Misspecifications in modelling journeys to work
In this paper we perform a simulation procedure of testing models for journeys to work. The testing regime is carried out on a number of such models, mainly within the class of gravity models. We test the models on synthetic populations constructed from an aggregated set of a large number of worker subcategories, reflecting for instance different qualifications. Each subcategory is constructed from a gravity model where the population size and parameters are drawn from random distributions. The advantage of this approach is that a large number of tests can be carried out repeatedly to test the response of different kinds of models. We test how specific attributes of the spatial structure and worker heterogeneity are captured by different modelling alternatives. In addition we find that some model formulations falsely tend to report significant contributions to characteristics that were not taken into account in the data generating simulation process. This illustrates the imminent risk of drawing wrong conclusions in empirical work.
|Date of creation:||Aug 2004|
|Date of revision:|
|Contact details of provider:|| Postal: |
Web page: http://www.ersa.org
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- T J Fik & G F Mulligan, 1990. "Spatial flows and competing central places: towards a general theory of hierarchical interaction," Environment and Planning A, Pion Ltd, London, vol. 22(4), pages 527-549, April.
- Mark W Horner, 2002. "Extensions to the concept of excess commuting," Environment and Planning A, Pion Ltd, London, vol. 34(3), pages 543-566, March.
- Anas, Alex, 1983. "Discrete choice theory, information theory and the multinomial logit and gravity models," Transportation Research Part B: Methodological, Elsevier, vol. 17(1), pages 13-23, February.
- T J Fik & R G Amey & G F Mulligan, 1992. "Labor migration amongst hierarchically competing and intervening origins and destinations," Environment and Planning A, Pion Ltd, London, vol. 24(9), pages 1271-1290, September.
When requesting a correction, please mention this item's handle: RePEc:wiw:wiwrsa:ersa04p420. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Gunther Maier)
If references are entirely missing, you can add them using this form.