Criteria for initiation of highly active antiretroviral treatments (HAART) in HIV-infected patients remain a matter of debate world-wide because short-term benefits have to be balanced with costs of these therapies, and restrictions placed on future treatment options if resistant viral strains...

This paper revisits the tragedy of the commons when agents have different capabilities in both production and encroachment activities, and can allocate their time between them. Under fairly general assumptions on production and encroachment technologies, an individual's expected income is convex...

In this general equilibrium model, justice and police institutions are treated as a mechanism that induces individuals to extend some desirable productive effort. This determines individual encroachment activities which in turn determine the proportion of aggregate production that fails to be...

Criteria for initiation of highly active antiretroviral treatments (haart) in hiv-infected patients remain a matter of debate world-wide because short-term benefits have to be balanced with costs of these therapies, and restrictions placed on future treatment options if resistant viral strains...

A model of location choice by Cournot oligopolists is presented, under the assumption that R&D spillovers depend on the distance between firms. We show that a variety of patterns emerge. Agglomeration is optimal under certain assumptions. Geographical dispersion in a two-dimensional plane is...

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...