This paper proposes a Near Explosive Random-Coefficient autoregressive model for asset pricing which accommodates both the fundamental asset value and the recurrent presence of autonomous deviations or bubbles. Such a process can be stationary with or without fat tails, unit-root nonstationary...

Expected Shortfall (ES) has been widely accepted as a risk measure that is conceptually superior to Value-at-Risk (VaR). At the same time, however, it has been criticized for issues relating to backtesting. In particular, ES has been found not to be elicitable which means that backtesting for ES...

Basel II and Solvency 2 both use the Value-at Risk (VaR) as the risk measure to compute the Capital Requirements. In practice, to calibrate the VaR, a normal approximation is often chosen for the unknown distribution of the yearly log returns of financial assets. This is usually justified by the...

Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit it. One of them is the existence of systemic risk that affects all the policies at the same time. We introduce here a probabilistic approach to examine the consequences of its...

One possible way of risk management for an insurance company is to develop an early and appropriate alarm system before the possible ruin. The ruin is de ned through the status of the aggregate risk process, which in turn is determined by premium accumulation as well as claim settlement out-go...

In this paper, we shed light on the selection of the benefi ciaries from the French competitiveness cluster policy which was launched in 2005 and extended to 2012. We disentangle the selection and self-selection eff ects, as emphasized in the theoretical literature on regional and industrial...

Will employment instability be the employment pattern tomorrow? Many studies support this view which is first discussed on the basis of various statistical studies already carried out. A general trend of employment instability is not proved to be true by statistical data. These data show that...

Analyse de l'accaparation d'actifs (asset grabbing) lors des privatisations, sur les marchés financiers et dans le "shadow banking"par des oligarques comme émergence d'une économie où le "gagnant rafle tout" (winner take all) formant un secteur "cupidaliste". Son apparition dans l'économie...

In 1998 the Fifty-first World Health Assembly passed the "health-for-all policy for the twenty-first century". During this assembly the Member States of the World Health Organization (WHO) reaffirmed their commitment to the principle that "the enjoyment of the highest attainable standard of...

A government agency delegates to a provider (hospital, medical gatekeeper, school, social worker) the decision to supply a service or treatment to individual recipients. The agency does not perfectly know the distribution of individual treatment costs in the population. The single-crossing...