Are prices or quantities the best regulatory instrument to align private actions with public interests in the presence of externalities? We add another dimension to this ongoing debate by experimentally analyzing the interaction between instrument choice and intrinsic motivation of regulated...

We test the hypothesis that protest participation decisions in an adult population of potential climate protesters are interdependent. Subjects (n = 1,510) from four German cities were recruited two weeks before protest date. We measured participation and beliefs about the other subjects'...

This paper investigates differences between a default, a recommendation, and a mandatory minimum contribution on private provision of a large scale public good. Their interaction with regulator identity and intrinsic motivation on voluntary contributions is the primary focus. Data are from an...

Previous research shows that humans display complexity aversion. In this article, we test for the presence of complexity aversion and its determinants in the context of voluntary climate action, where individual choices interact with the complex regulatory framework of the EU Emission Trading...

We report evidence from a field experiment ($N=561$) on how different reasons for reducing the consumption of red meat (health, climate and animal welfare) impact intentions to change behavior, actual consumption of red meat and the enjoyment of meals. Surprisingly, the three concepts are not...