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Species Preservation and Biodiversity Value: A Real Options Approach

Kassar, Ilhem; Lasserre, Pierre - Centre Interuniversitaire de Recherche en Analyse des … - 2002

We evaluate biodiversity in a real options framework, when the resources in use are substitutable. We examine optimal … conservation decisions given that a biodiversity loss is irreversible and that future use values are uncertain. While species … of the marginal species. As we show in the two-species homogenous model, increased volatility raises biodiversity value …

Persistent link: https://www.econbiz.de/10005100634

Selective Penalization Of Polluters: An Inf-Convolution Approach

Long, Ngo Van; Soubeyran, Antoine - Centre Interuniversitaire de Recherche en Analyse des … - 2002

In this paper, we consider an asymmetric polluting oligopoly: firms have different production costs, and their pollution characteristics may also be different. We will demonstrate that, in this case, optimal tax rates per unit of emission are not the same for all firms. We call this property...

Persistent link: https://www.econbiz.de/10005100587

Ressources renouvelables et non renouvelables, impatience et progrès technique exogène

Amigues, Jean-Pierre; Long, Ngo Van; Moreaux, Michel - Centre Interuniversitaire de Recherche en Analyse des … - 2004

There is a large literature on the optimal order of exploitation of natural resources. We explore the impact of specific technical progress that enables the saving of resource inputs in production on the order of exploitation. Models of growth tend to assume uniform and global technical progess....

Persistent link: https://www.econbiz.de/10005100620

Overcoming Natural Resource Constraints Through R&D

Amigues, Jean-Pierre; Long, Ngo Van; Moreaux, Michel - Centre Interuniversitaire de Recherche en Analyse des … - 2004

We study the optimal policies of research and development in the context of a resource-exploiting economy. We distinguish two cases: non-renewable resources and renewable resources. In the first case, we show that it is useful to construct an index of scarcity, which is the product of the level...

Persistent link: https://www.econbiz.de/10005100671

Relative Consumption and Resource Extraction

Alvarez-Cuadrado, Francisco; Long, Ngo Van - Centre Interuniversitaire de Recherche en Analyse des … - 2008

This paper presents a simple model of resource extraction where preferences are household's preferences depend on relative consumption levels. We identify two dimensions along which consumption externalities distort the efficient extraction of resources: (i) the static trade-off between...

Persistent link: https://www.econbiz.de/10005100852

Collusive Allocation of Tradeable Pollution Permits

Long, Ngo Van; Soubeyran, Antoine - Centre Interuniversitaire de Recherche en Analyse des … - 1998

We show that when polluting firms are Cournot oligopolists, they may have an incentive to use the market of pollution permits as a means of indirectly coordinating their outputs. If firms are initially identical, trade in pollution permits may result in an asymmetric oligopoly. The case where...

Persistent link: https://www.econbiz.de/10005101025

Emission Taxes and Standards for an Asymmetric Oligopoly

Long, Ngo Van; Soubeyran, Antoine - Centre Interuniversitaire de Recherche en Analyse des … - 2001

We characterize optimal firm-specific emission tax rates, and optimal firm-specific emission standards, and provide intuitive explanation on differential treatments. We show that there is a unified framework for deriving firm-specific policy measures. When firms are identical, the optimal policy...

Persistent link: https://www.econbiz.de/10005101044

Recursive Intergenerational Utility in Global Climate Risk Modeling

Ha-Duong, Minh; Treich, Nicolas - Centre Interuniversitaire de Recherche en Analyse des … - 1999

This paper distinguishes relative risk aversion and resistance to intertemporal substitution in climate risk modeling. Stochastic recursive preferences are introduced in a stylized numeric climate-economy model using preliminary IPCC 1998 scenarios. It shows that higher risk aversion increases...

Persistent link: https://www.econbiz.de/10005169013

A Real Option Approach to the Protection of a Habitat Dependent Endangered Species

Abdallah, Skander Ben; Lasserre, Pierre - Centre Interuniversitaire de Recherche en Analyse des … - 2008

We use a real option approach to determine optimally when a social planner has to stop or resume logging in situations where an endangered species relies on forest habitat for its survival, and that habitat evolves stochastically. The model incorporates economic, ecological and social features,...

Persistent link: https://www.econbiz.de/10005100876

Dynamics of Provision of Threshold Public Goods

Dragicevic, Arnaud; Engle-Warnick, Jim - Centre Interuniversitaire de Recherche en Analyse des … - 2011

Agents face an ambiguous risk of biodiversity survival as well as ambiguous expected losses from its extinction. As a … collectivity, agents are faced with the option of privately funding the protection of biodiversity for biomedical research. We …

Persistent link: https://www.econbiz.de/10009147628