According to the weak-form of the Efficient Market Hypothesis (EMH), investors should not be able to outperform the market consistently by looking at charts of past share prices or by devising trading rules based on historic share returns. This paper investigates the extent to which the equity...

This paper examines the weak-form efficient markets hypothesis for the Nigerian stock market by testing for random walks in the monthly index returns over the period 1984-2009. The results of the non-parametric runs test show that index returns on the Nigerian Stock Exchange (NSE) display a...

This paper examines the stock market reaction to annual earnings information releases using data on the Nigerian Stock Exchange. Using the event study method, the speed of reaction of the market to annual earnings information releases for a sample of 16 firms listed on the exchange is tested....