Subsequently published as:"Incorporating Motivational Heterogeneity into Game Theoretic Models of Collective Action." Public Choice, 117, 2003, 295-315."Understanding cooperation in the context of social dilemma games is fundamental to understanding how alternative institutional arrangements may...

"Many natural resources can be effectively exploited mainly by using capital-intensive technologies. We develop a bargaining model with endogenous inside and outside options to analyze the interactions between local communities having at least some degree of informal claims over natural...

"Voluntary programs have become widespread tools for governments and non-governmental actors looking to shape industry behavior. Voluntary programs can be conceptualized as club goods that provide non-rival but potentially excludable benefits to members. For firms, the value of joining an...

"In symmetric commons dilemmas, peer sanctioning, i.e. the possibility to gather information about the resource use of others and to sanction overuse, can be an effective structural solution in terms of resource conservation. However, most real world commons are characterized by structural...

"The outcomes of a series of tests of the ARDI (Actors, Resources, Dynamics, and Interactions) method in complex cases or conflict-ridden situations is presented. ARDI is part of a companion modeling approach that makes it possible to engage a broad spectrum of stakeholders in the design and...

"The most critical task facing humanity today is the creation of a shared vision of a sustainable and desirable society, one that can provide permanent prosperity within the biophysical constraints of the real world in a way that is fair and equitable to all of humanity, to other species, and to...

"Institutional arrangements are key drivers of the use of common-pool resources (CPR). The analysis of existing arrangements requires a framework that allows research to describe a case study systematically and diagnose the institutional setting. Based on a sound understanding of current...

"In this paper we employ experimental economic methods to examine the effect of market structure on the use of marketable emissions permits. In particular, we ask whether firms can strategically manipulate a product market using marketable emissions permits. Subjects participate in two markets,...