In this paper, we explore another factor besides trade costs that can affect firms’ exports: strategic interaction between firms in R&D investment. Three results can be highlighted. First, the volume of trade is higher in the presence of R&D than in the absence of it, given that R&D reduces...

Contrary to what has been standard in the international trade literature, we argue that firms' access to international markets should not be just reduced to exogenous factors such as trade costs. Instead, we defend that market access can also be endogenous, since firms can affect international...

Paul Krugman's model of trade predicts that the country with the relatively large number of consumers is the net exporter and hosts a disproportionate share of firms in the increasing returns sector. He terms these results "home market effects". This paper analyses three additional models...