Increasing awareness of food safety issues has led to intensive use of sanitary, phytosanitary and quality-related regulations and standards, imposing a burden on exporting countries worldwide. This study assesses the impact of such regulations and standards estimating a gravity model for...

In the context of regression with a beta-type response variable, we propose a new method that links two methodologies: a distance-based model, and a beta regression with variable dispersion. The proposed model is useful for those situations where the response variable is a rate, a proportion or...

This paper investigates the relationship between market potential and the spatial variation in the number and the average size of firms. We adapt the canonical model of the New Economic Geography to demonstrate this relationship and to derive an empirical specification suitable for estimation...