Measuring the informal sector and informal employment is of critical importance owing to the key role that this sector plays in African economies – a role that is set to expand in the years to come. This article presents an assessment of 1-2-3 surveys on the infor mal sector and infor mal...

This article examines the dynamics of the informal sector in Madagascar during the 1995-2004 period, which was characterized by sustained growth that ended due to a major political crisis. As conventionally assumed by simple dualistic models, the informal sector indeed fulfils a labor-absorbing...

Questioning about game theory as an institutionalism theory could seem unsound at first glance. In game theory, the very basic concept of players’ strategies is quite individualistic and really independent on any social constraint and other institutional consideration. On another hand, the...

Toward the late 1990s, several research groups independently began developing new, related theories in mathematical finance. These theories did away with the standard stochastic geometric diffusion "Samuelson" market model (also known as the Black-Scholes model because it is used in that most...

This paper proposes an equilibrium approach to belief manipulation and deception in which agents only have coarse knowledge of their opponent s strategy. Equilibrium requires the coarse knowledge available to agents to be correct, and the inferences and optimizations to be made on the basis of...

The article shows how Jean-Francois Mertens contributed to the development of game theory and microeconomics as we know them today. Along with about 80 articles, Mertens's topics go from the formulation of Bayesian decision making in games with incomplete information to the foundations of cost...

We examine the consequences on impairment testing disclosures of auditor-pair choice made by French listed companies where two (joint) auditors are required by law. Managers are likely to manipulate impairment-testing disclosures since it relies on unverifiable fair value estimates (e.g.,...