MONETARY POLICY IN A SMALL OPEN ECONOMY: THE CASE OF MALAYSIA

This paper provides a case study to characterize the monetary policy regime in Malaysia, from a medium‐ and long‐term perspective. Specifically, we ask how the Central Bank of Malaysia, Bank Negara Malaysia (BNM), has structured its monetary policy regime, and how it has conducted monetary and exchange rate policy under the regime. By conducting three empirical analyses, we characterize the monetary and exchange rate policy regime in Malaysia by three intermediate solutions on three vectors: the degree of autonomy in monetary policy, the degree of variability of the exchange rate, and the degree of capital mobility.     

THE PREDICTABILITY OF STOCK MARKET RETURNS IN SOUTH AFRICA: PARAMETRIC VS. NON‐PARAMETRIC METHODS

This paper compares the forecasting performance of a sub‐class of univariate parametric and non‐parametric models in predicting stock market returns in South Africa. To account for conditional heteroskedasticity in stock returns data, the non‐parametric model is generated by the conditional heteroskedastic non‐linear autoregressive (NAR) model, while the parametric model is produced by the generalised autoregressive conditional heteroskedastic in mean (GARCH‐M) model. The results of the paper show that the NAR as a non‐parametric model performs better than the GARCH‐M model in short‐term forecasting horizon, and this indicates the importance of a distribution‐free model in predicting stock returns in South Africa.     

EXCHANGE MARKET PRESSURE,MONETARY POLICY,AND ECONOMIC GROWTH: ARGENTINA, 1993–2004

The exchange market pressure (EMP) against a currency has been frequently measured as the sum of the loss of international reserves plus the loss of nominal value of that currency. This paper follows the tradition of investigating the interactions between such a measure of EMP and monetary policy; but it also questions the usual omission of output growth in empirical investigations. The focus of this work is Argentina between 1993 and 2004. As in previous studies, we found some evidence of a positive and double‐direction relationship between EMP and domestic credit. But output growth also played a role in the determination of EMP, even more than domestic credit or interest rates. Also, there is some evidence that EMP affected growth negatively.     

THE TRANSMISSION OF MONETARY POLICY UNDER THE REPO SYSTEM IN SOUTH AFRICA: AN EMPIRICAL ANALYSIS♣

The study examines the influence of the repo rate on the interbank rate and analyses whether the transmission channels of interest rates have changed since the adjustment to the repo system in September 2001. The paper employs the Granger causality test using the ECM framework. The results suggest that the influence of the repo rate on the interbank rate was stronger before the adjustments to the system were made. The interbank rate and the repo rate were found to “reverse” roles in the period after the adjustments to the system. Our results show that the changes to the repo system in 2001 did not lead to the achievement of the intended transmission channel; instead it was found that the system in place before the changes were made was in fact already achieving the transmission path that the authorities hoped to accomplish by changing the system.     

REVISITING THE EFFICIENT MARKET HYPOTHESIS FOR AFRICAN COUNTRIES: PANEL SURKSS TEST WITH A FOURIER FUNCTION

This study applies the panel seeming unrelated regression of the Kapetanios‐Shin‐Snell (SURKSS) test with a Fourier function to investigate the time‐series properties of stock prices in five African countries (i.e. Egypt, Kenya, Morocco, South Africa and Tunisia) over the period of January 2000–April 2011. The empirical results from the univariate unit root and panel‐based unit root tests indicate that unit root hypothesis can not be rejected for these five countries under study. However, results from the panel SURKSS test with a Fourier function indicate that unit root hypothesis can be rejected for Egypt and Morocco, two countries under study. Our results indicate that the weak‐form efficient market hypothesis holds in the other three countries, namely, Kenya, South Africa and Tunisia.     

RISK–RETURN TRADE‐OFF AND BEHAVIOUR OF VOLATILITY ON THE SOUTH AFRICAN STOCK MARKET: EVIDENCE FROM BOTH AGGREGATE AND DISAGGREGATE DATA

The study analyses the nature and behaviour of volatility, the risk–return relationship and the long‐term trend of volatility on the South African equity markets using aggregate level, industrial level and sectoral level daily data for the period 1995‐2009. By employing dummy variables for the Asian and the sub‐prime financial crises and the 11 September political shock, the study further examines whether the long‐term trend of volatility structurally breaks during financial crises and major political shocks. Three time‐varying generalised autoregressive conditional heteroskedasticity models were employed: one of them symmetric, and the other two asymmetric. Each of these models was estimated based on three error distributional assumptions. The findings of the study are as follows: First, volatility is largely persistent and asymmetric. Second, risk at both aggregate and disaggregate level is generally not a priced factor on the South Africa (SA) stock market. Third, the threshold autoregressive conditional heteroscedasticity (TARCH) model under the generalised error distribution is the most appropriate model for conditional volatility of the SA stock market. Fourth, volatility generally increases over time, and its trend structurally breaks during financial crises and major global shocks. The policy and investment implications of the findings are outlined.     

LONG MEMORY IN THE VOLATILITY OF AN EMERGING FIXED‐INCOME MARKET: EVIDENCE FROM SOUTH AFRICA

This paper tests for long memory in volatility of fixed‐income returns; specifically, South Africa's local currency 10‐year government bond, given that the characterisation of stochastic long‐memory volatility is of interest and importance in portfolio and risk management. The long‐memory parameter is estimated using methods based on wavelets, which have gained prominence in recent years. Evidence of long memory in fixed‐income return volatility is conclusively demonstrated across a variety of volatility measures and wavelet forms. This finding suggests a pattern of time dependence, which may potentially be exploited to generate improved volatility forecasting performance especially over long horizons. This paper further extends the extant literature by comparing the predictive power of long‐memory forecasts with those obtained from a standard (short‐memory) generalised autoregressive conditional heteroskedasticity (GARCH) process. The results of this exercise suggest that the information content of long‐memory models does not lead to improved forecast accuracy. The GARCH(1,1) model is shown to provide the best forecasts across most horizons (i.e. daily, weekly and monthly). Forecast performance is further revealed to be sensitive to the choice of volatility proxy used. Finally, the derived volatility forecasts are generally very close, and in some cases, almost indistinguishable.     

PATTERNS OF CO‐MOVEMENT BETWEEN SOUTH AFRICA AND GERMANY: EVIDENCE FROM THE PERIOD 1985 TO 2006

This paper examines the co‐movement between Germany and South Africa by applying a dynamic factor model. Because these two countries have a long history of predominant trade ties, they deemed to be suitable proxies to analyse the channels of transmission of positive supply and demand shocks in a developed economy and the effects of these on an emerging market economy. In contrast to general expectations, the paper concludes that a German supply shock has more of a demand‐shock effect on the South African economy, while a German demand shock is transmitted through price in South Africa. This implies that the policy response in South Africa should not necessarily be the same as in Germany.