A discrete time probabilistic model, for optimal equity allocation and portfolio selection, is formulated so as to apply to (at least) reinsurance. In the context of a company with several portfolios (or subsidiaries), representing both liabilities and assets, it is proved that the model has...

I examine competition in the sector of mortgage life insurance, in particular the periodic switching right (PSR), by which the borrower can change his insurer once every period (say, every year). The PSR is likely to have pro competitive effects (lower premium), but by the same move, to lead to...

The age structure of the French population has been experiencing dramatic changes over the past decades and is likely to do so in a near future. The increasing proportion of elder people may modify the saving behaviour of French households. The level of saving, as well as its composition, may be...

This survey reviews the micro-economic foundations of the analysis of life insurance markets. The first part outlines a simple theory of insurance needs based on the life-cycle hypothesis. The second part builds on contract theory to expose the main issues in life insurance design within a...

This paper proposes a new ‘World Volatility Index’, coined WVIX, by constructing the first index that approximates the aggregate volatility level of the G20 countries. The empirical analysis makes use of the factor dynamic conditional correlation model – with an automated methodology to...

The research shows that banking relationships are important to lending. However, few studies focus on the banking relationships in syndicated loans, although these loans have became a major source of financing. The last financial crisis clearly shows the impacts of credit rationing and...

In this paper, we want to characterize the optimal health insurance contract with adverse selection and moral hazard. We assume that policyholders differ by the permanent health status loss and choose an unobservable preventive effort in order to reduce the probability of illness which is...

This paper investigates the impact of health risk on insurance contract with hazard moral. We use a bi-dimensional utility function (wealth and health status). We prove that the type of health risk influences the equilibrium of insurance market. A full coverage is possible with moral hazard....

An F-cone is a pointed and generating convex cone of a real vector space that is the union of a countable family of finite dimensional polyedral convex cones such that each of which is an extremel subset of the subsequent one. In this paper, we study securities markets with countably many...

Dans un contexte de vieillissement de la population, différents scenarii sont envisagés pour réformer l'organisation et le financement de la prise en charge des personnes âgées dépendantes. La place de la prévoyance individuelle dans le financement de la dépendance est à ce titre...