An increase in the demand for agricultural goods leads to the use of more intensive cultivation methods. Though Ricardo sees no difficulties in the intensification process, their existence is revealed by the possible occurrence of multiple equilibria. A general theory of intensive rent is based...

Nous proposons d'étudier dans un modèle à deux secteurs de production, les effets d'une incertitude portant sur la qualité de l'environnement sur les comportements de choix de portefeuille et d'épargne des agents. Nous supposons que les individus investissent dans les firmes par...

The well known economic advantage of tradable permits over command and control obviously vanish if firms do not trade because of policy uncertainty. In fact, uncertainty about changes in the permits program could make firms reluctant to invest in tradable permits. This article proposes to give...

This article study the impact of risk perception on environmental policy. The environmental quality is uncertain and can be improved by voluntary contributions. We introduce then an heterogeneity in individuals' risk perceptions. In this context, the social optimum can be decentralized by tax...

In this paper, we analyze the choice of primary prevention made by individuals who bear a risk of being in bad health and an additive risk (of complications) that occurs after a disease has been diagnosed. By considering a two argument utility (depending on wealth and health), we show that the...

In this paper, we analyze the determinants of primary prevention and the social optimum. First, we analyze optimal decisions on primary prevention and savings when individuals face a health risk involving expenses that can not be covered by any insurance (private or public). To manage health...

The demographic structure of a country influences economic activity. The "second dividend" modifies growth. Accordingly, in general equilibrium, the second dividend and the demographic structure are interrelated. This paper aims at assessing empirically the "second dividend" in a dynamic,...

This paper investigates the link between wholesale electricity prices in Europe and the CO2 cost, i.e. the price of European Union Allowances (EUAs), over the two first phases of the European Union Emissions Trading Scheme (EU ETS). We set up a theoretical framework and an empirical model to...

In this paper we study the dynamic general equilibrium path of an economy and the associated optimal growth path in a two-sector overlapping generation model with a stock pollutant. A sector (power generation) is polluting, and the other (final good) is not. Pollution is regulated by tradable...