This note is a reflection on the meaning and scope of segregation and socio-spatial fragmentation indicators and, beyond, on the role of statistics in sociological reasoning. It shows that if these indicators can be used to test theories of segregation or fragmentation, they must nevertheless...

The Kyoto Protocol was the first implementation of a concerted international action tackling the risks raised by climate change. In the long run, it could become the driving force of a drastic shift in the way our societies operate. The enforcement of quotas on greenhouse gas emissions and the...

While mobile data services in Europe have failed to trigger fresh growth in the mobile telecommunications market to-date, Japan and Korea are now considered the "champions" of mobile multimedia services. Through identification and analysis of success factors in these two countries, this paper...

This paper provides an econometric evaluation of the impact of two innovative care programs for elderly people with dementia (day-care centers and group-living) on the well-being of the primary caregiver of patients. For this evaluation, we use data from a survey conducted in six European...

Failure of a new product is sometimes thought as a learning tool. In this article, we give a complementary explanation to this question by focusing on a major step of the learning process : the analysis and the interpretation of failure by the people involved. This research mainly addresses one...

In spite of its predominant economic weight in developing countries, little is known about the informal sector earnings structure compared to that of the formal sector. Taking advantage of the rich VHLSS dataset in Vietnam, in particular its three wave panel data (2002, 2004, 2006), we assess...

Analyse de la validité des opérations d'apport-cession de titres au regard de la répression sur le fondement de l'abus de droit.

This paper analyses the qualitative properties of optimal contracts when agents have multiple priors and are uncertainty averse in an infinite state space framework. The case of the epsilon-contamination of a given prior, a basic tool in robustness theory is fully developped. It is shown that if...

We propose a general framework to study the stability of the subspace spanned by P consecutive eigenvectors of a generic symmetric matrix H0 when a small perturbation is added. This problem is relevant in various contexts, including quantum dissipation (H0 is then the Hamiltonian) and financial...