The preservation of biodiversity requires the protection of endangered species' habitats. In Canada, approximately 60% of these habitats are located on private lands. We start by analysing the obstacles to the protection of endangered species' habitats, with special attention to the compensation...

In this paper, we reexamine the relationship between performance and concentration in the light of modern oligopoly theory. More specifically, we examine the link that exists between firm size inequality (FSI) and market power. Traditional theory predicts that market power should be higher in...

Selon l'hypothèse de Porter, des réglementations environnementales (RE) strictes doivent avoir un impact positif sur la productivité des firmes touchées. Dans ce papier, nous revoyons les arguments théoriques et empiriques entourant cette hypothèse. Nous montrons qu'il existe peu de...

Cet article présente de manière non technique certains des fondements théoriques possibles de l'hypothèse de Porter selon laquelle, des réglementations environmentales strictes peuvent améliorer le profit des industries qui y sont soumises. Après une brève présentation de l'hypothèse,...

We consider a market with three competitors, two of which decide to cooperate. Firms first choose capacity under demand uncertainty then compete in quantities after the uncertainty has been resolved. We specify strategic alliance (SA) as an agreement where two airlines jointly choose capacity...

In this paper, we examine the relationship between economic and environmental performance. More specifically, we analyse the impact of SO2 reduction in the eighties (1980-1992) on productivity growth, technical efficiency and technological progress for a set of 12 OECD countries. Our timeframe...

In this paper, we explore automobile fuel efficiency policies in the presence of two externalities i) a global environmental problem and ii) international innovation spillovers. Using a simple model with two regions, we show that both a fuel tax and a tax on vehicles based on their fuel economy...