South African asset classes : return and volatility relationship dynamics over time

Abstract

This dissertation is based on the hypothesis that a third dimension, namely investment time horizon, can add value to the more conventional two-dimensional methodology of assessing the relative risk and return attributes of various assets and portfolios in order to enhance investment decisions. This study shows that time horizons should be considered in the investment decision making process and provides concrete evidence that a methodology that is not cognizant of investment time horizon is prone to extensive long-term opportunity cost risk. In addition to providing evidence of investment time horizon relevance, the study makes suggestions as to how time horizons could be incorporated into the risk return assessments of various asset classes and also presents a framework for the more holistic assessment of asset class properties while incorporating time horizons.