Exponential or Power Distance-decay for Commuting? An Alternative Specification
AbstractIn this paper we determine the effect of transport cost on commuting flows, on the basis of an analysis of home-to-work journeys between municipalities in Denmark. Special attention is given to a proper estimation method and the form of the distance-decay function. It appears that neither an exponential nor a power distance-decay function fits the data well. The specification of log trips as a (downwards) logistic function of log cost results in a better fit. We find that the cost elasticity of commuting reaches a value of –4 for distances around 24 km, while it is close to 0 for both very short and very long distances. Finally, we demonstrate that the choice of functional form for distance-decay can make an important difference for predictions concerning the effect of infrastructure improvements on commuting flows.
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Bibliographic InfoPaper provided by Tinbergen Institute in its series Tinbergen Institute Discussion Papers with number 04-097/3.
Date of creation: 01 Sep 2004
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Web page: http://www.tinbergen.nl
Spatial Interaction; Distance-decay Function; Commuting; Denmark; Estimation; Heteroscedasticity;
Other versions of this item:
- Jacob J De Vries & Peter Nijkamp & Piet Rietveld, 2009. "Exponential or power distance-decay for commuting? An alternative specification," Environment and Planning A, Pion Ltd, London, vol. 41(2), pages 461-480, February.
- Jacob J. De Vries & Peter Nijkamp & Piet Rietveld, 2005. "Exponential or power distance-decay for commuting? An alternative specification," ERSA conference papers ersa05p261, European Regional Science Association.
- C21 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models
- J61 - Labor and Demographic Economics - - Mobility, Unemployment, Vacancies, and Immigrant Workers - - - Geographic Labor Mobility; Immigrant Workers
- R15 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Econometric and Input-Output Models; Other Methods
- R23 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Household Analysis - - - Regional Migration; Regional Labor Markets; Population
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