This paper uses the Kaldor-Hicks compensation principle to compute the present value (PV) of a non-marginal future event. Three theoretical results stand out: First, decreasing returns to capital create a wedge between the PV of future generations' willingness to pay (WTP) and the PV of their...

This paper explores how a principal with time-inconsistent preferences invests optimally in technology or capital. If the current principal prefers her future self to save more, she can increase current investments complementary to future savings and decrease investments in the strategic...

This paper estimates the labor market effects of being awarded with a training voucher using an instrumental variable approach. In Germany all public sponsored further training programs are allocated through vouchers and the system, we study here, thus represents a major case of the use of...

In many empirical Contingent Valuation studies one finds that household size, i. e. the number auf household members, is negatively correlated with stated household willingness to pay for the realization of environmental projects. This observation is rather puzzling because in larger households...

Solar radiation management (SRM) could quickly offset global warming caused by anthropogenic greenhouse gas emissions. Because SRM would have global side effects, it raises not only technological but also political and social concerns. Therefore, SRM research should be accompanied by a global...

Evaluation of climate policies and other issues requires a variable population setting where population is endogenously determined. We propose and axiomatize the rank-discounted critical-level utilitarian social welfare order. It is shown to ll out the space between critical-level utilitarianism...

This paper summarizes our recent work on the rate of return and cost-benefit ratio of an influential early childhood program.

Wirkungsevaluationen stehen oft vor der Herausforderung, Kausalität zwischen der betrachteten neuen Politikmassnahme und den resultierenden Outcomes herzustellen. Mangelnde Vergleichbarkeit zwischen der Programmgruppe (neue Politik) und der Kontrollgruppe (Status Quo) macht oft eine kausale...

Mit der Einführung von Arbeitslosengeld II wurde auch die behördliche Zuständigkeit für die Grundsicherung einer grundlegenden Reorganisation unterzogen. Während in der überwiegenden Mehrheit der Kommunen in Form der sogenannten Arbeitsgemeinschaften eine Mischverwaltung aus Bundesagentur...

Wir berichten über die Evaluation des Pilotprojektes eines Berliner Sozialamts zur Integration junger Sozialhilfeempfänger in das Erwerbsleben. Dem Workfare-Prinzip folgend war die Teilnahme an dem Programm für die ausgewählten Personen verpflichtend. Wer die Teilnahme verweigerte, erhielt...