Predaceous and parasitic insects provide control of important citrus pests. However, many pesticides are toxic to these beneficials. Using California citrus grower survey data, this article tests whether landscape-level use of pesticides affects the presence of and reliance on Aphytis melinus,...

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...

L’objectif de cet article est d’analyser les facteurs qui influencent le comportement d’adoption d’un système informatisé de traçabilité par les firmes industrielles françaises et plus spécifiquement le rôle respectif de leurs environnements industriels et spatiaux. La...