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A Class of Models satisfying a Dynamical Version of the CAPM.

Napp, Clotilde; Jouini, Elyès - Université Paris-Dauphine - 2003

Under a comonotonicity assumption between aggregate dividends and the market portfolio, the CCAPM formula becomes more tractable and more easily testable. In this paper, we provide theoretical justifications for such an assumption.

Persistent link: https://www.econbiz.de/10008532425

Information asymmetries, volatility, liquidity, and the Tobin Tax

Danilova, Albina; Julliard, Christian - London School of Economics (LSE) - 2014

We develop a tractable model in which trade is generated by asymmetry in agents' information sets. We show that, even if news are not generated by a stochastic volatility process, in the presence of information treatment and/or order processing costs, the (unique) equilibrium price process is...

Persistent link: https://www.econbiz.de/10011170092

Does beta move with news?: Systematic risk and firm-specific information flows

Patton, Andrew J.; Verardo, Michela - London School of Economics (LSE) - 2009

This paper shows that the systematic risk (or "beta") of individual stocks increases by an economically and statistically signi…cant amount on days of firm-specific news announcements, and reverts to its average level two to five days later. We employ intra-daily data and recent advances in...

Persistent link: https://www.econbiz.de/10011071113

Endogenous liquidity and contagion

Rahi, Rohit; Zigrand, Jean-Pierre - London School of Economics (LSE) - 2009

Market liquidity is typically characterized by a number of ad hoc metrics, such as depth, volume, bid-ask spreads etc. No general coherent denition seems to exist, and few attempts have been made to justify the existing metrics on welfare grounds. In this paper we propose a welfare-based...

Persistent link: https://www.econbiz.de/10010884503

A theory of strategic intermediation and endogenous liquidity

Rahi, Rohit; Zigrand, Jean-Pierre - London School of Economics (LSE) - 2007

Market liquidity is typically characterized by a number of ad hoc metrics, such as depth (or market impact), volume, intermediation costs (such as breadth) etc. No general coherent denition seems to exist, and few attempts have been made to justify the existing metrics on welfare grounds. In...

Persistent link: https://www.econbiz.de/10010745443

Modélisation du risque dans les méthodologies d'audit : apport de la psychométrie.

Mansour, Sadok - Université Paris-Dauphine

Le thème de la décision en situation d’incertitude a été abordé par les recherches en audit en utilisant des approches … en psychologie de la décision menées par Kahneman et Tversky. …Audit decision in risk situations was studied by researchers using normative and descriptive approaches issued from …

Persistent link: https://www.econbiz.de/10008529695

Les informations comptables répondent-elles aux besoins informationnels des banquiers lors de l'octroi d'un crédit à une entreprise ?.

Rougès, Véronique - Université Paris-Dauphine

Les informations comptables sont supposées être utiles aux parties prenantes en situation de décision. Cette … communication s'interroge sur l'utilité des données comptables pour les banques lors de la décision de faire crédit à une entreprise …

Persistent link: https://www.econbiz.de/10008532316