We analyze distinctive investment scenarios for the integration of fluctuating renewables in the German power system. Using a combined model for dispatch, transmission, and investment, three different investment options are considered, including gas-fired power plants, pumped hydro storage, and...

The life-cycle hypothesis implies that consumption would not decline at retirement. However, several studies found relevant declines in food consumption after retirement for the United States. Others concluded that this contradiction of the life-cycle hypothesis is solved by allowing for broader...

Mit der Begründung drohender Altersarmut wird seit einiger Zeit bereits die Eingliederung der bislang nicht gesetzlich versicherten Selbstständigen in die Gesetzliche Rentenversicherung diskutiert. Allerdings ist empirisch sehr wenig über die Altersvorsorge und die Vermögenssituation der...