We propose a dynamic graph-theoretic model for ecosystem management as a control over networked system composed of target nodes and unmarked nodes. The network is represented by a complete graph, in which all vertices are connected by a unique edge. Target nodes are attracted by the objective...

We propose a dynamic graph-theoretic model for ecosystem management as a control over networked system composed of target nodes and unmarked nodes. The network is represented by a complete graph, in which all vertices are connected by a unique edge. Target nodes are attracted by the objective...

Forest management aims at building ecological networks that minimize the impacts on timber production. We formalize the construction of ecological networks in forest environments as the optimal control dynamic graph-theoretic problem. The ecological network is based on a set of bioreserves and...

The invasion by the spreading species is one of the most serious threats to biodiversity and ecosystem functioning. Despite a number of empirical and theoretical studies, there is still no general model about why or when settlement becomes invasion. The purpose of this work is to test a model of...

Les auteurs reconsidèrent la réglementation environnementale, sous l'hypothèse que les technologies et services de réduction de la pollution sont offerts par des entreprises spécialisées formant un oligopole. On y montre que chaque approche réglementaire (taxes et quotas sur les...

This paper examines the effect of emission taxes on pollution abatement and social welfare, when abatement goods and services are provided by a Cournot oligopoly with free-entry. We point out initially that a higher tax not only increases demand for abatement; it also makes polluters less...

Cet article étudie avec un regard nouveau la subvention environnementale lorsque les pollueurs achètent leur bien ou service de dépollution auprès d’une industrie spécialisée, dite éco-industrie. L’éco-industrie est ici oligopolistique. Le régulateur est donc confronté à une...

The invasion by the spreading species is one of the most serious threats to biodiversity and ecosystem functioning. Despite a number of empirical and theoretical studies, there is still no general model about why or when settlement becomes invasion. The purpose of this work is to test a model of...

We consider two economic agents, a timber and log supplier and a lumber manufacturer, endowed with the mean-variance utility preferences that negotiate according to the Nash bargaining game. We study both negotiation and renegotiation between a supplier that can be either public-oriented or...

Public authorities (often local) frequently mandate public or private agencies to manage their natural resources. Contrary to the agency, which is an expert in resource management, public authorities usually do not know the sustainable harvest level. In this paper, we model the contractual...