An increase in the cost of short selling should increase the bearish information content of short interest announcements by driving relatively uninformed short sellers out of the market (Diamond and Verrecchia, 1987). We extend the Diamond and Verrecchia model to include short selling against...

This paper provides an empirical study of the effect of a transaction tax on share prices, using changes in the rate of stamp duty in the UK as quasi-experiments. Because the impact of a stamp duty is expected to depend on how frequently particular shares are traded, we employ a...

This study investigates the relationship between the dispersion of analysts? earnings forecasts and stock price variability around quarterly earnings announcements. Consistent with theoretical predictions, the empirical analysis shows that stock price variability at the time of earnings...

We decompose volatility of a stock market index both in time and scale using wavelet filters and design a probabilistic indicator for valatilities, analogous to the Richter scale in geophysics. The peak-over-threshold method is used to fit the generalized Pareto probability distribution for the...

The paper analyzes stock-price reactions to stock recommendations published in printed Swedish media and also trading volumes at and around the publication day, bid/ask spreads, and the post-publication drift in recommended stocks for the period 1995-2000. Its small size and limited number of...

The efficient market hypothesis states that asset prices in financial markets should reflect all available information; as a consequence, prices should always be consistent with ‘fundamentals’. In this paper, we discuss the main ideas behind the efficient market hypothesis, and provide a...

Correct assessment of the risks associated with likely economic outcomes is vital for effective decision making. The objective of investment in the stock market is to obtain positive market returns. The risk, however, is the danger of suffering large negative market returns. A variety of...

Financial turbulence is a phenomenon occurring in anti - persistent markets. In contrast, financial crises occur in persistent markets. A relationship can be established between these two extreme phenomena of long term market dependence and the older financial concept of financial...

Based on a stylized infinite-period and multi-asset model of a securities market, I discuss several aspects of the link between disclosure quality and cost of capital, with a particular focus on how diversification influences this link. I first show that because investors have finite horizons...

This study attempts to model the pricing decision of a Tunisian FX dealer for the Dollar (USD/TND) and the Euro (EUR/TND) based on the daily exchange rates. Using GMM estimation, we find evidence to support for the information and inventory effects for the USD/TND, but not for the EUR/TND. For...