| Abstract: | The efficiency of security market is necessary for the harmonious growth of capital market, and more particularly in an emerging economy. This paper looks at the case of the Thai stock market, and uses statistical tests based on stratified samples of stocks on weekly data over a four year period. The tests check the normality of the price lag and the correlations over a 6 period lag. As a conclusion, the tests indicate* that only few stocks conform to the weakform efficiency market hypothesis. The authors make specific recommendations to improve the efficiency of the market as a whole. |
