Giving (warm-glow plus purely altruistic giving) in the dictator game has been shown to vary with the nature of the endowment (house versus earned money), the action set (giving only versus the option to take), and the type of recipient (anonymous participants versus a charity). The contribution...

We report the results of a laboratory experiment on crowd-out in a voluntary contribution mechanism public good game. In our setting, a standard argument states that a tax should not be effective in raising contributions, because agents respond by reducing voluntary contributions by the amount...