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CBN Journal of Applied Statistics (JAS)

Keywords

Monetary policy, nonlinear, smooth transition autoregressive model, stock prices

Abstract

This paper examines the nonlinear effect of monetary policy decisions on the performance of the Nigerian Stock Exchange market, by employing the Smooth Transition Autoregressive (STAR) model on monthly data from 2013 M4 to 2019 M12 for the All Share Index and monetary policy instrument. This study considers the two regimes characterizing the stock market, which are the lower regime (the bear market) and the upper regime (the bull market). The results show evidence of nonlinear effect of monetary policy on the stock exchange market. Monetary policy rate, money supply, lagged monetary policy rate and lagged treasury bill rate are found to have significant positive effects on the stock exchange market in the lower regime while current treasury bill rate shows a negative effect. In the upper regime, the money supply and lagged treasury bill rate have significant negative effects on the stock market. The current treasury bill rate is found to have a positive effect on the stock exchange market. It is recommended that the Central Bank of Nigeria should maintain a stable money supply growth that is consistent with increased activities in the Nigerian stock market.

Author Bio

The authors are staff of Ahmadu Bello University Zaria and Ibn Haldun University, Turkey respectively.

Publication Title

CBN Journal of Applied Statistics

Issue

No. 1

Volume

Vol. 12

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