Die von Spanien, Italien und Portugal zwischen 2010 und 2014 unternommenen fiskalischen Konsolidierungsanstrengungen haben entgegen ihrem Ziel nicht zu einer Reduzierung der Staatsschuldenquote dieser drei Länder geführt. Dieser Wochenbericht untersucht, warum die teilweise drastischen...

Eine Neugestaltung der europäischen Fiskalpolitik ist ein Kernthema aktueller Reformüberlegungen. Dabei wird insbesondere über die Schaffung eines europäischen Stabilisierungsmechanismus diskutiert. Diese Studie befasst sich mit den zu erwartenden makroökonomischen Auswirkungen eines...

We investigate a class of optimal control problems that exhibit constant exogenously given delays in the control in the equation of motion of the differential states. Therefore, we formulate an exemplary optimal control problem with one stock and one control variable and review some analytic...

In this paper, we extend the well known result that hyperbolically discounting agents tend to postpone costs into the future. In a simple model we show that, without commitment to the ex ante optimal plan, no investment in environmental protection is undertaken over the whole time horizon, no...

The prevailing literature discusses intergenerational trade-offs predominantly in infinitely-lived agent models despite the finite lifetime of individuals. We discuss these trade-offs in a continuous time OLG framework and relate the results to the infinitely-lived agent setting. We identify...

We develop a perpetual youth model to investigate how longevity affects economic growth and welfare. Life expectancy is determined by individuals’ investments in healthcare. We find that improvements in the healthcare technology always increase the steady state growth rate. Although the effect...

We examine a global refunding scheme for mitigating climate change. Countries pay an initial fee into a global fund that is invested in long-run assets. In each period, part of the fund is distributed among the participating countries in relation to the emission reductions they have achieved in...

We design a global refunding scheme as a new international approach to address climate change. A global refunding system allows each country to set its carbon emission tax, while aggregate tax revenues are partially refunded to member countries in proportion to the relative emission reductions...

In a dynamic general equilibrium model we study the interplay between gradual and structural change in the transition to a low-carbon energy industry. We focus on the welfare-theoretic consequences of diverging social and private rates of time preference and a time-to-build feature in capital...