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 presents theory and evidence from Chinese firm-product data that, given firm productivity, trade liberalization increases product markups. This finding calls for a reconsideration of the well-established imports-as-market-discipline hypothesis. This paper further verifies underlying...

This paper presents theory and evidence from Chinese firm-product data that, given firm productivity, trade liberalization increases product markups. This finding calls for a reconsideration of the well-established imports-as-market-discipline hypothesis. This paper further verifies underlying...

This paper presents theory and evidence from Chinese firm-product data that, given productivity, trade liberalization via input tariff reductions induces an incumbent importer/exporter to increase product markups. This finding calls for a reconsideration of the well-established...

This paper develops a model of multi-product firms in the presence of different types of labor. I show that an increase in the supply of skilled labor has non- uniform impact on the firm scope: a rise in the number of skilled labor allows the highly productive firms to add more varieties into...