The aim of this paper is to explore the patterns of trade duration across regions and to identify its determinants. Using an extended Cox model, we evaluate the effects of country and product characteristics, as well as of trade cost variables on the duration of trade relationships from 96...

There is an ongoing debate in the literature about the quality content of Chinese exports and to what extent China imposes a threat to the market positions of advanced economies. While China's export structure is very similar to that of the advanced world, its export unit values are well below...

There is an ongoing debate in the literature about the quality content of Chinese exports and to what extent China imposes a threat to the market positions of advanced economies. While China's export structure is very similar to that of the advanced world, its export unit values are well below...

This paper aims at providing causal evidence on the effects of expanded imported varieties on total factor productivity (TFP) using French firm level data. Our strategy is to build an exact index of increase in varieties -using the Broda, Greenfield and Weinstein (2006) methodology. This index...

This paper develops a framework for studying the general equilibrium effects of endogenous quality upgrading, a new margin of trade, on the welfare impact of trade liberalization. Unlike Fajgelbaum et al. (2011) which studies the effect of non homothetic preferences on output quality and...

A recent theoretical literature has emphasized the importance of multiproduct firms in trade. However, models within this literature have reached contradictory conclusions regarding the product-level response of firms to changes in trade costs. This paper attempts to resolve these contradictions...

Recent works in trade theory and related empirical studies have drawn a revised picture of trade patterns: international specialisation has been proved to take place within products, across varieties, rather than across products or across industries. Systematising this repeated empirical...

Recent research in international trade emphasizes the importance of firms extensive margins for understanding overall patterns of trade as well as how firms respond to specific events such as trade liberalization. In this paper, we use detailed U.S. trade statistics to provide a broad overview...

Since the seminal work of Krugman, product variety has played a central role in models of trade and growth. In spite of the general use of love-of-variety models, there has been no systematic study of how the import of new varieties has contributed to national welfare gains in the United States....

Most macroeconomic models imply that faster output growth tends to lower a country's trade balance by raising its imports with little change to its exports. Krugman (1989) proposed a model in which countries grow by producing new varieties of goods. In his model, faster-growing countries are...