This paper investigates the relative importance of different types of news in driving significant stock price changes of firms in the defense industry. We implement a systematic event study with a sample of the 58 largest publicly listed companies in the defense industry, over the time period...

In this paper, we examine the stock market reaction to industrial disasters. We consider an original sample of 64 explosions in chemical plants and refineries worldwide over the period 1990-2005. A quarter of the accidents resulted in a toxic release, and half of them caused at least one death...

This paper aims to study the impact of macroeconomic announcements on stock returns. More specifically, it intends to measure the average response of the French stock market and to provide some theoretical explanations regarding the sources of this reaction. Using intraday data, the study shows...

This paper aims to advance in the knowledge of the economic impacts of ISO 50001 certification on firms' performance. The study hypothesizes that ISO 50001 is associated with improvements in market value of firms. We employ, on one hand, event study methodology for a sample of 40 companies...

In this study, we attempt to shed some light on the effects of SWF investment activities by analyzing the short-term impact of SWF investments on the performance of those companies in which they invest. We collect both direct and indirect data on equity investments for each SWF. The sample...

Stock market indices are today a vital and daily tool for both economists and actors in the financial world. The multiplication and the very importance given to these indices raise the question of their accuracy and of the reliability of the methods that are used to construct them. We begin an...

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...