This paper empirically examines the heterogeneity in the effects of multiple dimensions of distance on trade across detailed product groups. Using finite mixture modelling on bilateral trade data at the 3-digit SITC level, we endogenously group product categories into an, a priori unknown,...

This meta-analysis summarizes and explains the variation in the deterring effect of distance on tourism flows by analyzing 870 estimates from 139 primary studies utilizing data covering the last 25 years. We find substantial heterogeneity among studies that mostly correlates with (unobserved)...

Sa C., Florax R. J. G. M. and Rietveld P. (2004) Determinants of the regional demand for higher education in The Netherlands: a gravity model approach, Reg. Studies 38, 375-392. Studies on the determinants of the demand for higher education typically emphasize the relevance of socio-economic...