Experimental methods in economics respond to circumstances that are not completely dictated by accepted theory or outstanding problems. While the field of economics makes sharp distinctions and produces precise theory, the work of experimental economics sometimes appear blurred and may produce...

A large group of experimentalists have analyzed the nature of free riding in the context of so-called public exchanges, a laboratory device for investigating the consequences of various aspects of non-rivalry in consumption related to voluntary public goods. However, there have been few attempts...