This paper develops a monopolistic competition model of multiproductfirms to explain the effect of trade liberalization on the product mix of multiproductexporting firms. The model shows that input-tariff reduction leads to increasesin a firm’s export values, especially for products that are...

This paper investigates whether and how import competition affects firm innovation. Using China’s World Trade Organization (WTO) accession as a quasi-natural experiment, we find that import competition reduces firm innovation, which is consistent with the Schumpeterian effect. We also find...