The evolution of firms' investment behavior is interpreted by heterodox theories as the resultant of the financialization of the accumulation regime. The French School of Regulation thus introduces the notion of patrimonial capitalism. The strategies of productive and financial investments, and...

In this article, we look at two competing hypotheses to explain IPO underpricing in France when a seasoned offering follows the IPO. The first hypothesis assumes that the initial underpricing is a signal from a high quality firm in the anticipation of a subsequent equity issue at a higher price....

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...

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...

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...

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 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...

Benoit Mandelbrot, mathématicien et savant multidisciplinaire, s'intéressa très tôt dans sa carrière à l'étude statistique des données économiques et financières et fut à l'origine de nombreuses idées importantes dans la modélisation statistique des risques financiers, sujet qui le...