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...

<TABLE> <TD> <img src="/images/publication/2011MO-01.jpg"></TD> <TD>Sous la direction de Marcelin Joanis et Luc Godbout <p> Si le Québec a été frappé moins durement qu'ailleurs par la dernière récession, il fait toujours face aux importants défis économiques qui se posaient avant la récession : la contraction prochaine du bassin de travailleurs...</p></td></td></table>

Sous la direction de Marcelin Joanis et Luc Godbout Si le Québec a été frappé moins durement qu'ailleurs par la dernière récession, il fait toujours face aux importants défis économiques qui se posaient avant la récession : la contraction prochaine du bassin de travailleurs potentiels,...

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...

This paper considers the welfare and policy implications of a merger between environment fi rms (i.e., firms managing environmental resources or supplying pollution abatement goods and services). The traditional analysis of mergers in Cournot oligopolies is extended in two ways. First, we show...