Ce cahier de recherche est composé de quatre contributions qui reflètent des recherches actuelles des membres de l'équipe pédagogique de la spécialisation Médias, Art et Création de HEC Paris. Tous les secteurs de la création (cinéma, médias, spectacle vivant, édition, musique,...

We measure the impact of bank capital requirements on corporate borrowing and expansion. We use French loan-level data and take advantage of the transition from Basel I to Basel II. While under Basel I the capital charge was the same for all firms, under Basel II, it depends in a predictable way...

Decades of accumulated knowledge empowers our quest to de-bias human cognition. However, I propose that improvement methods aimed at certain biases may introduce new biases due to cognitive and situational limitations: Such limitations give rise to simplifying and protecting processes (SPPs),...

Speed matters: we show that an investor's optimal trading strategy is significantly different when he observes news faster than others versus when he does not, holding the precision of his signals constant. When the investor has fast access to news, his trades are much more sensitive to news,...

In a recent comment made about my paper “A Social Movement Perspective on Finance: How Socially Responsible Invetsment Mattered” (J Bus Ethics 92:57–78, 2010), published in this journal, Déjean, Giamporcaro, Gond, Leca and Penalva-Icher (J Bus Ethics 112: 205-212, 2013) strongly criticize...

This paper considers dynamic implementation problems with evolving private information (according to Markov processes). A social choice function is approximately implementable if there exists a dynamic mechanism such that the social choice function is implemented by an arbitrary large number of...

We analyze the implications of the decision to spawn or to retain a new product for the nature and evolution of the firm. In our model, a new product is spawned if the fit between the product and its parent firm organization is not adequate. We focus on the impact of the firm's history of...

Author's abstract. In nonlinear state-space models, sequential learning about the hidden state can proceed by particle filtering when the density of the observation conditional on the state is available analytically (e.g. Gordon et al. 1993). This condition need not hold in complex environments,...

We introduce a tractable class of non-affine price processes with multifrequency stochastic volatility and jumps. The specifi cations require few fixed parameters and deliver fast option pricing. One key ingredient is a tight link between jumps and volatility regimes, as asset pricing theory...

Recent evidence on relative earnings from entrepreneurship versus wage work shows that after controlling for observable differences, entrepreneurs in most developed countries on average apparently earn less than employees. Does this mean that the choice of entrepreneurship should be encouraged...