In recent years, voluntary approaches to emission reductions have increasingly been adopted by major companies all over the world and have increasingly been supported by regulatory bodies and public administrations. Despite this world-wide effort to achieve a better environmental performance...

This paper surveys the recent literature devoted to the analysis of the interactions between the adoption of voluntary or negotiated agreements as a tool of environmental policy and market structure. The goal of this survey is twofold. On the one hand, we would like to identify the market...