We study the political determinants of policy experimentation during the US welfare reform. Among other changes, this reform shifted the autonomy to implement welfare policies from the federal government to the individual states. In line the predictions from a political agency model, we find...

This paper studies how imposing norms on contribution behavior affects individuals' intrinsic motivation. We consider an urban area in Germany where the Catholic Church collects a local church levy as a charitable donation, despite the fact that the levy is legally a tax. In cooperation with the...

We consider a model of redistributive politics in which politicians have the possibility to raise some debt and to implement a pie-increasing reform, i.e. a reform creating a net increase in the total taxable endowment. The reform benefits occur in the future and the reform costs have to be paid...

This paper provides necessary and sufficient conditions for the existence of Pareto-improving tax reforms. The conditions can be expressed as sufficient statistics and have a wide range of potential applications in public finance. We discuss one such application in detail: the introduction of...

Are reforms towards individual taxation politically feasible? Are they desirable from a welfare perspective? We develop a method to answer such questions and apply it to the US federal income tax since the 1960s. Main findings are: As of today, Pareto-improvements require a move away from joint...