Relying on a small natural field experiment with random assignment of treatments, I estimate effects of three core elements of most monitoring and enforcement practices: self-reporting, audit frequency and specific deterrence. I find evidence of evasive reporting of violations in self-audits, as...

Studies have shown that there are differences in cooperative behavior across countries. Furthermore, differences in the use of and the reaction to the introduction of a norm enforcement mechanism have recently been documented in cross-cultural studies. We present data that prove that stark...

An antitrust authority deters collusion using fines and a leniency program. Unlike in most of the earlier literature, our firms have imperfect cumulative evidence of the collusion. That is, cartel conviction is not automatic if one firm reports: reporting makes conviction only more likely, the...

Using a natural experiment from Germany, we show that temporary placebased subsidies generate persistent effects on economic density. We identify employment and capital formation as main channels for higher income per square kilometer. As the spatial regression discontinuity design allows us to...

In this paper we provide a political game where agents decide whether to become legislators or politicians. Legislators determine the political institutions constraining politicians\' behavior and politicians compete for gaining the power to make decisions about the level of the public good. We...

Authorities often lack information for efficient regulation of the commons. This paper derives a criterion comparing prices versus tradable quantities in terms of expected welfare, given uncertainty, optimal policy and endogenous cost structure. I show that one cannot determine which regulatory...

The marginal cost of public funds (MCF) is substantial in generous welfare state countries according to Kleven and Kreiner (2006). Their main estimate for the Danish economy exceeds 2 mainly because taxation distorts labor force participation. Adjustments in social transfers which alleviate such...

We propose a theory of tax centralization in politico-economic equilibrium. Taxation has dynamic general equilibrium implications which are rationally internalized at the federal, but not at the regional level. The political support for taxation therefore differs across levels of government....