This paper identifies four categories of formal stock market in Africa: South Africa, medium-sized markets, small new markets which have experienced rapid growth, and small new markets which have yet to take off. The hypothesis that a stock market price index follows a random walk is tested for...

This paper provides tests of the random walk hypothesis for the Korean stock market over the period from March 1988 to December 1998. During this time there are five regimes of daily price limits. We use a sample of 55 actively traded stocks selected to cover a wide range of industries and with...

This article investigates the impact on the spot market of trading in KOSPI 200 futures. Empirical results show that futures trading increases the speed at which information is impounded into spot market prices, reduces the persistence of information and increases spot market volatility. The...

The hypothesis that stock market price indices follow a random walk is tested for five European emerging markets, Greece, Hungary, Poland, Portugal and Turkey, using the multiple variance ratio test. In four of the markets, the random walk hypothesis is rejected because of autocorrelation in...