We show in a public goods experiment on three continents that conditional cooperation is a universal behavioral regularity. Yet, the number of conditional cooperators and the extent of conditional cooperation are much higher in the U.S.A. than anywhere else.

This paper focuses on the increase in slack costs due to municipality amalgamation, which is pushed forward in several countries to achieve economies of scale. Employing the stochastic frontier cost function to estimate the inefficiency of local public expenditure due to slack, this study...