`The great merit of the book is that it demonstrates that an interdisciplinary approach is not only possible but also fruitful. The book should not only be recommended to all who are especially interested in contribution behavior in a specific step-level public good environment. It is also a rich source to all who are in ... Read moresearch for a comprehensive and profound analysis of human decision making and belief forming.' European Journal of Political Economy, 14 (1998) `... this is definitely recommended reading material, especially for those interested in the public goods issue, and social dilemmas in a more general sense. But since it is so rich in its overview of the recent experimental literature and methods, it will also prove very useful for all those interested in economic behavior in general, and in expectations, preferences, and learning in particular.' Journal of Evolutionary conomics, 9:3 (1999) Show Less