Arbitrage pricing theory states that the expected return of an asset portfolio is related to factors characterizing the economy and could be associated to macroeconomic variables. In this paper, we consider equity traded in the Chilean stock market to empirically contrast the APT in its...

This paper examines how liquidity affects market efficiency in a market environment where securities' true values are revealed at a predetermined point in time. We employ differences in minimum tick sizes at the betting exchange Betfair as a source of exogenous variation in liquidity. The...

The recent market crises have focused interest on methods to improve the functioning of financial markets. Before implementing new regulations, it is necessary to evaluate the effects of previous regulations. Regulatory changes such as Fair Disclosure have an effect on information dissemination...

Using stochastic dominance (SD) approach, this paper revisits the Ramadan effect in the stock returns of 15 Muslim countries and altogether as a portfolio. Our study is motivated by the preferred statistical attributes of SD analysis. Specifically, SD requires no normal distribution of returns...

We survey the textual sentiment literature, comparing and contrasting the various information sources, content analysis methods, and empirical models that have been used to date. We summarize the important and influential findings about how textual sentiment impacts on individual, firm-level and...

The Momentum effect is a capital market puzzle. International evidence has found anomalies that market efficiency-based explanations have been so far unable to explain. If it is pervasive, the Momentum effect should be present in the Chilean market as well. From the perspective of the existing...

Is it theoretically legitimate for an investor to attempt to outperform the market index? Or is the investor simply deluding himself? The purpose of this paper is to apply the new Theory of Rational Beliefs (RB) to demonstrate the following result: Even when all agents have symmetric...

The puzzling evidence of seemingly high momentum returns is related to an understanding of risk as a simple covariance. If we consider, however, risk in higher-order statistical moments, momentum returns appear less advantageous. Thus, a prospect-theoretical assessment of US stock momentum...

We report results of an internet experiment designed to test the theory of informational cascades in financial markets (Avery and Zemsky, AER, 1998). More than 6000 subjects, including a subsample of 267 consultants from an international consulting firm, participated in the experiment. As...

DeLong (1990a) et al. show that in the presence of positive feedback traders rational speculation can be destabilizing, in that it drives the price of a risky asset above its expected value. A generalization of their seminal model with additional trading dates and an additional informative...