Comparison of the expected timing of contributions according to the simulations with the observed timing in the experiments of Milinski et al..
The bold dashed lines show the linear trend, indicating that in the experiments and in our simulations contributions tend to be delayed towards later stages of the game. Parameters were chosen to fit the rules of the experiment, i.e. group size , number of rounds , initial endowment , and individuals are allowed to contribute either , or monetary units per round. The other parameters are set to the values in the previous figures.