In this paper, we present a general discrete-time affine framework aimed at jointly modeling yield curves associated with different debtors. The underlying fixed-income securities may differ in terms of credit quality and/or in terms of liquidity. The risk factors follow conditionally Gaussian...

In this paper, we propose a model of the joint dynamics of euro-area sovereign yield curves. The arbitrage-free valuation framework involves five factors and two regimes, one of the latter being interpreted as a crisis regime. These common factors and regimes explain most of the fluctuations in...

This study assesses the reaction of stock markets, when Sovereign Wealth Funds (SWFs) announce that they have taken a stake in a listed company. It adds useful empirical results to the debate on the effect of SWFs on financial markets, which remains so far largely reliant on guess work. We...

Speculators can discover whether a signal is true or false by processing it but this takes time. Hence they face a trade-off between trading fast on a signal (i.e., before processing it), at the risk of trading on a false news, or trading after processing the signal, at the risk that prices...

We set up a model where asset price bubbles due to risk shifting can be moderated by capital requirements. However, imperfect information about the ratio of required capital, or, in the context of the sub-prime crisis, the extent of regulatory arbitrage, introduces uncertainty about the risk...

Pour expliquer l'existence de règles de «stop-loss» dans les institutions financières, nous développons un modèle principal-agent, où une firme d'investissement (le principal) doit faire appel à l'expertise d'un opérateur (l'agent) pour investir dans un actif risqué et sophistiqué...

Si les stocks ou encours de credits detenus par les banques sont bien connus et permettent une mesure de differents risques bancaires, il n'existe en revanche aujourdh'hui en matiere de credit aucune information d'ensemble sur la production. En d'autres termes, peu de donnees sont disponibles au...

les conditions de financement des banques contribuent a expliquer leur comportement et en particulier les modifications de leur offre de pret a la suite de differents chocs. Dans cet article nous utilisons des donnees sur les emissions de certificats de depots francais pour etudier la...

Pour expliquer l'existence de regles de "stop-loss"dans les institutions financieres, nous developpons un modele principal-agent, ou une firme d'investissement (le principal) doit faire appel a l'expertise d'un operateur (l'agent) pour investir dans un actif risque et sophistique (par example un...

Based on a survey among French engineers, I find that employees in the financial sector are highly paid. I also find large pay differences within the sector and that a large share of compensation is variable. I consider three potential models accounting for these facts: a model of superstars...