The material contained herein is supplementary to the article named in the title and published in the American Journal of Agricultural Economics, Volume 90, Number 1, February 2008

This article presents experimental tests of a linear and a nonlinear ambient tax mechanism that involve modest information requirements for the regulator. When agents are not allowed to communicate, both tax mechanisms result in emission levels that approximate the social optimum. When agents...

This article considers the regulation of nonpoint source water pollution through the use of a voluntary-threat approach, which allows a polluter group to meet a standard voluntarily but imposes an ambient tax upon noncompliance. In particular, we develop an "endogenous" voluntary-threat approach...

This paper presents an experimental investigation of the three ambient-based mechanisms proposed by Segerson [J. Environ. Econom. Management 15, 87-98 (1988)] for controlling emissions from a group of nonpoint source polluters: a marginal tax/subsidy, a fixed penalty, and a mechanism that...

This article presents experimental tests of a linear and a nonlinear ambient tax mechanism that involve modest information requirements for the regulator. When agents are not allowed to communicate, both tax mechanisms result in emission levels that approximate the social optimum. When agents...

This article considers whether communication can improve the efficacy of incentive mechanisms designed to correct the problem of moral hazard in groups. In particular, we use experimental economics methods to study environmental targeting instruments proposed by Segerson (1988) for regulating a...

In this paper we build on a voluntary mechanism introduced by Segerson and Wu (2006) that uses the threat of an ambient tax to induce nonpoint source polluters to reduce emissions. In addition to reviewing Segerson and Wu's policy, we propose a new voluntary/threat policy that offers some...