We conduct a dictator game experiment in which recipients in an initial game become dictators in a second game. When the subjects paired remain the same, the amount sent back is strongly correlated with the amount received, despite the fact that the interaction is anonymous and is known to be...

In the one-shot trust or investment game without opportunities for reputation formation or contracting, economic theory predicts no trusting because there is no incentive for trustworthiness. Under these conditions, theory predicts (a) no effect of pre-play communication, and (b) universal...