The core of a cooperative game on a set of players N is one of the most popular concept of solution. When cooperation is restricted (feasible coalitions form a subcollection F of 2N), the core may become unbounded, which makes it usage questionable in practice. Our proposal is to make the core...

In this model, we characterize optimal immigration and fiscal policies in presence of a rival public good and heterogeneous discounting. Surprisingly, even if the government is benevolent towards natives only, it is optimal to keep borders open. Indeed, in the long run, patient natives hold the...

Following Santos Silva and Tenreyro (2006), various studies have used the Poisson Pseudo-Maximum Likelihood to estimate gravity specifications of trade flows and non-count data models more generally. Some papers also report results based on the Negative Binomial estimator, which is more general...

Numerous papers constructed or simulated financial markets at an agent level, aiming to explain the non-stationarity of price processes. All such papers agree that the heterogeneity of agents and of pricing models creates a dynamics in terms of pricing models used that explains not only the...

This paper addresses how corporate environmentalism can be a means of differentiation and of green-washing. Since consumers can seldom directly observe a firm's environmental quality (a problem not easily solved through eco-labeling), published environmental reports and advertising can mislead...

Operational risk quantification requires dealing with data sets which often present extreme values which have a tremendous impact on capital computations (VaR). In order to take into account these effects we use extreme value distributions to model the tail of the loss distribution function. We...

Research aimed to analyze the role of the social actors, in France and in Quebec, in the governance of the conciliation. At the end of research, we propose the track of a strategy renewed around the concept of flexi-security, in a new and widened meaning. Thus, while the flexi-security of...

The article analyses how the changes in firm's human resources practices shaped the dynamics of labour market segmentation in France. The survey FQP 2003 contains a rich information to describe jobs. It offers standard information as the sector or the size of the company and also more original...

This paper focuses on a procedure to test for structural changes in the first two moments of a time series, when no information about the process driving the breaks is available. We model the series as a finite-order auto-regressive process plus an orthogonal Bernstein polynomial to capture...

The ‘conventional cancelation’ is a way for employer and employee to mutually agree for ending the labor contract. Officially, it will permit to raise mutually beneficial agreements and to reduce the judge role. First, what is at stake here is the bargaining capacity of the employee and the...