In many cases consumers cannot observe firms' investment in quality or safety, but have only beliefs on the average quality of the industry. In addition, the outcome of the collective investment game of the firms may be stochastic since firms cannot control perfectly the technology or external...

The paper addresses the problem of information asymmetry between a regulator and the polluting firms and proposes a very simple mechanism where the regulator is free to choose, without communicating in advance to the firms, between two instruments: an effluent fee or a standard: as a result in a...

This article determines the conditions under which the Southern countries should act together, or separately, while negotiating with the North about climate change policy and about the conditions for future Southern engagement. The paper models the international negotiations with complete and...