Risk-return tradeoff and the behaviour of volatility on the South African stock market: Evidence from both aggregate and disaggregate data
AbstractThe 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 GARCH 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: Firstly, volatility is largely persistent and asymmetric. Secondly, risk at both the aggregate and disaggregate level is generally not a priced factor on the South African stock market. Thirdly, the TARCH-M model under the Generalised Error Distribution is the most appropriate model for conditional volatility of the South African stock market. Fourthly, 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.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by Economic Research Southern Africa in its series Working Papers with number 198.
Length: 31 pages
Date of creation: 2010
Date of revision:
Contact details of provider:
Postal: Newlands on Main, F0301 3rd Floor Mariendahl House, cnr Campground and Main Rds, Claremont, 7700 Cape Town
Phone: 021 671-3980
Fax: +27 21 671 3912
Web page: http://www.econrsa.org/
More information through EDIRC
Risk-return tradeoff; stock market volatility; asymmetric GARCH models;
Find related papers by JEL classification:
- G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
- G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
- C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
This paper has been announced in the following NEP Reports:
- NEP-AFR-2010-12-11 (Africa)
- NEP-ALL-2010-12-11 (All new papers)
- NEP-RMG-2010-12-11 (Risk Management)
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Tinashe Harry Dumile Kambadza & Zivanemoyo Chinzara, 2012. "Returns Correlation Structure and Volatility Spillovers Among the Major African Stock Markets," Working Papers 305, Economic Research Southern Africa.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Yoemna Mosaval).
If references are entirely missing, you can add them using this form.