Since firm heterogeneity has been introduced into international trade models, the importance of firm entry and exit (the extensive margin) has been highlighted. In fact, Chaney (2008) illustrates how accounting for this extensive margin and heterogenous firms alters the standard gravity...

As is well established, one prediction of the heterogenous firms literature spearheaded by Melitz (2003) is that trade liberalization, by increasing import competition, drives less productive domestic firms from the market. This increases average productivity of the domestic economy via the...

We present an international trade model with multiproduct firms. Firms are heterogeneously endowed with two types of capabilities that jointly determine the trade-off within firms between managing a large portfolio of products and producing at low marginal cost. The model can explain many of the...

The conventional immigration and trade literature regards immigrants as mediators for informal barriers such as institutional and cultural differences. However, this notion neglects network effects stemming from short visits. This paper investigates the ways in which international student...

Theoretical and empirical work on export dynamics has generally assumed constant marginal production cost and therefore ignored domestic product market conditions. However, recent studies have documented a negative contemporaneous correlation between firms'domestic and export sales growth,...

We study the impact of the Brexit referendum on Irish exporters to the UK. The referendum triggered a sharp devaluation of the British pound vis-a-vis the euro and led to considerable uncertainty about future trade relations between the UK and the EU. Using administrative data on the universe of...