 Similarly, Schram and Charness’ (2015) proposed a procedure for inducing a shared understanding of the relevant rule of behavior, in the lab. In short, Schram and Charness had participants in dictator games receive advice from a group of third parties. The information received simply revealed what a group of uninvolved subjects thought dictators ought to do: as such, the information received generated an exogenous variation in the dictators’ normative expectations. Schram and Charness’ results show that choices are indeed affected by this information.