We propose an exchange rate model that can explain both the observed volatility and the persistence of real and nominal exchange rate movements and thus in some measure resolves Rogoff’s (1996) purchasing power parity puzzle. Our analysis reconciles the well-known difficulties in beating the...

Tests of the null hypothesis of stationarity against the unit root alternative play an increasingly important role in empirical work in macroeconomics and in international finance. We show that the use of conventional asymptotic critical values for stationarity tests may cause extreme size...

The half-life of deviations from purchasing power parity (PPP) plays a central role in the ongoing debate about the ability of macroeconomic models to account for the time series behaviour of the real exchange rate. The main contribution of this paper is a general framework in which alternative...

International restaurant franchise price data are used to examine purchasing power parity and the behavior of the Mexican peso. Sample data are from El Paso, Texas and Ciudad Juarez, Mexico. A battery of statistical tests indicate that the price ratio and the exchange rate are statistically...

A set of error correction models are proposed for the nominal exchange rate between the Mexican peso and the United States dollar. The basic theoretical frameworks utilize balance of payment and monetary model constructs. Empirical estimation results are fairly weak for both specifications...

U.S. retail food price increases in recent years may seem large in nominal terms, but after adjusting for inflation have been quite modest even after the change in U.S. biofuel policies in 2006. In contrast, increases in the real prices of corn, soybeans, wheat and rice received by U.S. farmers...

Motivated by policy statements of central bankers, we propose to regard the central banker as a risk manager who aims at containing inflation and the deviation of output from potential within pre-specified bounds. We develop formal tools of risk management that may be used to quantify the risks...

Sign restrictions on the responses generated by structural vector autoregressive models have been proposed as an alternative approach to the use of exclusion restrictions on the impact multiplier matrix. In recent years such models have been increasingly used to identify demand and supply shocks...

Since Bernanke, Gertler and Watson (1997), a common view in the literature has been that systematic monetary policy responses to the inflation triggered by oil price shocks are an important source of aggregate fluctuations in the U.S. economy. We show that there is no evidence of systematic...

A standard monetary infaltion model is expanded to include import and labor costs in a theoretically logical manner. Implications for estimation are discussed, with special attention given to developing country data concerns. Care is taken to discuss model development within the historical...