Title: The exchange rate and purchasing power parity: extending the theory and tests
Authors: Apte, P ×
Sercu, Piet
Uppal, R #
Issue Date: Jun-2004
Publisher: Elsevier sci ltd
Series Title: Journal of international money and finance vol:23 issue:4 pages:553-571
Abstract: This paper analyzes the exchange rate in a "no-arbitrage" or "real business cycle" equilibrium model and provides empirical evidence for this model vis-a-vis PPP. Our contribution is to show, based on a generalization of the equilibrium model of exchange rates, that (i) the test equation linking the exchange rate to fundamentals should allow for international heterogeneity in time preferences and risk attitudes, as well as noise-that is, the model should not be tested as an exact relation; (ii) empirical work should use levels of variables rather than first differences; and (iii) tests on the existence of long-run relations should be complemented by test on the signs of the coefficients. Our empirical work shows that, as a long-run relation, the generalized model outperforms PPP; moreover, under the generalized model, quarterly deviations from the estimated long-term relation have a half-life of only four to five quarters. (C) 2004 Elsevier Ltd. All rights reserved.
ISSN: 0261-5606
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Center International Finance, Leuven
× corresponding author
# (joint) last author

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