In der vorliegenden Arbeit wird ein Modell beschrieben, mit dem Ungleichverteilungen von VC untersucht werden. Im Zentrum stehen zwei Hypothesen: Die Spezialisierungshypothese, nach deren Aussage kein stattlicher Eingriff erforderlich ist, und die Hypothese der ineffizienten...

We consider a portfolio optimization problem in a Black-Scholes model with n stocks, in which an investor faces both fixed and proportional transaction costs. The performance of an investment strategy is measured by the average return of the corresponding portfolio over an infinite time horizon....

This paper provides a technical description of GEM-PIA, a recursive-dynamic computable General Equilibrium Model for Poverty Impact Analysis in individual countries. The model combines the optimizing behavior of CGE models with the asset portfolio behavior of macromodels, thereby addressing the...

The introduction of the euro marks a milestone in the process of European financial market integration. This paper analyzes the implications of the euro for cross-border banking activities. A portfolio model is used which captures the role of banks as providers of informational and of...

Control of carbon dioxide emissions in developing countries is becoming a key issue in the international climate policy. A critical element for achieving substantial emission reduction in those countries is the installment of new energy technologies. Drawing on the framework of poverty-trap...

CCS (carbon dioxide capture and storage) is an issue which has received increasing attention in the debate on climate change over the last years because of its relative technical simplicity and a large expected potential in reducing carbon dioxide emissions. The coexistence of both strong...

Recent research has shown that agreements centered on the adoption of breakthrough technologies can break the deadlock in international climate negotiations if the mitigation technology exhibits a network externality that transforms full cooperation into a self-enforcing outcome. This paper...

Development assistance has been criticized for a lack of coordination between aid donors. This paper argues that competition for export markets and political support prevents donor countries from closer coordination of aid activities. To test these hypotheses, we perform logit and fractional...