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Working Paper
International Trade of Essential Goods During a Pandemic
This paper studies the role of international trade of essential goods during a pandemic. We consider a multi-country, multi-sector model with essential and non-essential goods. Essential goods provide utility relative to a reference consumption level, and a pandemic consists of an increase in this reference level. Each country produces domestic varieties of both types of goods using capital and labor subject to sectoral adjustment costs, and all varieties are traded internationally subject to trade barriers. We study the role of international trade of essential goods in mitigating or ...
Working Paper
International Trade of Essential Goods During a Pandemic
This paper studies the role of international trade of essential goods during a pandemic. We consider a multi-country multi-sector model with essential and non-essential goods. Essential goods provide utility relative to a reference consumption level, and a pandemic consists of an increase in this reference level. Each country produces domestic varieties of both types of goods using capital and labor subject to sectoral adjustment costs, and all varieties are traded internationally subject to trade barriers. We study the role of international trade of essential goods in mitigating or ...
Report
Import competition and household debt
We analyze the effect of import competition on household balance sheets from 2000 to 2007 using individual data on consumer finances. We exploit variation in exposure to foreign competition using industry-level shipping costs and initial differences in regions? industry specialization. We show that household debt increased significantly in regions where manufacturing industries are more exposed to import competition. A one standard deviation increase in exposure to import competition explains 30 percent of the cross-regional variation in household leverage growth, and is mostly driven by home ...
Working Paper
COVID-19 Time-Varying Reproduction Numbers Worldwide: An Empirical Analysis of Mandatory and Voluntary Social Distancing
This paper estimates time-varying COVID-19 reproduction numbers worldwide solely based on the number of reported infected cases, allowing for under-reporting. Estimation is based on a moment condition that can be derived from an agent-based stochastic network model of COVID-19 transmission. The outcomes in terms of the reproduction number and the trajectory of per-capita cases through the end of 2020 are very diverse. The reproduction number depends on the transmission rate and the proportion of susceptible population, or the herd immunity effect. Changes in the transmission rate depend on ...
Discussion Paper
Taking Stock: Dollar Assets, Gold, and Official Foreign Exchange Reserves
Global central banks and finance ministries held nearly $12 trillion of foreign exchange reserves as of the end of 2023, with nearly $7 trillion composed of U.S. dollar assets. Nevertheless, a narrative has emerged that an observed decline in the share of dollar assets in official reserve portfolios represents the leading edge of the dollar’s loss of status in the international monetary system. Some market participants have similarly linked the apparent increase in official demand for gold in recent years to a desire to diversify away from the U.S. dollar. Drawing on recent research and ...
Working Paper
Shortages of Critical Goods in a Global Economy: Optimal Trade and Industrial Policy
This paper studies optimal trade and industrial policy in response to shortages of critical goods following global shocks. We develop a dynamic open-economy model with essential and non-essential goods, heterogeneous households, and incomplete financial markets. When global demand for essential goods rises, households fail to internalize how their borrowing choices affect aggregate interest rates, leading to excessive discounting of future returns and underinvestment. Trade amplifies shortages as producers reallocate supply toward exports. Calibrated to the U.S. during COVID-19, the model ...
Working Paper
Managing Capital Flows in the Presence of External Risks
We introduce external risks, in the form of shocks to the level and volatility of world interest rates, into a small open economy model subject to the risk of sudden stops?large recessions together with abrupt reversals in capital inflows| and characterize optimal macroprudential policy in response to these shocks. In the model, collateral constraints create a pecuniary externality that leads to "overborrowing" and sudden stops that arise when the constraints bind. The typical sudden stop generated by the model replicates existing empirical evidence for emerging market economies: Low and ...
Working Paper
Shortages of Critical Goods in a Global Economy: Optimal Trade and Industrial Policy
This paper studies shortages of critical goods in a global economy and the role for policy. We develop a dynamic general equilibrium model of trade with producers of essential and non-essential goods owned by heterogeneous households under incomplete markets. A global increase in demand for critical goods increases prices and production, but there is underinvestment relative to an economy with a representative household or complete markets. Trade exacerbates the shock as producers reallocate domestic sales toward exports. Shortages can be mitigated, increasing welfare, by taxing exports while ...
Working Paper
Shortages of Critical Goods in a Global Economy: Optimal Trade and Industrial Policy
This paper studies the role for optimal trade and industrial policy to mitigate shortages of critical goods following global shocks. We develop a dynamic model of trade with producers of essential and non-essential goods owned by heterogeneous households under incomplete markets. Shocks that increase global demand for critical goods lead to underinvestment relative to an economy with a representative household or complete markets. Trade exacerbates the shock as producers reallocate domestic sales toward exports. Shortages can be mitigated, increasing welfare, by taxing exports while ...
Working Paper
Global Inflation, Regional Factors
This paper shows that global inflation dynamics have a sizable regional component. Using a balanced panel of 61 countries that starts in 1970, we document that while the global factor, defined as the dominant principal component, explains a large portion of inflation variation in advanced economies, a model with only one principal component is less successful for developing countries. By contrast, a hierarchical dynamic factor model, which includes a global (unconstrained) factor and regional (restricted) factors, performs substantially better for emerging market and developing economies. The ...