Unter heutigen Rahmenbedingungen muss davon ausgegangen werden, dass der globale Primärenergieverbrauch sich bis 2050 mehr als verdoppeln wird und die energiebedingten CO2-Emissionen sogar um 137% steigen. Die Abhängigkeit der OECD-Staaten von Energieimporten würde weiter wachsen und der...

Firms grant to their employees non-tradable stock options as an incentive device. Is the opportunity cost of issuing these options equal to the amount the company would receive if it sold the same options to outside investors? No, it is not, since the options granted to employees are non...

The social or economic discount rate is the threshold rate used to calculate the net present value of an investment project, a program, or a regulatory intervention to see whether the proposed expenditures are economically worthwhile to undertake. The size of the economic rate of discount has...

This study estimates the size and value of unpaid family caretaking activities at a European level. While at a country level several studies are available, a comprehensive evaluation for Europe as a whole was missing so far, mainly due to data limitations. This paper fills this gap using a...

Patterns of informal care are documented throughout the day with Dutch time use diary data. The diary data enable us to identify a, so far overlooked, source of opportunity costs of informal care, i.e. the necessity to perform particular tasks of informal care at specific moments of the day....

There is no robust empirical support for the effect of financial incentives on the decision to work in self-employment rather than as a wage earner. In the literature, this is seen as a puzzle. We offer a focus on the opportunity cost, i.e. the wages given up as an employee. Information on...

We argue that economics - as the scientific method of analyzing trade-offs - can be helpful (and may even be indispensable) for assessing the trade-off between intergenerational and intragenerational justice. Economic analysis can delineate the opportunity set of politics with respect to the two...

Für Niedersachsen sind die erneuerbaren Energien zum nachhaltigen Innovations- und Beschäftigungsmotor geworden mit einem Gesamtbeschäftigungseffekt von 13.000 Stellen allein in 2002. Im Bundesgebiet sind inzwischen in diesem Sektor mehr als 130.000 Menschen beschäftigt. Die...

Erneuerbare Energien tragen wesentlich zum Klimaschutz, zur Schonung erschöpfbarer Ressourcen und zur Energieversorgungssicherheit bei. Ziel der Europäischen Union ist es, den Anteil erneuerbarer Energien bis 2020 auf mindestens 20 Prozent des Energieverbrauchs zu erhöhen. Deutschlands Anteil...