the present study aimed at investigating the existence of long memory properties in ten emerging stock markets across the globe. when return series exhibit long memory, it indicates that observed returns are not independent over time. if returns are not independent, past returns can help predict future returns, thereby violating the market efficiency hypothesis. it poses a serious challenge to ...

Using a new hand-collected data set, this study examines the stock price manipulation in the Taiwan Stock Exchange (TSE). We examine the characteristics of the manipulated stocks, and their impacts on market quality. The results show that manipulated stocks tend to be small. The stock prices rise throughout the manipulation period, followed by a price reversal. The average cumulative abnormal r...

this paper examines the accuracy of valuation models in providing reasonable estimation of the market values of listed companies in tehran stock exchange (tse). six valuation models including gordon growth model, two stage dividend discount model, adjusted present value, price to earning ratio and residual income were examined in this study. in addition, three proxies represent the market value...

Using the efficiency of capital allocation function to characterize the stock market system efficiency.Using panel data analysis method,from a regional perspective empirical analysisto implement the stock market during the capital allocation function efficiency issue approval system for China.The results show: the efficiency of resource allocation of China stock market is lower,and stock market...