Browsing Discussion papers (FOR) by Author "Thorsen, Inge"
Now showing items 1-15 of 15
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Adjusting for Cell Suppression in Commuting Trip Data
Braathen, Christian; Thorsen, Inge; Ubøe, Jan (Discussion paper;13/22, Working paper, 2022-12-13)Maximum entropy methods are used to infer the true trip-distribution matrix in cases where parts of the data are suppressed due to privacy concerns. Large proportions of the suppressed data are found to be inferred correctly ... -
An agent-based computational approach to explaining persistent spatial unemployment disparities
McArthur, David Philip; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2008-09)This paper explores possible reasons for persistent spatial unemployment disparities using agent-based computational methods. The method relies on observing the actions of thousands of individuals within an artificial ... -
Congested interregional infrastructure, road pricing and regional labour markets
McArthur, David Philip; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2009-04) -
An empirically based implementation and evaluation of a network model for commuting flows
Gitlesen, Jens Petter; Kleppe, Gisle; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2006)In this paper we present empirical results based on a network model for commuting flows. The model is a modified version of a construction introduced in Thorsen et al. (1999). Journeys-to-work are determined by distance ... -
Employment, transport infrastructure and rural depopulation: a new spatial equilibrium model
McArthur, David Philip; Thorsen, Inge; Ubøe, Jan (Discussion paper;09/2013, Working paper, 2013-09)In this paper we propose a new spatial equilibrium model, and use it to discuss issues related to rural depopulation. The discussion focuses on how investments in transport infras- tructure and the spatial distribution ... -
The impact of pecuniary costs on commuting flows
McArthur, David Philip; Kleppe, Gisle; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2010-05) -
A microeconomic approach to distance-deterrence functions in modeling journeys to work
Glenn, Paul; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2001)In this paper we suggest a microeconomic model for how commuting flows relate to traveling distance. Commuting is the preferred choice of a worker whenever he can obtain an increase in wages greater than the cost of ... -
Misspecifications due to aggregation of data in models for journeys-to-work
Gitlesen, Jens Petter; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2004-10)In this paper we develop a new simulation procedure that can be used to examine validity of model extensions. Our testing regime is carried out on a number of different trip distribution models. We test the models on ... -
Modeling heterogeneity in trip-distributions with partial information
Jörnsten, Kurt; Kleppe, Gisle; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2007)In this paper we propose a modified gravity model that takes into account that a population generally consists of heterogeneous groups, and we suggest a new statistical test for heterogeneity. We apply our new model to two ... -
Modelling social welfare effects of relocation and road pricing
Babri, Sahar; McArthur, David Philip; Thorsen, Inge; Ubøe, Jan (Discussion paper;42/14, Working paper, 2014-12)Road pricing is a popular congestion reduction strategy. However, there may be wider impacts associated with a road toll. We consider a factor which is sometimes overlooked, namely that workers and rms may choose to ... -
Optimum congestion pricing in a complex network
Babri, Sahar; McArthur, David Philip; Thorsen, Inge; Ubøe, Jan (Doctoral dissertation;04/13, Working paper, 2013-05)Road tolls are a well established way of dealing with problems of con- gestion. Over recent years, the literature has expanded to take account of how congestion charges might interact with imperfections in other mar- kets. ... -
Replication/prediction problems in the journey-to-work
Jörnsten, Kurt; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2002)In this paper we will consider gravity models for journeys-to-work. In applications of the theory it is sometimes assumed that the parameters in such models are fixed. We will provide examples to show that this is not ... -
Revelation of preferences in trip distribution models
Jörnsten, Kurt; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2007)In this paper we will see how commuter preferences can be revealed from observations of trip distributions. We will explain how to find unique representations of preference structures leading to an observed trip distribution, ... -
A spatial equilibrium simulation approach to explain unemployment rate differentials between areas
Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2002)This paper primarily focuses on how area-specific asymmetries and exogenous shocks influence spatial unemployment disparities. We approach through a model specification with two areas and two categories of workers with ... -
The spatial transferability of parameters in a gravity model of commuting flows
McArthur, David Philip; Kleppe, Gisle; Thorsen, Inge; Ubøe, Jan (Discussion paper, Working paper, 2010-05)