The permanence of land management practices adopted under Agri-environmental

This paper shows that the introduction of a conditional collective bonus in an agri-environmental scheme (AES) can improve farmers' participation and increase land enrolment for lower overall budgetary costs. This monetary bonus is paid in addition to the usual AES payment if a given threshold is reached in terms of aggregate farmer participation. Using a choice experiment, we estimate the preferences of wine growers in the South of France for such a bonus. We show that it contributes to increased expectations of farmers on others' participation, therefore shifting a pro-environmental social norm and favouring the adoption of less pesticide-intensive farming practices.

). This article assesses the potential contribution of economic experiments to evidence-based policy making in the field of agriculture, with a special focus on the European Union (EU)'s Common Agricultural Policy (CAP).

Thoyer (2014). Préférences individuelles et incitations collectives : quels contrats agroenvironnementaux pour la réduction des herbicides par les viticulteurs ?. Revue d'Études en Agriculture et Environnement, 95,

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