Open market share repurchases are strictly regulated to prevent companies from profiting from insider information. We examine compliance with these rules in France, where the mandatory disclosure of share repurchases provides detailed information on repurchases actually undertaken. Using a...

Open market share repurchases are strictly regulated to prevent companies from profiting from insider information. We examine compliance with these rules in France, where the mandatory disclosure of share repurchases provides detailed information on repurchases actually undertaken. Using a...

We shed new light on the corporate governance role of institutional investors in markets where concentrated ownership and business groups are prevalent. When companies have controlling shareholders, institutional investors, as minority shareholders, can play only a limited role in corporate...

This thesis contributes to the analysis and measure of systemic risk through four chapters. In the first chapter, we discuss the notion of systemic risk and detail the methodological issues of modeling. The second chapter proposes a structural model of solvency contagion. Within an equilibrium...

Most stock exchange regulators around the world reacted to the 2007-2009 crisis by imposing bans or regulatory constraints on short-selling. Short-selling restrictions were imposed and lifted at different dates in different countries, often applied to different sets of stocks and featured...

We present a model in which issuers of asset backed securities choose to release coarse information to enhance the liquidity of their primary market, at the cost of reducing secondary market liquidity or even causing it to freeze. The degree of transparency is inefficiently low if the social...

I propose a model in which a stock exchange can improve its liquidity by tightening its listing requirements. Because these reduce information asymmetry, they increase the utility of investors and lead to a high investor participation on the exchange. However, the exchange never sets the highest...

Based on high frequency data from eight exchanges and a trade reporting facility for a sample of LSE- and Euronext-listed equities, this article compares global and local liquidity before and after MiFID and investigates how liquidity relates to market fragmentation and internalization. Market...

Based on trade and quote data from eight exchanges and a trade reporting facility for a sample of LSE- and Euronext-listed equities, this article compares the consolidated liquidity of competing markets, also called global liquidity, and the local liquidity of the primary exchang, before and...

Exploring the period since the inception of the euro, we show that secondary-market yields on Italian public debt increase in anticipation of auctions of new issues and decrease after the auction, while no or a smaller such effect is present for German public debt. However, these yield movements...