The imbalances in bargaining power between the contracting parties in the food supply chain have drawn much scholarly attention but have also been closely examined by policy makers. The European Commission is committed to facilitate the restructuring of the agricultural sector by encouraging the...

This paper presents a formal theory of reciprocity. Reciprocity means that people reward kind actions and punish unkind ones. The theory takes into account that people evaluate the kindness of an action not only by its consequences but also by the intention underlying this action. The theory...