Exponential or power distance-decay for commuting? An alternative specification
AbstractIn this paper we investigate the form of the distance-decay function for commuting, on the basis of an analysis of home-to-work relationships between municipalities in Denmark. The equation for the number of commuters is taken from Alonso’s Theory of Movements, in which the Spatial Interaction Models of Wilson’s Family are nested. Our estimation method separates the decay function F from the balancing factors, and includes a weighting procedure that takes specification error and heteroscedasticity into account. It appears that neither an exponential nor a power distance-decay function fits the data well. The specification of log F as a (downwards) logistic function of log cost results in a better fit. We find that the cost elasticity reaches a value of –4 for distances around 24 km, while it is close to 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 European Regional Science Association in its series ERSA conference papers with number ersa05p261.
Date of creation: Aug 2005
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- 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, 2004. "Exponential or Power Distance-decay for Commuting? An Alternative Specification," Tinbergen Institute Discussion Papers 04-097/3, Tinbergen Institute.
- 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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