A framework is developed for examining the price and welfare effects of the introduction of genetically modified (GM) crops. In the short run, non-GM grain generally becomes another niche product. However, more profound market effects are observed under some reasonable parameterizations. In the...

The paper examines three hypotheses about the effect of insider trading on the market response to new financing announcements (NFAs) using a sample of disclosures made by UK firms between 1989 and 1991. The study demonstrates first that no systematic relationships exist between the market...

ENGLISH ABSTRACT: This event study examines the effect that Black Economic Empowerment (BEE) announcements have on a companies' share price. The average mean return model is applied to study a sample of companies from the Financial Mail Top 200 Empowerment Companies list, 2007. The mean price...

It is believed that resource companies which derive their earnings from selling resources predominantly in foreign currency should be significantly exposed to both the exchange rate and the resource price. The aim of this research was to better explain the exposures facing resource companies...

This study addresses the issue of shar eprice predictability on the JSE Securities Exchange (JSE) over the 1989 to 2009 period. Th eoverall predictability of the JSE in terms of market indices and individual share prices is examined. The predictability in prices of portfolios formed by ranking...

Black Economic Empowerment is an important and influential aspect of SouthAfrica’s economy. Firms listed on the Johannesburg Securities Exchange have beenengaging in deals aimed at Black Economic Empowerment for a number of years.These deals are typically complex and include many aspects that...

There have been numerous studies investigating the problem of CEO departureand concomitant market reaction around the world. In some instances themarket reaction is favourable; in others not. Throughout the various businesscycles and economic conditions the quality of management is usually...

"JSE tops all single stock futures markets" (Business Report, July 13, 2007). The Johannesburg Securities Exchange's (JSE) single stock futures market is the largest in the world. This research investigates the forecasting abilities of implied volatility models for South African single stock...

The dividend information signalling hypothesis is one of the more popular theories that address the questions: “Why do companies pay a dividend?” and “Should the dividend have any effect on firm valuation?”. A key premise of the signalling hypothesis is that the dividend contains...