It is a well-known fact that most of the asset returns tend to be skewed and heavytailed. Heavy tailed distributions such as the Student’s t distribution and Stable distribution are commonly used in finance to model asset returns that areheavy tailed. Additionally, Stable distribution allows...

The present study investigates the possible existence of a systematic relation between beta and excess-return for portfolios of Turkish equities. In the process, no systematic relation is found between beta and realized portfolio excessreturn, in an unconditional sense. However, the study does...

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...

This paper presents a simple rational expectations model of intertemporal asset pricing. It shows that heterogeneous risk aversion of investors is likely to generate declining aggregate relative risk aversion. This leads to predictability of asset returns and high and persistent volatility....

A small but ambitious literature uses affine arbitrage-free models to estimate jointly U.S. Treasury term premiums and the term structure of equity risk premiums. Within this approach, this paper identifies the parameter restrictions that are consistent with a simple dividend discount model,...

This paper first examines to what extend the most puzzling phenomenon of stock returns momentum, may also concern emerging and little markets, such the Tunisian one, which accounts slightly less than 100 listed securities. The results indicate a pronounced and even stronger momentum effect that...

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...

The objective of this paper is to investigate herding behavior in the Brazilian stock mutual funds. Through the study of the 100 largest funds of the category, between September/2004 and July/2008, two herding indexes are analyzed: (i) the index, proposed by Lakonishok, Shleifer and Vishny...

We find that aggregate net equity fund flows are strongly negatively correlated with changes in expected future stock market volatility as measured by the VIX. Implying that investor purchase decisions are primarily driven by returns and sale decisions by risk perceptions, we further find that...

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...