Market Efficiency Models and Tests
Possibly the most controversial issue in finance is whether the financial market is efficient in allocating or using economic resources and information or not. Other financial theory issues such as volatility, predictability, speculation and anomalies are also related to the efficiency issue and are all interdependent (Islam and Oh 2003; Mills 1999; Cuthbertson 1996). An investigation of the Efficient Market Hypothesis (EMH) of the Thai stock market is provided in this chapter while the other related issues of finance theory and their implications for EMH are included in subsequent chapters.
KeywordsRandom Walk Stock Market Stock Price Stock Return Stock Prex
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