Theorising South Africa’s Corporate Governance

South Africa’s principal corporate governance report aspires to an ‘inclusive’ approach to corporate governance, in which companies are clearly advised to consider the interests of a variety of stakeholders. Yet, in common with many other countries, there is little discussion of the theoretical foundations and assumptions implicit in the recommended approach to corporate governance. The purpose of this article is to provide an analysis of corporate governance and the corporate environment in South Africa in terms of existing theory and models of corporate governance, and to provide a critique based on a consideration of traditional African values and the socio-economic necessities of post-apartheid South Africa. The result is the identification of an incompatibility between the current corporate environment in South Africa and the given exposition of African values. Some prospects for change are then identified.     

An Index of Economic Well–Being for Selected OECD Countries

Per capita gross domestic product (GDP) is a poor indicator of economic well–being. It measures effective consumption poorly (ignoring the value of leisure and of longer life spans) and it also ignores the value of accumulation for the benefit of future generations. Since incomes are uncertain and unequally distributed, the average also does not indicate the likelihood that any particular individual will share in prosperity or the degree of anxiety and insecurity with which individuals contemplate their futures. We argue that a better index of economic well–being should consider: current effective per capita consumption flows; net societal accumulation of stocks of productive resources; income distribution; and economic security. The paper develops such an index of economic well–being for the U.S., U.K., Canada, Australia, Norway and Sweden for the period 1980 to 1999. It compares trends in economic well–being to trends in GDP per person. In every case, growth in economic well–being was less than growth in GDP per capita, although to different degrees in different countries.     

The rise of Asia and structural change in the world economy

In this article, Andrew Sentance describes the growing economic importance of Asia and discusses the impact on the world economy. He argues that Western economies face a problem of structural adjustment not only to low-cost competition from newly industrialised countries but also because of technological changes. Macroeconomic shocks, Single Market restructuring and labour market inflexibility have made this process more difficult in Europe.     

A NEW APPROACH TO ASSET INTEGRATION: METHODOLOGY AND MYSTERY

Abstract. This paper develops a new methodology to test financial market integration. Our technique is based on an intertemporal asset‐pricing model, and relies on estimating and comparing expected discount rates across asset markets. Expected discount rates are allowed to vary freely over time, constrained only by the fact that they are equal across assets. Assets are allowed to have very general risk characteristics, and are constrained only by a linear factor model of covariances with the discount rate over short time periods. We provide a variety of domestic and international empirical illustrations of our technique, and find surprisingly little evidence of integration.     

Are trading bans effective? Exchange regulation and corporate insider transactions around earnings announcements

There is considerable controversy on the role of corporate insider trading in the financial markets. However, there appears to be a consensus view that some form of regulation concerning their activities should be imposed. One such constraint involves a trading ban in periods when corporate insiders are expected to be advantaged vis-à-vis the information flow. This paper directly tests whether constraints of this kind are effective in curtailing insider activity through a study of the trading characteristics of UK company directors. The London Stock Exchange Model Code (1977) imposes a two-month close period prior to company earnings announcements. We find that although the close period affects the timing of director trades, it is unable to affect their performance or distribution. Directors consistently earn abnormal returns irrespective of the period in which they trade. They tend to buy after abnormally bad earnings news and sell after abnormally good earnings news. Moreover, there are systematic differences in the trading patterns of directors surrounding interim and final earnings announcements. It appears that many corporate insiders have private information and exploit this in their trading activities. As a result, one can conclude that trading bans do not impose significant opportunity costs on the trading of corporate insiders.     

A SYSTEMS APPROACH TO THE DEMAND FOR ALCOHOL AND TOBACCO

This paper adopts a systems approach to estimate budget share equations for four categories of alcoholic drinks and for tobacco, using quarterly expenditure data for the period 1964 to 1983. The emphasis is on the importance of the tolerance effects of addiction and on the smoker's participation decision in correctly specifying the model of demand. The model makes explicit recognition of a separate participation decision and the estimates suggest that there is something to be gained by introducing variables to indicate changes in the distribution of income and the demographic structure of the population.     

When worlds collide: The implications of panel data-based choice models for consumer behavior

Panel data, both diary and scanner, have been analyzed by marketing scientists for over thirty years. One of the important uses of panel data is to better understand consumer behavior by developing and testing hypotheses using the revealed preference data rather than experimental data that uses only self-reported behavior or behavior in a simulated choice environment. The purpose of this paper is to suggest areas of research where panel data can be used to better understand the underlying behavior of the panel members.