In standard rational choice modelling decisions are made according to given information and preferences. In the model presented here the 'information technology' of individual decision makers as well as their preferences evolve in a dynamic process. In this process decisions are made rationally...

In a model with private information of the worker about her ability and unobservable effort choice, the role of public and private employment services is analyzed. The coexistence of an inefficient employment exchange and an efficient private agency may lead to optimal screening with first best...

Dismissal rules, i.e. legally enforced long term contracts, have beem defended against criticism for, among other things, providing efficient incentives to invest in relationship specific skills. However, in many situations efficient investment can also be attained by spot contracts. We...

Search frictions are regarded as a major impediment to active competition in many markets. In some markets, such as financial and retail gasoline, governments and consumer protection agencies call for compulsory price reporting. Consumers could then more easily compare the firms' offers. We...

We examine overconfidence among equity mutual fund managers. While overconfidence has been extensively documented among retail investors, evidence from professional investors is scarce. Consistent with theories of overconfidence, we find that fund managers trade more after good past performance....

We document that prior work experience of mutual fund managers outside of the asset management industry is valuable from an investment perspective in that it provides managers with a stock picking and industry timing advantage. Fund managers' stock picks from industries where they previously...

We investigate the effect of employee heterogeneity on the incentive to put forth effort in a market-based tournament. Employers use the tournament's outcome to estimate employees' abilities and accordingly condition their wage offers. Employees put forth effort, because by doing so they...

We study the effects of improvements in eBay's rating mechanism on seller exit and continuing sellers' behavior. Following a large sample of sellers over time, we exploit the fact that the rating mechanism was changed to reduce strategic bias in buyer rating. That improvement did not lead to...

We investigate the role of consumer confidence in the transmission of monetary policy shocks from an empirical and theoretical perspective. Standard VAR based analysis suggests that an empirical measure of consumer confidence drops significantly after a monetary tightening and amplifies the...

Nous vivons un choc numérique, qui n'est plus une déformation lente, mais une rupture brutale, planétaire, rapide et globale. Aucun secteur, aucune activité ne sont épargnés. Mobilité, outils collaboratifs, objets connectés, big data… le monde numérique est là et irrigue toutes les...