Santé
Longévité, vieillissement & dépendance

Économie & Développement mondial

Économie comportementale & Sciences de la décision

Macroéconomie

Bien-vieillir & Longévité

Modèles économétriques & Mathématiques

Post-Doctoral Fellowships

Luxembourg

Croissance économique, santé et mortalité par âge : endogénisation de l'espérance de vie

Il y a un âge où l’on a plutôt tendance à acheter des bonbons avec son argent de poche et un âge, plus avancé, où l’on est plutôt intéressé par l’achat d’une voiture ou d’une maison. En somme, le comportement économique de chacun dépend fortement de son âge. L’objectif de Bity Diene à travers son travail est de mettre en relation les processus liés à l’âge, tels que les changements démographiques et les comportements de consommation ou d’économie, avec les politiques publiques.
Dans de nombreux pays, l’augmentation de l’espérance de vie est en partie due aux investissements dans les politiques de santé publique nationales. Il reste cependant à comprendre ce que cet investissement implique en termes de comportement et de croissance économiques individuels. Bity Diene étudie non seulement ces problématiques à l’aide de modèles statistiques sophistiqués, mais elle se penche aussi à la fois sur les pays développés et en voie de développement.
Ses travaux nous aideront à mieux comprendre comment les changements à venir dans la mortalité liée à l’âge influencent les dynamiques économiques aux niveaux individuels et nationaux.

Quel âge achetez-vous ?

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I have contributed on these topics highlighting some key aspects in the modelling of epidemics for economic growth. I also build projected data combined with a theoretical modelling to capture crucial consequences of the AIDS pandemic such as the fall in life expectancy, the decline in schooling time and labour productivity, in addition to other dramatic effects on saving incentives. I also investigate the interactions between longevity and economic growth. In particular, I show the growth enhancing effect of longevity at low levels of development and longevity, by incorporating various demographic structures.

Impact of the AXA Funding
The ambitious challenge of my post-doctoral project financed by AXA lays on public and private health expenditures, also on the instantaneous probability of death, labour productivity, life expectancy, savings and all variables which are age-dependent. Models proposed in this project allow investigating a wide range of subjects, from demography and the underlying problems such as mortality to economic problems such as produc tivity of workers and the agents' consumption and savings behaviour.
Two main problems are raised, the first one concerns the impact of public and private health spending on the economic growth in developed countries, but also problems generated by longer life expectancy. And the second one concerns what happened or could happen in the developing countries. The project consists in endogenizing life expectancy via public and private health expenditures. This would provide a richer (and more realistic picture) of the relationship between life expectancy and economic growth. Admittedly, a substantial part of the rise in longevity registered in the twentieth century is due to rising (and more efficient) health expenditures, which was in turn made possible by better economic conditions. Incorporating health expenditures in the set-up will then result in a better and more precise appraisal of the relationship between longevity and economic growth.
To this end, AXA Research Fund makes all the difference for me. Indeed, the research proposal (building upon the topics of measuring and assessing risk, modelling the behaviour of economic agents in the face of risk and health economics) will clearly address policy issues which can be of relevant interest to insurance companies. A grant from a private insurance company like AXA to pursue the works that I began during my thesis is very gratifying, because it means that my research can interest beyond the public sphere. And to obtain this grant from AXA with its world-renowned can be only a pride and an honour for me.

To add or modify information on this page, please contact us at the following address: community.research@axa.com