This paper investigates whether news suggestive of irrationality within financial markets have an impact on stock returns. We construct a lexicon of words for 'market irrationality' and score daily news articles based on the number and proportion of words they contain from the lexicon. We find...

We propose several multivariate variance ratio statistics. We derive the asymptotic distribution of the statistics and scalar functions thereof under the null hypothesis that returns are unpredictable after a constant mean adjustment (i.e., under the weak form Efficient Market Hypothesis). We do...

Purpose - This article aims to present a new strategy of portfolio selection.Design/methodology/approach - After having made a comparative survey of different strategies of portfolio selection adopted by portfolio managers in Tunisia, we propose a new strategy, which we call weighted...

This paper investigates the relationship between liquidity and stock returns in the Vietnam stock market during financial crisis using a data set ranging from 2006 to 2010. Employing a rich and detailed dataset of characteristics of firm listed in Ho Chi Minh City Stock Exchange, the results...

We use Hong Kong stock market data from 1982-2001 to test the persistence of the size and value premia and the robustness of the Fama-French (FF) three-factor model in explaining the variation in stock returns. We document a statistically significant and persistent size effect or size premium...

In questioning Kamstra, Kramer, and Levi's (2003) finding of an economically and statistically significant seasonal affective disorder (SAD) effect, Kelly and Meschke (2010) make errors of commission and omission. They misrepresent their empirical results, claiming that the SAD effect arises due...

It is widely believed that stocks with high idiosyncratic risk exhibit stronger anomalies because arbitrageurs avoid holding these stocks due to diversification concerns, allowing deviations of prices from fundamental values. In this paper we test this proposition using hedge fund holding data....

We provide a new perspective on option and stock price behavior around 52-week highs and lows. We analyze whether option-implied volatilities change when stock prices approach or break through their 52-week high or low. We also study the effects of highs and lows on a stock's beta and return...

High-frequency trading has become a dominant force in the U.S. capital market, accounting for over 70% of dollar trading volume. This study examines the implication of high-frequency trading for stock price volatility and price discovery. I find that high-frequency trading is positively...