In this paper we test the existence of rational habit formation in a multivariate model for alcohol and tobacco consumption. The theoretical framework, based on a dynamic adjustment cost model with forward-looking behaviour, is enhanced to include the intertemporal interactions between the two...

The literature on firm heterogeneity and trade has highlighted that most trading firms tend to engage in both importing and exporting activities. This may be due to some common sunk costs or to a true state dependence. This paper provides some evidence that helps sort this issue out. Using firm...

The literature on firm heterogeneity and trade has highlighted that most trading firms tend to engage in both importing and exporting activities. This paper provides some evidence that helps understanding to what extent this is the result of a two-way relationship. Using firm-level data for a...