Schott et al. (2007) have shown that the “tragedy of the commons” can be overcome when individuals share their output equally in groups of optimal size and there is no communication. In this paper we investigate the impact of introducing communication in groups that may or may not be linked...

This paper describes the results of using a new computable general equilibrium model for the European Union that incorporates local and transboundary externalities to evaluate the effects of trade policy reform. In contrast to all past theoretical and empirical research, this model includes the...

The purpose of this paper is to describe the implications of the collective model of household behavior for the methods used to estimate the economic value of non-marketed environmental resources. The effects of public good and risk are considered, along with revealed and stated preference...

We examine the formation of International Environmental Agreements (IEAs). We extend the existing literature by endogenizing the reaction of the IEA's members to a deviation by a member or a group of members. We assume that when a country contemplates exiting or joining an agreement, it takes...

Optimal harvesting of prey in a predator–prey ecosystem is studied under the condition that the existence of the predator has value. Predators (birds) and humans (fishers) compete for prey (shellfish). The behavior of the system is studied and conditions for optimal control are deduced....

Certain types of corporate social responsibility (CSR) activities can generate an ‘insurance-like’ benefit for firms (Godfrey, 2005). Thus far, this risk management hypothesis has been verified for the effects of firm-specific negative events. We argue that this insurance-like benefit of...

This review considers the role of environmental effects in transport investment appraisal, mainly from the perspective of cost-benefit analysis, the most widely adopted appraisal technique. Although the basic principles of CBA are straightforward, several complications are identified that may...

This discussion paper led to a publication in <A href="http://www.sciencedirect.com/science/article/pii/S0095069611000556">'Journal of Environmental Economics and Management'</A>, 62(2), 229-40.<p>We analyze how the threat of a potential future regime shift affects optimal management. We use a simple general growth model to analyze four cases that involve combinations of stock...</p></a>

We study the effects of energy saving technological progress and substitution of renewable energy resources with non-renewable resources on natural resource depletion and long run growth. We develop a growth model in two-period overlapping generations framework incorporating the presence of both...