Relational Voluntary Environmental Agreements with Unverifiable Emissions

Environmental regulation and pollution control may clash against the presence of unverifiable tasks, like source-specific emissions. To tackle this issue, we reshape a voluntary agreement instrument, already available in the existing literature, from a dynamic perspective by means of a relational contracting approach. We define a Relational Voluntary Environmental Agreement (RVEA) in an N firms symmetric context, and show that even if emissions are not contractible across firms, and therefore enforcement cannot be delegated to a third party, if firms are sufficiently patient, a self-enforcing RVEA induces the achievement of the environmental objective. Finally, our welfare analysis reveals a notable result: our RVEA can imply less free riding and be welfare-improving with respect to a Voluntary Environmental Agreement enforced by a third party (along the lines of McEvoy, D. M., and J. K. Stranlund. 2010. "Costly Enforcement of Voluntary Environmental Agreements." Environmental and Resource Economics 47: 45-63).