This paper develops an approach to measuring the intensity of competition in international markets. The method measures the degree of 'outside' competition faced by exporters located in one source country from firms located outside the source country. We use the elasticity of price and quantity...

Instrumental variables (IV) are a common means to identify treatment effects. But standard IV methods do not allow us to unpack the complex treatment effects that arise when a treatment and its outcome together cause a second outcome of interest. For example, IV methods have been used to show...

Most international commerce is carried out by multinational firms, which use their foreign affiliates both to serve the market of the host country and to export to other markets outside the host country. In this paper, I examine the determinants of multinational firms' location and production...