I will present results from public goods games conducted with 1,406 farmers from Germany, Hungary, the Netherlands, and Poland. While past research has predominantly investigated stated farmers’ preferences from an individual standpoint, this study augments the literature by explicitly considering strategic interdependence and introducing financial rewards for cooperation. I will assess how various factors—group size, thresholds, heterogeneous endowments, leading-by-example, social norms, and highlighting the social optimum—impact farmers’ contributions in public goods game experiments. In addition, I will present two extensions of this study: (1) expert forecasts on treatment effects of the data collection with German farmers and (2) preferences for institutions for the Dutch case.