Exponential or Power Distance-Decay for Commuting? An Alternative Specification

Environment and Planning A, Vol. 41, No. 2, pp. 461–480

Posted: 2 Oct 2009

See all articles by Jacob J. de Vries

Jacob J. de Vries

VU University Amsterdam

Peter Nijkamp

VU University of Amsterdam - Department of Spatial Economics; Tinbergen Institute

Piet Rietveld

VU University Amsterdam - Department of Spatial Economics (Deceased)

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Abstract

In this paper we investigate the functional form of distance decay for commuting flows between municipalities in Denmark. Our inference is based on a single equation that includes variables to capture the effect of spatial structure. Special attention is given to a proper estimation method: We estimate the distance-decay parameters by nonlinear weighted least-squares with balancing factors. It appears that neither an exponential nor a power distance-decay function fits the data well. Using a spline regression we find a cost elasticity of -4 for distances around 20 km and a much smaller value for shorter and longer distances. It appears that the logarithm of distance decay can be described adequately as a (downward) logistic function of log cost.

Suggested Citation

de Vries, Jacob J. and Nijkamp, Peter and Rietveld, Piet, Exponential or Power Distance-Decay for Commuting? An Alternative Specification. Environment and Planning A, Vol. 41, No. 2, pp. 461–480 , Available at SSRN: https://ssrn.com/abstract=1480711

Jacob J. De Vries (Contact Author)

VU University Amsterdam ( email )

Department of Spatial Economics
De Boelelaan 1105
Amsterdam, 1081 HV
Netherlands

HOME PAGE: http://personal.vu.nl/j.j.de.vries/

Peter Nijkamp

VU University of Amsterdam - Department of Spatial Economics ( email )

De Boelelaan 1105
1081HV Amsterdam
Netherlands
+31 20 4446091 (Phone)
+31 20 4445611 (Fax)

Tinbergen Institute

Gustav Mahlerplein 117
Amsterdam, 1082 MS
Netherlands

Piet Rietveld

VU University Amsterdam - Department of Spatial Economics (Deceased)

De Boelelaan 1105
1081HV Amsterdam
Netherlands
+31 20 4446097 (Phone)
+31 20 4446004 (Fax)

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