independent variables. We find support for a forward-looking behaviour within the Swedish National Rail Administration (Banverket) as both infrastructure operation and maintenance costs are reduced prior to a major renewal. There are also indications of both lagged traffic and costs affecting the cost structure, but these results are more uncertain due to limitations in data.

  • 36.
    Andersson, Mats
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Marginal railway renewal costs: a survival data approach2007Rapport (Annet vitenskapelig)
    Abstract [en]

    In this paper, renewal costs for railway tracks are investigated using survival analysis. The purpose is to derive the effect from increased traffic volumes on rail renewal cycle lengths and to calculate associated marginal costs. A flow sample of censored data containing almost 1 500 observations on the Swedish main railway network is used. We specify Weibull accelerated failure time regression models, and estimate deterioration elasticities for total tonnage as well as for passenger and freight tonnages separately. Marginal costs are calculated as a change in present values of renewal costs from premature renewal following increased traffic volumes.

  • 37.
    Andersson, Mats
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Rail cost allocation for Europe: Annex 1A. Marginal cost of railway infrastructure wear and tear for freight and passenger trains in Sweden2009Rapport (Annet vitenskapelig)
    Abstract [en]

    We analyse maintenance cost data for Swedish railway infrastructure in relation to traffic volumes and other characteristics, and separate the cost impact from passenger and freight trains. Lines with mixed passenger and freight traffic, and dedicated freight lines are analysed separately using both log-linear and Box-Cox regression models. We find that for mixed lines, the Box-Cox specification is preferred, while a log-linear model is chosen in the case of dedicated freight lines. The cost elasticity with respect to output is found to be higher for passenger trains than for freight trains. From a marginal cost pricing perspective, freight trains are currently paying too much, while passenger trains should be charged more. An adjusted pricing scheme based on these results would still lead to higher revenues than today if total demand is unaffected.

  • 38.
    Andersson, Mats
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Björklund, Gunilla
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Marginal railway track renewal costs: a survival data approach2011Rapport (Annet vitenskapelig)
    Abstract [en]

    In this paper, renewal costs for railway tracks are investigated using survival analysis. The purpose is to derive the effect from increased traffic volumes on rail renewal cycle lengths and to calculate associated marginal costs. A flow sample of censored data containing almost 1 300 observations on the Swedish main railway network is used. We specify Weibull accelerated failure time regression models, and estimate deterioration elasticities for total tonnage as well as for passenger and freight tonnages separately. Marginal costs are calculated as a change in present values of renewal costs from premature renewal following increased traffic volumes. The marginal cost for aggregate freight and passenger trains is estimated to approximately SEK 0.002 per gross ton kilometre.

  • 39.
    Andersson, Mats
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Nyström, Johan
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Odolinski, Kristofer
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Wieweg, Lena
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Wikberg, Åsa
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Strategi för utveckling av en samhällsekonomisk analysmodell för drift, underhåll och reinvestering av väg- och järnvägsinfrastruktur2011Rapport (Annet vitenskapelig)
    Abstract [sv]

    Möjligheten att fatta beslut om behovet av anslagsmedel till drift, underhåll och reinvestering av vägaroch järnvägar baserat på ett väl strukturerat underlag är idag små. Detta skapar betydande risker attmedel används på ett samhällsekonomiskt ineffektivt sätt. För att Trafikverket ska kunna genomföradenna verksamhet så att sannolikheten att medlen används på rätt sätt ökar krävs därför en utveckling avett transparent beslutstöd.VTI redovisar i föreliggande rapport en kartläggning av kunskapsläget inom de olika delområden därkunskaper krävs för att få till stånd en samhällsekonomisk analys av drift, underhåll och reinvestering.Vår bedömning är att det idag inte finns modellverktyg som gör det möjligt att utan vidare genomförasådana analyser. Samtidigt visar genomgången att det finns goda förutsättningar att redan inom relativtkort tid ta fram ett underlag som gör det möjligt att besvara åtminstone delar av de frågeställningar somformulerats. Genomgången pekar således på att det finns stora möjligheter att flytta fram positionernabåde inom väg- och järnvägsområdet. Fem specifika projekt har utformats varav tre avser insatser på kortsikt och två på lång sikt. Målsättningen på lång sikt är att kunna göra en bedömning av vilkenkostnadsvolym och tillståndsnivå som behövs utifrån ett samhällsekonomiskt perspektiv på olika vägaroch järnvägar.

  • 40.
    Andersson, Mats
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Smith, Andrew
    Institute for Transport Studies, University of L eeds, UK .
    Wikberg, Åsa
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Wheat, Phillip
    Institute for Transport Studies, University of L eeds, UK .
    Estimating the marginal cost of railway track renewals using corner solution models2011Rapport (Annet vitenskapelig)
    Abstract [en]

    Economic theory advocates marginal cost pricing for efficient utilisation of transport infrastructure. A growing body of literature has emerged on the issue of rail marginal infrastructure wear and tear costs, but the majority of the work is focused on costs for infrastructure maintenance. Railway track renewals are a substantial part of an infrastructure manager’s budget, but in disaggregated statistical analyses they cause problems for traditional regression models since there is a piling up of values of the dependent variable at zero. Previous econometric work has sought to circumvent the problem by aggregation in some way. In this paper we instead apply corner solution models to disaggregate (tracksection) data, including the zero observations. We derive track renewal cost elasticities with respect to traffic volumes and in turn marginal renewal costs using Swedish railway renewal data over the period 1999 to 2009. This paper is the first attempt in the literature to apply corner solution models, and in particular the two-part model, to disaggregate renewal cost data in railways. It is also the first paper that we are aware of to report usage elasticities specifically for renewal costs and therefore adds important new evidence to the previous literature where there is a paucity of studies on renewals and considerable uncertainty over the effects of rail traffic on renewal costs.

  • 41.
    Andersson, Matts
    et al.
    Kungliga Tekniska Högskolan.
    Mandell, Svante
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi, TEK.
    Thörn, Helena Braun
    Kungliga Tekniska Högskolan.
    Gomér, Ylva
    WSP Analysis & Strategy.
    The effect of minimum parking requirements on the housing stock2016Inngår i: Transport Policy, ISSN 0967-070X, E-ISSN 1879-310X, Vol. 49, s. 206-215Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The cost of parking is in many cities subsidized and instead channelled through higher housing prices, wages, taxes, etc. The effects on other markets are principally well known, but the work on the area is limited. In this paper, we study how parking norms affect the size of the housing stock. Our analysis is based on a model of the rental, asset- and construction markets, the results are quality-assured by interviews with market actors. Prices and profits are affected when constructors are forced, through parking norms, to build more parking spaces than the customers demand. Parking norms reduce the housing stock by 1.2% and increase rents by 2.4% (SEK 300) in our example suburb.

  • 42.
    Andersson, Roland
    et al.
    Royal Institute of Technology (KTH).
    Mandell, Svante
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Wilhelmsson, Mats
    Royal Institute of Technology (KTH).
    Explaining regional changes in employment2013Konferansepaper (Fagfellevurdert)
  • 43.
    Andersson-Sköld, Yvonne
    et al.
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö, MILJÖ.
    Johannesson, Mikael
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Miljö, MILJÖ.
    Uppfyllelse av klimat- och miljömål vid en fullständig internalisering av vägtrafikens samhällsekonomiska kostnader: en delrapport inom SAMKOST 32018Rapport (Annet vitenskapelig)
    Abstract [sv]

    Regeringen gav Statens väg- och transportforskningsinstitut (VTI) den 9 februari 2017 i uppdrag att bland annat bedöma konsekvenserna för möjligheten att nå klimat- och miljömål av att internalisera trafikens externa kostnader. Transportsektorn har direkt eller indirekt påverkan på i princip alla de svenska miljökvalitetsmålen. Den här rapporten fokuserar på vägtrafiken och de miljökvalitetsmål som kan relateras till de miljö- och hälsoaspekter som beaktades inom SAMKOST 2 och där det finns relevanta och kvantifierbara etappmål, preciseringar och indikatorer: Begränsad klimatpåverkan, Frisk luft, Bara naturlig försurning, Ingen övergödning, Buller inom miljökvalitetsmålet God bebyggd miljö.

    Om en 100-procentig internalisering hade införts 2016 skulle det enligt beräkningar i rapporten bidra till att utsläppen av koldioxid år 2030 sammanvägt för personbilar och lastbilar blir cirka 2 procent (motsvarande 0,4 miljoner ton) lägre än med dagens internaliseringsgrad vilket är lite jämfört med osäkerheterna i beräkningarna beroende på antaganden om priselasticitet, trafikutveckling, ekonomiska utvecklingen, den tekniska utvecklingen, framtida pris på olja med mera.

    För att klara målet att minska utsläppen av växthusgaser från inrikes transporter (utom flyg) med 70 procent till år 2030 jämfört med 2010 års utsläpp krävs ytterligare styrmedel och åtgärder än de som redan har beslutats. Det krävs att utsläppen minskar med ytterligare 1–3 miljoner ton eller 5–15 procent. Om den nuvarande koldioxidskatten på 1,14 kr per kg ökade till 2 kr skulle det med samma antaganden som gjort för övriga beräkningar i rapporten innebära att koldioxidutsläppen minskar med ytterligare cirka 1,6 miljoner ton eller 8 procent än för motsvarande förutsättningar med dagens internaliseringsnivå varvid målet skulle nås.

    För framtida utsläpp av kväveoxider har en hundraprocentig internalisering eller en ökad koldioxidskatt endast marginell betydelse. I det fallet är utsläppskrav och teknikutveckling avgörande. För buller och partiklar har det framtida trafikarbetet stor betydelse.

  • 44.
    Anderstig, Christer
    et al.
    WSP Analysis & Strategy.
    Berglund, Svante
    WSP Analysis & Strategy.
    Eliasson, Jonas
    KTH.
    Andersson, Matts
    WSP Analysis & Strategy.
    Pyddoke, Roger
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Stockholm, TEK-S.
    Congestion charges and labour market imperfections: “wider economic benefits” or “losses”?2012Rapport (Annet vitenskapelig)
    Abstract [en]

    The presence of distortive taxation and agglomeration benefits in the labour market means that there are benefits and losses not captured by standard cost-benefit analyses of transport policy measures. Recent theoretical analyses have raised concerns that the labour market effects of congestion charges may constitute considerable losses in the form of reduced aggregate labour income, over and above what is captured by the consumer surplus in the standard analysis of congestion charges – possibly to the extent that congestion charges may reduce aggregate social welfare, contrary to conventional wisdom in transport economics. The sign and size of these effects are an empirical question, however. We investigate this issue by estimating the labour income effects of the Stockholm congestion charges, using an estimated relationship between workplace accessibility and labour income. Results show positive effects on labour income, meaning that the “wider economic benefits” of this system are in fact benefits, not losses. It turns out to be crucial that the model accounts for value-of-time heterogeneity in the income/accessibility relationship and in the calculation of generalized travel costs.

  • 45. Arnek, Magnus
    et al.
    Hellsvik, Lars
    Trollius, Magnus
    En svensk modell för offentlig-privat samverkan vid infrastrukturinvesteringar: rapport framtagen av en för Banverket, VTI och Vägverket gemensam arbetsgrupp2007Rapport (Annet vitenskapelig)
    Abstract [sv]

    The present report is the result of a joint project between Banverket (the Swedish rail administration), Vägverket (the Swedish Road Administration) and VTI (Swedish National Road and Transport Research Institute). During winter 2007 the agencies were commissioned by the Ministry of Enterprise, Energy and Communications to assess the legal, economic and technical prerequisites for implementing a model for Public Private Partnership (PPP, or OPS which is the domestic acronym) for road and railway infrastructure investments. Focus in the report is on establishing a framework for PPP projects which is footed in an ambition to establish efficiency in infrastructure construction and maintenance. In the proposal for model design, three components of the contract between a public sector representative and a private consortium are focused: The bundling of investment and maintenance for a long - 15 to 30 years or even longer - period of time; the use of stringent and measurable functional or performance requirements; and the private provision of up-front financing, subsequently being repaid over the lifetime of the contract period. The report also addresses risk issues at length. A more precise specification of the sources of risk in infrastructure construction is discussed and the idea of minimising expected costs as a target for allocation of risk between the parties is suggested. The necessity to have actual competition - i.e. at least three bidders - during the procurement process is established.

  • 46.
    Arvidsson, Sara
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Does private information affect the insurance risk?: evidence from the automobile insurance market2010Rapport (Annet vitenskapelig)
    Abstract [en]

    We empirically investigate the effect of policyholders’ private information of risky traffic behavior on automobile insurance coverage and ex post risk. We combine our insurance company’s information with private information data that is not accessible to the insurance company. We show that being unable to reject the null of zero correlation is not necessarily consistent with symmetric information in the automobile insurance market. Our results are twofold: In contrast to much of the previous work we find a positive significant correlation for three groups of policyholders, consistent with the adverse selection prediction. We furthermore find that private information about risky traffic behavior increases ex post risk while it both increases and decreases the demand for extensive insurance. This supports our hypothesis that adverse and propitious is present simultaneously in this market.

  • 47.
    Arvidsson, Sara
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Predictors of customer loyalty in automobile insurance: the role of private information in risky driving behavior and claim history2011Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    Contract relevant information asymmetries are known to cause inefficiencies in markets. The information asymmetry is largest in the beginning of the customer insurer relationship but reduces over time; the longer a policyholder stays with the insurer the more the insurer learns about the policyholder’s risk. Two important characteristics of the market studied here imply that the information asymmetry may not be reduced for all policyholders. First, insurers do not have access to traffic violations, which are predictors of risk since policyholders with traffic violations are more likely to report a claim. Second, the insurers do not share information, such as previous claims, which means that the policyholder can flee a poor claim record by switching insurer. Hence, there may be a selection of high risk customers who switch insurer more often, such that the information asymmetry in this group is never reduced. To test this, we compare information asymmetries in two groups of policyholders; new customers who stay with the insurer for a period or less (short term), and long-term customers who stay with the insurer for several periods (loyal). The results indicate that departing policyholders are disproportionately high risks that constitute an adverse selection of risks, while loyal policyholders constitute a propitious (favorable) selection of risks.

    Older version: http://swopec.hhs.se/vtiwps/abs/vtiwps2011_002.htm

  • 48.
    Arvidsson, Sara
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Propitious selection in the vehicle insurance market2010Rapport (Annet vitenskapelig)
    Abstract [en]

    By combining Contract Theory and vehicle positioning techniques, insurance companies can replace some of the proxies for risk by actual traffic behavior when pricing the premium. A mechanism design model is used to illustrate that Usage Based Insurance (UBI) can separate risks in terms of driving behavior. This makes it possible to reward safe driving habits since the pricing scheme better reflects the accident risk. The conclusion is that UBI provides an actuarially fair premium for the insuree. It is further an efficient instrument to separate risks for the insurer since it reduces the information asymmetries highlighted in this paper.

  • 49.
    Arvidsson, Sara
    Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Transportekonomi Borlänge, TEK-B.
    Traffic violations and insurance data: a note on the role of age, gender, annual mileage and vehicle brand2011Rapport (Annet (populærvitenskap, debatt, mm))
    Abstract [en]

    Risky driving behavior is regarded as being one of the best predictors of traffic accidents. Traffic violations certainly signal risky driving behavior, but the analysis of the linkage of traffic violations, individual and vehicle characteristics and annual mileage has so far been hampered by the difficulty of gaining access to appropriate disaggregate data. The contribution of this paper is that it sets out and explores a rich data set in order to study traffic violations, including both accident involved and accident-free individuals. The data set comprises all insurance policies from Sweden’s largest automobile insurance company covering several years, in total 9.3 million observations, as well as information on fines and convictions for traffic violations. This implies that the methodological issues associated with self-reported violations and only accident involved individuals are disused. The first purpose is to establish the role of age and gender in traffic violations. The second purpose is to make a first attempt to establish whether vehicle owners of status brands are more likely to commit traffic violations. The results support previous findings as well as confirm the association between owners of status brands and traffic violations. The main conclusion is that insurance data provides a viable option when studying behavior, but it also raises new methodological issues.

    Older version: http://swopec.hhs.se/vtiwps/abs/vtiwps2011_003.htm

  • 50.
    Asp, Kenneth
    Statens väg- och transportforskningsinstitut.
    Transportforum 2001: sammanställning av konferensföredrag vid forskardagarna i Linköping 10-11 januari 20012001Konferanseproceedings (Annet vitenskapelig)
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