How large are optimal tariffs? What tariffs would prevail in a worldwide trade war? How costly would be a breakdown of international trade policy cooperation? And what is the scope for future multilateral trade negotiations? I address these and other questions using a unified framework which...

Whether governments clash in trade disputes or negotiate over trade agreements, their actions in the international arena reflect political conditions back home. Previous studies of cooperative and noncooperative trade relations have focused on governments that are immune from political pressures...

I review evidence of rising policy uncertainty in the U.S. and global economies, drawing heavily on newspaper-based measures. Examples from countries around the world illustrate the role of political and policy developments as drivers of fluctuations in economic uncertainty. I also highlight the...

The long-run costs and benefits of social insurance expansions may not be realized until a program has been in place through a cycle of boom, bust, and recovery. In the case of the Affordable Care Act (ACA), the arrival of the program's inaugural bust and recovery have been hastened by the...

In June 2020, we surveyed 2,516 Americans regarding their preferences for both short- and long-term expansions to government-provided healthcare and unemployment insurance programs. We find that support for such programs is positively associated with (a) COVID-19 deaths and infections in the...

Two closely related numerical general equilibrium models of world trade are used to analyze the potential consequences of US-China bilateral retaliation on trade flows and welfare. One is a conventional Armington trade model with five regions, the US, China, EU, Japan and Rest of the World, and...

This paper tries to make sense of the recent trade dispute between the U.S. and Japan in autos and auto parts. The paper argues that there are structural differences between the way that the auto industries are organized in the U.S. and Japan, and that these differences have contributed to the...

The 2008 financial crisis did not precipitate global retaliatory trade intervention, in seeming contrast to the Great Depression in 1930s. This paper discusses the influence of model structure in optimal tariff (OT) calculations in explaining this puzzle. We emphasize how earlier literature...

This paper explores the impacts of the Trump administration's trade policy on prices and welfare. Over the course of 2018, the U.S. experienced substantial increases in the prices of intermediates and final goods, dramatic changes to its supply-chain network, reductions in availability of...

Formal economic analysis of trade agreements typically treats disputes as synonymous with concerns about enforcement. But in reality, most WTO disputes involve disagreements of interpretation concerning the agreement, or instances where the agreement is simply silent. And some have suggested...