We formalize the GATT/WTO principle of reciprocity in workhorse quantitative trade models, characterizing reciprocal tariff cuts that hold terms of trade fixed and investigating their labor-market impacts. We provide closed-form expressions mapping reciprocal tariff cuts to labor market...

Trade between the whole of Africa and China (imports and exports summed) grew from $10.6 billion to $73.3 billion between 2000 and 2007, and between Sub-Saharan Africa and China from $7 billion to $59 billion over the same period. China is now Africa's third largest trading partner behind the EU...

Global innovation and entrepreneurship has traditionally been dominated by a handful of high-income countries, especially the US. This paper investigates the international consequences of the rise of a new hub for innovation, focusing on the dramatic growth of high-potential entrepreneurship and...

We construct a dynamic general equilibrium model of foreign direct investment (FDI) and foreign technology adoption, incorporating adoption barriers, international technology spillover, and relative price advantages. A higher FDI conversion efficacy, a lower adoption barrier, or a stronger...

We study the global innovation and diffusion of ideas by introducing trade into the model in Eaton and Kortum (1999) (EK). This extension allows us to use international trade flows and country-level factor costs to estimate both the intensity of innovation within countries over time and...

The U.S. opioid crisis is now driven by fentanyl, a powerful synthetic opioid that currently accounts for 90% of all opioid deaths. Fentanyl is smuggled from abroad, with little evidence on how this happens. We show that a substantial amount of fentanyl smuggling occurs via legal trade flows,...

We investigate the phenomenon of trade re-allocations across countries as a result of the U.S.- China trade war. Using quarterly data on U.S. imports, we find evidence, as do others, of trade diversion in a range of industries and products, including products not targeted by U.S. tariffs on...

Monetary and fiscal policies require coordination to achieve desired macroeconomic outcomes. The literature since Leeper (1991) has focused on two regimes: monetary dominance and fiscal dominance. In both cases, one policy is active while the other is passive and accommodates the former. We...

We use the 2018-2019 U.S. trade war to examine how supply chains adjustments to a tariff cost shock affect imports and exports. Using confidential firm-trade linked data, we show that the decline in imports of tariffed goods was driven by discontinuations of U.S. buyer-foreign supplier...