Auch in Deutschland gewinnen Bestrebungen an Boden, einzelne Verkehrsinfrastrukturprojekte privat finanzieren zu lassen. Am ehesten ist dies bei Brücken oder Tunneln möglich, da bei solchen Objekten meist nicht auf konkurrierende gebührenfreie Wege ausgewichen werden kann. Dies trifft...

Do democratically chosen rules lead to more cooperation and, hence, higher efficiency, than imposed rules? To discuss when such a "dividend of democracy" obtains, we review experimental studies in which material incentives remain stacked against cooperation (i.e., free-riding incentives prevail)...

Entrusting the power to punish to a central authority is a hallmark of civilization. We study a collective action dilemma in which self-interest should produce a sub-optimal outcome absent sanctions for non-cooperation. We then test experimentally whether subjects make the theoretically optimal...