Die Anforderungen an Unternehmen auf dem Gebiet des Umweltschutzes wachsen von Jahr zu Jahr. Sie werden durch gesetzliche Vorgaben und vom Verbraucher definiert, gleichzeitig steigen die umweltinduzierten Kosten. Um den höheren Um­ weltkosten entgegenzuwirken, bedarf es eines wirksamen und...

The paper sets up a two-region endogenous growth model to discuss growth and regional convergence of unified Germany. It emphasises the role of private and public capital accumulation during the developing process. The theoretical part derives fiscal policy rules which establish convergence of...

On 3 June 2020, the German government announced a EUR 130 billion fiscal stimulus package to stimulate market demand and jumpstart the economy in the wake of the COVID-19 pandemic lockdown in the spring of 2020. The most prominent measure of this package is an unconventional fiscal policy in the...

Common integrated assessment models produce the counterintuitive result that higher risk aversion does not lead to stronger near-term abatement. This paper re-examines this result with a DICE model that is fully coupled with a thermohaline circulation model. It also features Epstein-Zin utility...

The quintessence of recent natural science studies is that the 2°C target can only be achieved with massive emission reductions in the next few years. The central twist of this paper is the addition of this limited time to act into a non-perpetual real options framework analyzing optimal...

Model uncertainty is inherent in the design of optimal environmental policy. We investigate the consequences in a simple linear model, where the aim of the policymaker is to stabilize the carbon content of the atmosphere. We study how decision-makers' concerns about robustness alter policy using...