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Working Paper
Sharing Asymmetric Tail Risk: Smoothing, Asset Prices and Terms of Trade
Crises and tail events have asymmetric effects across borders, raising the value of arrangements improving insurance of macroeconomic risk. Using a two-country DSGE model, we provide an analytical and quantitative analysis of the channels through which countries gain from sharing (tail) risk. Riskier countries gain in smoother consumption but lose in relative wealth and average consumption. Safer countries benefit from higher wealth and better average terms of trade. Calibrated using the empirical distribution of moments of GDP-growth across countries, the model suggests non-negligible ...
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Competitive devaluations: a welfare-based approach
This paper studies the mechanism of international transmission of exchange rate shocks within a three-country Center-Periphery model, providing a choice-theoretic framework for the policy analysis and empirical assessment of competitive devaluations. If relative prices and terms of trade exhibit some flexibility conforming to the law of one price, a devaluation by one country is beggar-thy-neighbor relative to another country through its effects on cost-competitiveness in a third market. Yet, due to direct bilateral trade between the two countries, there is a large range of parameter values ...
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Productivity spillovers, terms of trade, and the "home market effect"
This paper analyzes the welfare implications of international spillovers related to productivity gains, changes in market size, or government spending. We introduce trade costs and endogenous varieties in a two-country general-equilibrium model with monopolistic competition, drawing a distinction between productivity gains from manufacturing efficiency and those related to firms' lower cost of entry or product differentiation. Our model suggests that countries with lower manufacturing costs have higher GDP but supply a smaller number of goods at a lower international price. Countries with ...
Working Paper
Social Distancing and Supply Disruptions in a Pandemic
Drastic public health measures such as social distancing or lockdowns can reduce the loss of human life by keeping the number of infected individuals from exceeding the capacity of the health care system but are often criticized because of the social and the economic cost they entail. We question this view by combining an epidemiological model, calibrated to capture the spread of the COVID-19 virus, with a multisector model, designed to capture key characteristics of the U.S. Input Output Tables. Our two-sector model features a core sector that produces intermediate inputs not easily replaced ...
Working Paper
DSGE models of high exchange-rate volatility and low pass-through
This paper develops a quantitative, dynamic, open-economy model which endogenously generates high exchange rate volatility, whereas a low degree of pass-through stems from both nominal rigidities (in the form of local currency pricing) and price discrimination. We model real exchange rate volatility in response to real shocks by reconsidering and extending two approaches suggested by the quantitative literature (one by Backus Kehoe and Kydland [1995], the other by Chari, Kehoe and McGrattan [2003]), within a common framework with incomplete markets and segmented domestic economies. Our model ...
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The simple geometry of transmission and stabilization in closed and open economies
This paper provides an introduction to the recent literature on macroeconomic stabilization in closed and open economies. We present a stylized theoretical framework, illustrating its main properties with the help of an intuitive graphical apparatus. Among the issues we discuss are optimal monetary policy and the welfare gains from macroeconomic stabilization, the international transmission of real and monetary shocks and the role of exchange rate pass-through, and the design of optimal exchange rate regimes and monetary coordination among interdependent economies.
Working Paper
The Euro Crisis in the Mirror of the EMS: How Tying Odysseus to the Mast Avoided the Sirens but Led Him to Charybdis
Why was recovery from the euro area crisis delayed for a decade? The explanation lies in the absence of credible and timely policies to backstop financial intermediaries and sovereign debt markets. In this paper we add light and color to this analysis, contrasting recent experience with the 1992-3 crisis in the European Monetary System, when national central banks and treasuries more successfully provided this backstop. In the more recent episode, the incomplete development of the euro area constrained the ability of the ECB and other European institutions to do likewise.
Working Paper
The international dimension of productivity and demand shocks in the U.S. economy
Identifying productivity and real demand shocks in the US with sign restrictions based on standard theory, we provide evidence on real and financial channels of their international propagation. Productivity gains in US manufacturing have substantial macroeconomic effects, raising US consumption, investment and the terms of trade, relative to the rest of the world, while lowering US net exports. Significant international financial adjustment occurs via a rise in the global value of the US stock market, portfolio shifts in US foreign assets and liabilities, and especially real dollar ...
Working Paper
Macroeconomics of international price discrimination
This paper builds a baseline two-country model of real and monetary transmission under optimal international price discrimination. Distributing traded goods to consumers requires nontradables; because of distributive trade, the price elasticity of export demand depends on the exchange rate. Profit-maximizing monopolistic firms drive a wedge between wholesale and retail prices across countries. This entails possibly large deviations from the law of one price and incomplete pass-through on import prices. Yet, consistent with expenditure-switching effects, a nominal depreciation generally ...
Working Paper
Optimal monetary policy in open economies
Research in the international dimensions of optimal monetary policy has long been inspired by a set of fascinating questions, shaping the policy debate in at least two eras of progressive cross-border integration of goods, factors, and assets markets in the years after World War I and from Bretton Woods to today. Namely, should monetary policy respond to international variables such as exchange rates, global business cycle conditions, or global imbalances beyond their in uence on the domestic output gap and inflation? Do exchange rate movements have desirable stabilization and allocative ...