A puzzle in international macroeconomics is that observed real exchange rates are highly volatile. Standard international real business cycle (IRBC) models cannot reproduce this fact. We show that TFP processes for the U.S. and the ""rest of the world,"" is characterized by a vector error...

Intro -- Contents -- I. BACKGROUND -- II. A THEORETICAL MODEL OF THE TRADE BALANCE -- A. The Consumer's Problem -- B. The Firm's Problem -- C. The Government's Problem -- D. The Bank's Problem -- E. Import and Export Market Clearing -- F. The Trade Balance -- G. The Exchange Rate -- III. THE...

If sectoral trade flows obey structural gravity, countries' bilateral trade imbalances are the result of macro trade imbalances, "triangular trade", or pairwise asymmetric trade barriers. Using data for 40 major economies and the Rest of the World, we show that large and pervasive asymmetries in...

Univariate studies of the hypothesis of unit roots in real exchange rates have yielded consensus point estimates of the half-life of deviations from purchasing power parity of between three to five years. However, least squares-based estimates of half-lives are biased downward. Accordingly, we...

This paper examines whether deviations from PPP are stationary in the presence of nonlinearity, and whether the adjustment toward PPP is symmetric from above and below. Using alternative nonlinear models, our results support mean reversion and asymmetric adjustment dynamics. We find differences...

There is good reason and much evidence to suggest that the real exchange rate matters for economic growth, but why? The "Washington Consensus" (WC) view holds that real exchange rate misalignment implies macroeconomic imbalances that are themselves bad for growth. In contrast, Rodrik (2008)...

This paper introduces a time-varying threshold autoregressive model (TVTAR), which is used to examine the persistence of deviations from PPP. We find support for the stationary TVTAR against the unit root hypothesis; however, for some developing countries, we do not reject the TVTAR with a unit...

Consensus estimates put the half-life of deviations from purchasing power parity (PPP) at about four years (Rogoff, 1996). However, conventional least squares estimates of half-lives are biased downward. Accordingly, as a preferred measure of the persistence of real exchange rate shocks, this...

Intro -- Contents -- I. INTRODUCTION -- II. THE MACROECONOMIC BALANCE APPROACH -- III. THE EXTENDED PPP APPROACH: SINGLE-COUNTRY ESTIMATES -- IV. THE EXTENDED PPP APPROACH: PANEL DATA ESTIMATES -- V. CONCLUDING REMARKS -- APPENDIX. METHODOLOGICAL DIFFICULTIES OF DEALING WITH SLOPE HETEROGENEITY...