Customs data reveal heterogeneity and granularity of relationships among buyers and sellers. A key insight is how more exports to a destination break down into more firms selling there and more buyers per exporter. We develop a quantitative general equilibrium model of firm-to-firm matching...

Climate policies vary widely across countries, with some countries imposing stringent emissions policies and others doing very little. When climate policies vary across countries, energy-intensive industries have an incentive to relocate to places with few or no emissions restrictions, an effect...

We derive the optimal unilateral policy in a general equilibrium model of trade and climate change where one region of the world imposes a climate policy and the rest of the world does not. A climate policy in one region shifts activities—extraction, production, and consumption—in the other...

We develop a parsimonious model of innovating firms rich enough to confront firm-level evidence. It captures the dynamic behavior of individual heterogeneous firms, describes the evolution of an industry with simultaneous entry and exit, and delivers a general equilibrium model of technological...

This paper examines the response of industries and firms to changes in trade costs. Several new firm-level models of international trade with heterogeneous firms predict that industry productivity will rise as trade costs fall due to the reallocation of activity across plants within an industry....

This paper examines the role of international trade in the reallocation of U.S. manufacturing activity within and across industries from 1977 to 1997. It introduces a new measure of industry exposure to international trade, motivated by the Heckscher-Ohlin model, which focuses on where imports...

This paper uses unique Finnish firm-level micro data on service imports, workforce composition, and firm characteristics to examine changes in employment composition and performance of Finnish service importers during a period of a significant increase in services imports (2002-2012). We use...

This paper argues that developing Asia is overlooking an opportunity for increased growth and development through trade in business services. Developing Asia would benefit from liberalizing services trade as it has benefited from liberalizing goods trade. This argument rests on these key...

The Transatlantic Trade and Investment Partnership (TTIP) was launched with highest of ambitions. Yet after more than 500 days of negotiations, the results are plainly discouraging. The EU and the US misunderstood each other's intention on market access, and deteriorated into retaliatory...

This paper uses unique Finnish firm-level micro data on service imports, work-force composition, and firm characteristics to examine changes in employment composition and performance of Finnish service importers during a period of a significant increase in services imports (2002-2012). We use...