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Gravity, distance, and traffic flows in Mexico

Duran-Fernandez, Roberto and Santos, Georgina ORCID: https://orcid.org/0000-0002-8446-8297 2014. Gravity, distance, and traffic flows in Mexico. Research in Transportation Economics 46 , pp. 30-35. 10.1016/j.retrec.2014.09.003

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Abstract

This paper presents an econometric analysis that compares the performance of different measures of distance in a gravity model using state data for Mexico. The estimation shows that at this geographic scale, the definition of distance does not affect the explanatory power of the model significantly. However, time-based definitions of distance have a marginal improvement on the model fit in comparison to length-based measures. When geographic specific fixed effects are unknown, the model shows that distance measured as road network distance is a better predictor. The paper concludes that time-based definitions of distance present several advantages in comparison to traditional length-based definitions. However, at large geographic scales, where relative distances between every geographic unit are long, the use of length-based distance instead of time-based distance to approximate travel costs generates similar results.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Geography and Planning (GEOPL)
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
Uncontrolled Keywords: Gravity model; Distance measures; Time-based distance; Length-based distance; Travel costs; Mexico.
Additional Information: Issue title: Regional Development and Transport Infrastructure in Mexico.
Publisher: Elsevier
ISSN: 0739-8859
Date of First Compliant Deposit: 30 March 2016
Last Modified: 07 Nov 2023 18:27
URI: https://orca.cardiff.ac.uk/id/eprint/68459

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