This chapter reviews the new approach to international trade based on firm heterogeneity in
differentiated product markets. This approach explains a variety of features exhibited in …

This article reviews the empirical evidence on firm heterogeneity in international trade. A first
wave of empirical findings from microdata on plants and firms proposed challenges for …

This chapter focuses on the estimation and interpretation of gravity equations for bilateral
trade. This necessarily involves a careful consideration of the theoretical underpinnings …

Drawing on uncommonly rich and representative data from the Colombian manufacturing
census, this paper documents new empirical relationships between input prices, output …

This paper explores the impact of input trade liberalization on imported input and exported
product prices. Using Chinese transaction data for 2000–2006, we capture causal effects …

The unit values of internationally traded goods are heavily influenced by quality. We model
this in an extended monopolistic competition framework where, in addition to choosing price …

How do exporting firms react to sanctions? Specifically, which firms are willing—or capable—
to serve the market of a sanctioned country? We investigate this question for four sanctions …

This article establishes six stylized facts about firms' export prices using detailed customs
data on the universe of Chinese trade flows. First, across firms selling a given product …

Trade is a cornerstone concept in economics worldwide. This updated second edition of the
essential graduate textbook in international trade brings readers to the forefront of …

We conduct a randomized experiment that generates exogenous variation in the access to
foreign markets for rug producers in Egypt. Combined with detailed survey data, we causally …