We study the information content in monthly short interest using NYSE-, AMEX-, and NASDAQ-listed stocks from 1988 to 2005. We show that stocks with relatively high short interest subsequently experience negative abnormal returns, but the effect can be transient and of debatable economic...

This study addresses the question of whether the adaptive market hypothesis provides a better description of the behaviour of emerging stock market like India. We employed linear and nonlinear methods to evaluate the hypothesis empirically. The linear tests show a cyclical pattern in linear...

Using two samples (one as an experimental and one as a control), the authors evaluated the joint effect of two factors on the behavior of common stock prices. These factors were (1) the decision to switch the method of costing inventory to LIFO, and (2) the sign of the expected growth in EPS...

We derive an equilibrium price that converges to be strong-form informationally efficient in the original Grossman-Stiglitz model (1980). Specifically, we show that when the private signal converges to be perfect or traders converge to be risk neutral, there exists a unique overall equilibrium...

This paper is amongst the first to investigate weak-form efficiency of the most developed (G-20) countries in the world. It also measures the impact of the 2007 financial crisis on the stock markets of these countries, in terms of their efficiency. Serial correlation test, ADF unit root test, Lo...

This study examines the adaptive market hypothesis of the S&P500, FTSE100, NIKKEI225 and EURO STOXX 50 by testing for stock return predictability using daily data from January 1990 to May 2014. We apply three bootstrapped versions of the variance ratio test to the raw stock returns and also...

This study provides novel insights to the ongoing debate how market efficiency is challenged by investor behavior. Applying search engine data we find that retail investor attention can enhance market efficiency. High attention is associated with better incorporation of idiosyncratic stock...

Prior research has documented that arbitrage activity significantly reduces or eliminates stock market anomalies. However, if anomalies arise due to unsophisticated investors' behavioral biases, then these same biases can also apply to unsophisticated arbitrageurs and thereby disrupt the...

In a first of its kind, this paper examines the issue of sectoral efficiency of the Indian Stock Market. For this, daily data for 11 sectoral indices on NSE viz. Auto, Bank, Energy, Finance, FMCG, IT, Media, Metal, Pharma, PSU Banks and Realty Index have been used. The study period spans from...

Relying on the Stambaugh, Yu, and Yuan (2015) mispricing score and on 45 countries between 1994 and 2013, I document economically meaningful and statistically significant cross-sectional stock return predictability around the globe. In contrast to the widely held belief, mispricing associated...