Search Results
Conference Paper
Optimal fiscal and monetary policy: some recent results
Working Paper
Dynamics of the trade balance and the terms of trade: the S-curve
We provide a theoretical interpretation of two features of international data: the countercyclical movements in net exports and the tendency for the trade balance to be negatively correlated with current and future movements in the terms of trade, but positively correlated with past movements. We document these same properties in a two-country stochastic growth model in which trade fluctuations reflect, in large part, the dynamics of capital formation. We find that the general equilibrium perspective is essential: The relation between the trade balance and the terms of trade depends ...
Working Paper
Relative price movements in dynamic general equilibrium models of international trade
We examine the behavior of international relative prices from the perspective of dynamic general equilibrium theory, with particular emphasis on the variability of the terms of trade and the relation between the terms of trade and net exports. We highlight aspects of the theory that are critical in determining these properties, contrast our perspective with those associated with the Marshall-Lerner condition and the Harberger-Laursen-Metzler effect, and point out features of the data that have proved difficult to explain within existing dynamic general equilibrium models.
Working Paper
Asset Prices and Unemployment Fluctuations
Recent critiques have demonstrated that existing attempts to account for the unemployment volatility puzzle of search models are inconsistent with the procylicality of the opportunity cost of employment, the cyclicality of wages, and the volatility of risk-free rates. We propose a model that is immune to these critiques and solves this puzzle by allowing for preferences that generate time-varying risk over the cycle, and so account for observed asset pricing fluctuations, and for human capital accumulation on the job, consistent with existing estimates of returns to labor market experience. ...
Working Paper
On the Importance of Household versus Firm Credit Frictions in the Great Recession
Although a credit tightening is commonly recognized as a key determinant of the Great Recession, to date, it is unclear whether a worsening of credit conditions faced by households or by firms was most responsible for the downturn. Some studies have suggested that the household-side credit channel is quantitatively the most important one. Many others contend that the firm-side channel played a crucial role. We propose a model in which both channels are present and explicitly formalized. Our analysis indicates that the household-side credit channel is quantitatively more relevant than the ...
Working Paper
A Neoclassical Model of the World Financial Cycle
Emerging markets face large and persistent fluctuations in sovereign spreads. To what extent are these fluctuations driven by local shocks versus financial conditions in advanced economies? To answer this question, we develop a neoclassical business cycle model of a world economy with an advanced country, the North, and many emerging market economies, the South. Northern households invest in domestic stocks, domestic defaultable bonds, and international sovereign debt. Over the 2008-2016 period, the global cycle phase, the North accounts for 68% of Southern spreads' fluctuations. Over the ...
Conference Paper
The transition to a new economy after the Second Industrial Revolution
During the Second Industrial Revolution, 1860?1900, many new technologies, including electricity, were invented. After this revolution, however, several decades passed before these new technologies diffused and measured productivity growth increased. We build a quantitative model of technology diffusion which we use to study this transition to a new economy. We show that the model implies both slow diffusion and a delay in growth similar to that in the data. Our model casts doubt, however, on the conjecture that this experience is a useful parallel for understanding the productivity paradox ...
Working Paper
The optimal degree of discretion in monetary policy
How much discretion should the monetary authority have in setting its policy? This question is analyzed in an economy with an agreed-upon social welfare function that depends on the randomly fluctuating state of the economy. The monetary authority has private information about that state. In the model, well-designed rules trade off society's desire to give the monetary authority discretion to react to its private information against society's need to guard against the time inconsistency problem arising from the temptation to stimulate the economy with unexpected inflation. Although this ...
Conference Paper
The optimal degree of monetary policy discretion
Report
Asking the right questions about the IMF
1998 Annual Report essay