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 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...

The regulation of nonpoint source water pollution from agriculture is a complex problem characterized by a multiplicity of polluters, informational asymmetries, complex fate and transport processes, and stochastic environmental factors. Taken together, these characteristics make regulatory...

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...