A central question in climate policy is whether early investments in low-carbon technologies are a useful first step towards a more effective climate agreement in the future. We introduce a climate cooperation model with endogenous R&D investments where countries protect their international...

Challenges in global politics like climate change, maritime piracy and fighting highly contagious diseases concern global public goods. The related policy decisions are mostly made by teams. In contrast, economic models of global public goods typically assume a single rational decision-maker. We...

Für von der deutschen Umsatzsteuer befreite Finanzdienstleistungen ist der Vorsteuerabzug grundsätzlich ausgeschlossen. Da die meisten Finanzdienstleistungsunternehmen auch zum Vorsteuerabzug berechtigte Umsätze tätigen, sind die Eingangsumsätze dieser Unternehmen in einem zum...

In Deutschland steht wieder einmal eine große Steuerreform an. Zum Jahresbeginn 2001 soll das Steuersenkungsgesetz in Kraft treten, in dessen Zentrum grundlegende Änderungen bei der Einkommens- und Unternehmensbesteuerung stehen. Diese Steuerreform ist oft mit einer im internationalen...

On May 11, 2001, readers of the Berliner Zeitung were invited to participate in an ultimatum bargaining experiment played in the strategy vector-mode: Each participant chooses not only how much (s)he demands of the DM 1.000-pie but also which of the nine possible offers of DM 100, 200, ..., 900...

Lacking payment systems become a bottleneck for the vision of the Information Economy. In many cases payments of fractions of a cent, so-called micropayments, are of particular interest. In this paper we propose a framework to evaluate payment systems. The framework consists of a well structured...

National reductions of CO2 emissions as a way to manage unilaterally the use of global environmental resources can be interpreted as the noncooperative provision of an international public good. This paper analyses two basic sources of inefficiency if countries abate their emissions...