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Adjustment of Commercial Bank's Interest Rates and the Effectiveness of Monetary Policy in South Africa

Meshach Aziakpono (), Magdalene Wilson and Jason Manuel ()
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Jason Manuel: Rhodes University

The African Finance Journal, 2007, vol. 9, issue 1, 1-20

Abstract: The study uses the asymmetric error correction model as in Scholnick (1996) and two wholesale bank interest rates (prime interbank lending and the negotiable certificate of deposit rates), to examine how market interest rates adjust to changes in the SARB official rate under different policy regimes in South Africa. The study covered the period between 1973 and 2004, which was divided into six sub-periods to reflect the different monetary policy regimes in South Africa. The results indicate a varying degree of adjustment under the different regimes, but clearly show that there was greater speed of adjustment under regimes that stress more market-oriented policies as opposed to control measures. The response of market Interest rates to monetary policy was quick and with high magnitude which suggest a fairly efficient money market. The evidence on the asymmetric adjustment was weak. On the whole, the results of this study suggest that a market-oriented policy would be more effective in transmitting the effects of the Bank’s monetary policy stance to the rest of the economy.

Keywords: Asymmetric Error Correction Model; Interest Rate Adjustment; Monetary Policy; South Africa (search for similar items in EconPapers)
JEL-codes: C32 E52 (search for similar items in EconPapers)
Date: 2007
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