L'hypothèse d'efficience des marchés n'a pas toujours été (et n'est toujours pas) admise facilement par les praticiens de la finance dont la pertinence du conseil en placements se trouve menacée au profit de stratégies indicielles passives. La littérature académique s'est donc attelée...

This paper explores the effects of the interventions of the Bank of Japan on the level and volatility of the yen/dollar exchange rate. A special attention is devoted to the prominent features affecting the signal conveyed by these interventions. The results show a clear duality: small unilateral...

This paper presents a new multivariate test for the detection of unit roots. Use is made of the possible correlations between the disturbances of different series, and constrained and unconstrained SURE estimators are employed. The corresponding asymptotic distributions are obtained and a table...

This paper studies labour market discriminations as an agency problem. It sets up a principal-agent model of a firm, where the manager is a taste discriminator and has to make unobservable hiring decisions that determine the shareholder’s profits because workers differ in skills. The paper...

This paper offers a new representation of discrimination on the job market based on the most recent findings in the socio-psychological academic literature about human behaviour. Put it simply, it is assumed that the agents prefer working with people like themselves. This "affinity" principle is...

In this article, tests for globalization and contagion are separated using an ex ante definition of crises, and contagion tests are neutralized with respect to globalization effects. A large database is constructed to study the stability of correlation matrices for four asset classes: equities,...

Economists have been blamed for their inability to forecast and address crises. This paper attributes this inability to intertwined factors: the lack of a coherent definition of crises, the reference class problem, the lack of imagination regarding the nature of future crises, and sample...

Poor women have complex financial lives. They borrow from a variety of sources. So far, however, research has focussed only on formal borrowing as a source of women’s empowerment. This study examines whether type of borrowing matters to women. We differentiate between ‘easy loans’ – that...

Microfinance institutions serve a majority of female borrowers. But do men and women benefit from same credit conditions? This paper investigates this issue by presenting an original model and testing its predictions on an exceptional database including 34,000 loan applications from a Brazilian...