Introduction : the food commons are coming! / Jose Luis Vivero-Pol, Tomaso Ferrando, Olivier de Schutter and Ugo Mattei -- The idea of food as a commons : multiple understandings for multiple dimensions of food / Jose Luis Vivero-Pol -- The food system as a commons / Giacomo Pettenati, Alessia...

The motivation crowding effect suggests that an external intervention via monetary incentives or punishments may undermine (and under different indentifiable conditions strengthen) intrinsic motivation. As of today, the theoretical possibility of crowding effects is widely accepted among...