We study securities market models with fixed costs. We first characterize the absence of arbitrage opportunities and provide fair pricing rules. We then apply these results to extend some popular interest rate and option pricing models that present arbitrage opportunities in the absence of fixed...

Traditional …financial theory predicts that comovement in asset returns is due to fundamentals. An alternative view is that of Barberis and Shleifer (2003) and Bar- beris, Shleifer and Wurgler (2005) who propose a sentiment based theory of comovement, delinking it from fundamentals. In their...

Dans cet article, nous étudions empiriquement les déterminants des spreads des obligations souveraines des pays de l'UE vis-à-vis de l'Allemagne entre 2003-2010. Nous abordons deux questions principales. Tout d'abord, nous examinons quelle proportion de la variation des spreads s'explique par...