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Spillovers and Spillbacks
We study international monetary policy spillovers and spillbacks in a tractable two-country Heterogeneous Agent New Keynesian model. Relative to Representative Agent (RANK) models, our framework introduces a precautionary-savings channel, as households in both countries face uninsurable income risk, and a real-income channel, as households have heterogeneous marginal propensities to consume (MPC). While both channels amplify the size of spillovers/spillbacks, only precautionary savings can change their sign relative to RANK. Spillovers are likely to be larger in economies with higher ...
Report
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 ...
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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.
Discussion Paper
Monetary Policy Spillovers and the Role of the Dollar
In the literature on monetary policy spillovers considered in the two previous posts, countries that would otherwise operate independently are connected to one another through bilateral trade relationships, and it is assumed that there are no frictions in currency, financial, and asset markets. But what if we introduce a number of real-world complexities, such as a dominant global currency and tight linkages across international capital markets? Given these additional factors, is it still possible to draw generalized conclusions about international policy spillovers—and can we still think ...
Report
Would protectionism defuse global imbalances and spur economic activity?: a scenario analysis
In the evolving analysis of global imbalances, the possibility that countries will resort to increased protectionism is often mentioned but rarely analyzed. This paper attempts to fill that gap, examining the macroeconomic implications of a shift to protectionist policies through the lens of a dynamic general equilibrium model of the world economy that encompasses four regional blocs. Simulation exercises are carried out to assess the consequences of imposing uniform and discriminatory tariffs on trading partners as well as the consequences of tariff retaliation. We also discuss a scenario in ...
Discussion Paper
Monetary Policy Spillovers in the Global Economy
Understanding cross-border interdependencies and inspecting the international transmission mechanism of policy shocks is the raison d’être of open-economy macroeconomics as an intellectual discipline. The relevance for the policy debate is pervasive: over and over in the history of the international monetary system national policymakers have pointed at — and voiced concerns about—the effects of policy actions undertaken in foreign countries on the outlook and financial conditions in their own domestic economies. The most recent example involves the spillovers of tighter monetary ...
Journal Article
The economics of currency crises and contagion: an introduction
Two theories of the causes of currency crises prevail in the economic literature. The first traces currency instability to countries' structural imbalances and weak policies; the second identifies arbitrary shifts in market expectations as the principal source of instability. The authors of this article contend that only a synthesis of these theories can capture the complexity of the 1997-98 Asian currency crisis. In their view, the crisis resulted from the interaction of structural weaknesses and volatile international capital markets. The authors also cite two other factors that contributed ...
Discussion Paper
How Easy Is It to Forecast Commodity Prices?
Over the last decade, unprecedented spikes and drops in commodity prices have been a recurrent source of concern to both policymakers and the general public. Given all the recent attention, have economists and analysts made any progress in their ability to predict movements in commodity prices? In this post, we find there is no easy answer. We consider different strategies to forecast near-term commodity price inflation, but find that no particular approach is systematically more accurate and robust. Additionally, the results warn against interpreting current forecasts of commodity prices ...
Discussion Paper
The Perplexing Co-Movement of the Dollar and Oil Prices
Oil prices and the exchange rate of the U.S. dollar against the euro have often moved together over the past decade or so, but it is not at all clear why they should. The standard interpretation of oil price movements as a response to global oil supply and demand shifts makes it unlikely that the correlation stems from the dollar’s effect on oil prices. In addition, the notorious difficulty in predicting currency moves makes it hard to believe that oil prices dictate the dollar’s value. Improbability aside, however, in this blog post we document the tendency for the value of the dollar to ...