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Food prices and long-run purchasing power parity in Africa

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  • Joseph Kargbo

Abstract

The purchasing power parity (PPP) theory is a cornerstone of exchange rate models in international economics. PPP is very important for two main reasons: first, it can serve as a prediction model for exchange rates, and second, it can serve as a benchmark in judging the level of exchange rate movements. This article utilised the Johansen cointegration technique in examining whether or not there is empirical support for long-run PPP in Africa. Annual data were used for exchange rates and food price indices in 25 countries covering the 1958-97 period. The empirical evidence showed strong support for long-run PPP in Africa, thereby providing wider acceptance for the applicability of PPP in exchange rate and other macroeconomic adjustment policies.

Suggested Citation

  • Joseph Kargbo, 2003. "Food prices and long-run purchasing power parity in Africa," Development Southern Africa, Taylor & Francis Journals, vol. 20(3), pages 321-336.
    • Handle: RePEc:taf:deveza:v:20:y:2003:i:3:p:321-336
    DOI: 10.1080/0376835032000108158
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    References listed on IDEAS

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    1. Nagayasu, Jun, 2002. "Does the Long-Run PPP Hypothesis Hold for Africa? Evidence from a Panel Cointegration Study," Bulletin of Economic Research, Wiley Blackwell, vol. 54(2), pages 181-187, April.
    2. Mr. Michel Galy & Mr. Michael T. Hadjimichael, 1997. "The CFA Franc Zone and the EMU," IMF Working Papers 1997/156, International Monetary Fund.
    3. Davidson, Russell & MacKinnon, James G., 1993. "Estimation and Inference in Econometrics," OUP Catalogue, Oxford University Press, number 9780195060119.
    4. Mr. Noureddine Krichene, 1998. "Purchasing Power Parities in Five East African Countries: Burundi, Kenya, Rwanda, Tanzania, and Uganda," IMF Working Papers 1998/148, International Monetary Fund.
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    1. Chi-Wei Su & Tsangyao Chang & Yu-Shao Liu, 2012. "Revisiting purchasing power parity for African countries: with nonlinear panel unit-root tests," Applied Economics, Taylor & Francis Journals, vol. 44(25), pages 3263-3273, September.
    2. Jean-Francois Hoarau, 2010. "Does long-run purchasing power parity hold in Eastern and Southern African countries? Evidence from panel data stationary tests with multiple structural breaks," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 15(4), pages 307-315.
    3. Arize, Augustine C. & Malindretos, John & Nam, Kiseok, 2010. "Cointegration, dynamic structure, and the validity of purchasing power parity in African countries," International Review of Economics & Finance, Elsevier, vol. 19(4), pages 755-768, October.
    4. Njindan Iyke , Bernard & Odhiambo, Nicholas M., 2015. "A re-examination of long-run Purchasing Power Parity (PPP) hypothesis: the case of two Southern African countries," Working Papers 18980, University of South Africa, Department of Economics.
    5. Andrew Phiri, 2017. "Nonlinear adjustment effects in the purchasing power parity," Journal of Economics and Econometrics, Economics and Econometrics Society, vol. 60(2), pages 14-38.
    6. Kargbo, Joseph M., 2003. "Cointegration Tests of Purchasing Power Parity in Africa," World Development, Elsevier, vol. 31(10), pages 1673-1685, October.
    7. E. N. Gyamfi & E. F. Appiah, 2019. "Further evidence on the validity of purchasing power parity in selected African countries," Journal of Economics and Finance, Springer;Academy of Economics and Finance, vol. 43(2), pages 330-343, April.
    8. Paul Alagidede & George Tweneboah & Anokye M. Adam, 2008. "Nominal Exchange Rates and Price Convergence in the West African Monetary Zone," International Journal of Business and Economics, School of Management Development, Feng Chia University, Taichung, Taiwan, vol. 7(3), pages 181-198, December.
    9. Phiri, Andrew, 2014. "Purchasing power parity (PPP) between South Africa and her main currency exchange partners: Evidence from asymmetric unit root tests and threshold co-integration analysis," MPRA Paper 53659, University Library of Munich, Germany.

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