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Do Bookmakers Possess Superior Skills to Bettors in Predicting Outcomes?
International audience -
Impacts de la notation financière sur le prix des actions
The research identifies the circumstances that lead to a real decrease in stock prices of companies facing a negative credit rating announcement. In addition to an... -
The random walk hypothesis for Chinese stock markets: Evidence from variance ...
This study examines the random walk hypothesis for the Shanghai and Shenzhen stock markets for both A and B shares, using daily data over the period 1992-2007. The... -
The efficiency of the crude oil markets: Evidence from variance ratio tests
This study examines the random walk hypothesis for the crude oil markets, using daily data over the period 1982-2008. The weak-form efficient market hypothesis for two... -
Share repurchase: Does it increase the informativeness of market prices?
Share repurchases are transactions which are supposed to cause a market reaction through a signaling approach. However looking only at cumulated abnormal returns... -
Stock Exchange Mergers and Market Efficiency
The aim of this paper is to examine the positive and negative impacts of stock exchange mergers on the informational efficiency of the markets. We consider a range of... -
Essays in Financial Market Microstructure
This dissertation is made of three distinct chapters. In the first chapter, I show that traditional liquidity measures, such as market depth, are not always relevant...
