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1. Exchange Rates and Fundamentals: A Generalization

Author:
James M. Nason and John H. Rogers
Publication Date:
09-2008
Content Type:
Working Paper
Institution:
Board of Governors of the Federal Reserve System
Abstract:
Exchange rates have raised the ire of economists for more than 20 years. The problem is that few, if any, exchange rate models are known to systematically beat a naive random walk in out of sample forecasts. Engel and West (2005) show that these failures can be explained by the standard-present value model (PVM) because it predicts random walk exchange rate dynamics if the discount factor approaches one and fundamentals have a unit root. This paper generalizes the Engel and West (EW) hypothesis to the larger class of open economy dynamic stochastic general equilibrium (DSGE) models. The EW hypothesis is shown to hold for a canonical open economy DSGE model. We show that all the predictions of the standard-PVM carry over to the DSGE-PVM. The DSGE-PVM also yields an unobserved components (UC) models that we estimate using Bayesian methods and a quarterly Canadian--U.S. sample. Bayesian model evaluation reveals that the data support a UC model that calibrates the discount factor to one implying the Canadian dollar--U.S. dollar exchange rate is a random walk dominated by permanent cross-country monetary and productivity shocks.
Topic:
Economics, Finance, and Exchange Rate Policy
Political Geography:
Global Focus

2. Expected Consumption Growth from Cross-Country Surveys: Implications for Assessing International Capital Markets

Author:
Charles Engel and John H. Rogers
Publication Date:
09-2008
Content Type:
Working Paper
Institution:
Board of Governors of the Federal Reserve System
Abstract:
Survey data show that the expected growth rates of consumption across countries vary widely and are not highly correlated. This data contradicts the simplest of open-economy models in which there is a freely traded non- state-contingent bond and purchasing power parity holds. We explore two alternative explanations for the finding: that households in each country in effect face different ex ante real interest rates or that there are significant credit constraints, so that expected consumption growth rates are driven largely by expected income growth. The empirical evidence strongly supports the latter hypothesis. These findings challenge the modeling of consumption that is at the heart of many, if not most, macroeconomic models.
Topic:
Economics, Finance, Interest Rates, and Credit
Political Geography:
Global Focus