An Empirical Test of Purchasing Power Parity in Selected African Countries - a Panel Data Approach
AbstractThe paper tests whether the theory of Purchasing Power Parity holds in a selected sample of twenty African countries. The paper employs a panel unit root test to test whether the real exchange rates in the panel are mean reverting or not. The test employed is the Im et al (1997) test. Results show that the null of a unit root is rejected for the three real exchange rate indices, namely, the import-based and trade-weighted multilateral indices, and the bilateral indices, while for the export-based indices, the null hypothesis is not rejected. That is, Purchasing Power Parity is confirmed for the import-based and trade-weighted multilateral indices, and the bilateral indices, while it is rejected for the export-based multilateral indices. After performing the demeaning adjustment to account for cross-sectional dependence, our results show that the null hypothesis of a unit root is rejected for the import-based multilateral indices and the bilateral indices, while the null is not rejected for the trade-weighted multilateral indices. Purchasing Power Parity is therefore only confirmed for the import-based multilateral indices and bilateral indices, while it is rejected for the trade-weighted multilateral indices.
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Bibliographic InfoPaper provided by University of Gothenburg, Department of Economics in its series Working Papers in Economics with number 39.
Length: 44 pages
Date of creation: 30 Apr 2001
Date of revision:
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Postal: Department of Economics, School of Business, Economics and Law, University of Gothenburg, Box 640, SE 405 30 GÖTEBORG, Sweden
Phone: 031-773 10 00
Web page: http://www.handels.gu.se/econ/
More information through EDIRC
Purchasing Power Parity; Real Exchange Rate; Africa; Panel Data;
Find related papers by JEL classification:
- C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
- F43 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Economic Growth of Open Economies
- O55 - Economic Development, Technological Change, and Growth - - Economywide Country Studies - - - Africa
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