Unité mixte de recherche 7235

Risk and Sustainability: Is Viability that far from Optimality?

Michel De Lara, Vincent Martinet, Luc Doyen

Economic analysis addresses risk and long-term issues with dis-counted expected utility, focusing on optimality. Viability theory is based on sustainability constraints to be satis ed over time, focusing on feasibility. We make a bridge between these two approaches by showing that viability is equivalent to an array of degenerate inter-temporal optimization problems. This makes the approach more inter-pretable in economic terms, and especially regarding efficiency. First,the deterministic case is examined. A particular emphasis is put on the connections between the viability kernel and the minimal time of crisis function. Then, we present stochastic viability with the notions of viable scenario and maximal viability probability. We show that the maximal viability probability shares dynamic programming properties with optimal discounted expected utility. Thus, both exhibit time-consistency, which may be a basis for an axiomatization of criteria under risk and long run for public decision-making.

AGENDA

jeudi 8 décembre 2022

Lunch

Georges Prat

12h - 13h, salle 110

Modeling ex-ante risk premiums in the oil market

lundi 12 décembre 2022

Law, Institutions and Economics in Nanterre (LIEN)

Clément Brébion (Copenhagen BS)

En salle 614 et en distanciel

Unemployment Insurance Eligibility and Employment Duration

mardi 13 décembre 2022

Développement Durable Environnement et Energie (DDEE)

Nicolas Astier (Paris School of Economics)

16h-17h

Riding together: eliciting travelers’ preferences for long-distance carpooling

mercredi 14 décembre 2022

Économies du monde musulman

Mohamed Touati Tliba (École Supérieure de Commerce, Alger)

The scientific wealth of nations with special reference to MENA region: a cross-country productivity analysis of academic research

jeudi 15 décembre 2022

Doctorants

Pablo Aguilar Perez

Profitability and solvency of French insurance companies in an environment of low interest rates

jeudi 15 décembre 2022

Groupe de travail « Intelligence artificielle »

Matthieu Lapaty (UPMC)

TBA

jeudi 15 décembre 2022

Groupe de travail Economie Comportementale

Magali Dumontet

TBA

jeudi 5 janvier 2023

Lunch

Mehdi Aït-Hamlat, Florian Baudoin, Tanguy Bonnet

Nouveaux doctorants

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