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The effectiveness of official intervention in foreign exchange market in Malawi

  • Simwaka, Kisu

The Malawi Kwacha was floated in February 1994. Since then, the Reserve Bank of Malawi has periodically intervened in the foreign exchange market. This paper analyses the effectiveness of foreign exchange market interventions carried out by the Reserve Bank of Malawi. We use a GARCH (1, 1) model to simultaneously estimate the effect of intervention on the mean and volatility of the Malawi kwacha. Using monthly exchange rates and official intervention data from January 2002 to February 2006, the empirical results suggest that intervention activities of the Reserve Bank of Malawi affect the kwacha. In line with similar findings elsewhere in the literature, the paper finds that net sales of dollars by the Reserve Bank of Malawi depreciate, rather than appreciate, the kwacha. This effect is very small, however. Moreover, the paper also finds that the Reserve Bank of Malawi intervention reduces the volatility of the kwacha. This shows that the Reserve Bank actually achieves its objective of smoothing out fluctuations of the kwacha. This can be evidenced by the stability of the kwacha during a greater part of 2004. Thus intervention is, to some extent, used as an effective tool for moderating fluctuations of the kwacha. However, its effectiveness is constrained by the amounts of foreign exchange reserves, which are usually low.

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 1123.

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Date of creation: 20 Nov 2006
Date of revision:
Handle: RePEc:pra:mprapa:1123
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  1. Reeves, Silke Fabian, 1997. "Exchange rate management when sterilized interventions represent signals of monetary policy," International Review of Economics & Finance, Elsevier, vol. 6(4), pages 339-360.
  2. Bonser-Neal, Catherine & Tanner, Glenn, 1996. "Central bank intervention and the volatility of foreign exchange rates: evidence from the options market," Journal of International Money and Finance, Elsevier, vol. 15(6), pages 853-878, December.
  3. Jonathan Kearns & Roberto Rigobon, 2002. "Identifying the Efficacy of Central Bank Interventions: The Australian Case," NBER Working Papers 9062, National Bureau of Economic Research, Inc.
  4. Dominguez, Kathryn M., 1998. "Central bank intervention and exchange rate volatility1," Journal of International Money and Finance, Elsevier, vol. 17(1), pages 161-190, February.
  5. Rogers, J. M. & Siklos, P. L., 2003. "Foreign exchange market intervention in two small open economies: the Canadian and Australian experience," Journal of International Money and Finance, Elsevier, vol. 22(3), pages 393-416, June.
  6. Kim, Suk-Joong & Sheen, Jeffrey, 2002. "The determinants of foreign exchange intervention by central banks: evidence from Australia," Journal of International Money and Finance, Elsevier, vol. 21(5), pages 619-649, October.
  7. Kim, Soyoung, 2003. "Monetary policy, foreign exchange intervention, and the exchange rate in a unifying framework," Journal of International Economics, Elsevier, vol. 60(2), pages 355-386, August.
  8. Beine, Michel & Benassy-Quere, Agnes & Lecourt, Christelle, 2002. "Central bank intervention and foreign exchange rates: new evidence from FIGARCH estimations," Journal of International Money and Finance, Elsevier, vol. 21(1), pages 115-144, February.
  9. Dominguez, Kathryn M & Frankel, Jeffrey A, 1993. "Does Foreign-Exchange Intervention Matter? The Portfolio Effect," American Economic Review, American Economic Association, vol. 83(5), pages 1356-69, December.
  10. repec:syd:wpaper:99-05 is not listed on IDEAS
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