Reasons to grant immigration amnesties include the intention to reduce the weight of the informal sector and the attempt to identify employers of undocumented workers. However, it is incontestable that potential fiscal gains are important: tax revenues are crucial in all kinds of amnesties....

The paper examines the issue of designing and implementing policy measures to control complex agricultural externalities. Complex externalities refer to the situation where a production (firm on firm) externality coexists with a detrimental (firm on society) externality. The paper identifies the...