This paper presents theory and evidence from highly disaggregated Chinese data that tariff reductions induce exporters to upgrade product quality. The paper documents two stylized facts and develops a simple analytic framework to predict that import tariff reductions induce an incumbent...

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...

In this paper, we merge the heterogenous firm trade model of Melitz (2003) with the Ricardian model of Dornbusch, Fisher and Samuelson (DFS 1977) to explain how the pattern of international specialization and trade is determined by the interaction of comparative advantage, economies of scale,...