In this paper, we study a voluntary contribution mechanism withone-way communication. The relevance of one person’s words is assessedby assigning exogeniously the role of the ‘communicator’ to onegroup member. Contrary to the view that the mutual exchange ofpromises is necessary for the...

We report three repetitions of Falk and Kosfeld's (2006) low and medium control treatmentswith 364 subjects. Each repetition employs a sample drawn from a standard subject pool ofstudents and demographics vary across samples. Our results largely conict with those of theoriginal study. We mainly...