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...

We revisit optimal investment in energy-efficiency, presenting a decision framework built around the agent's wealth and wealth dynamic. An investment rule in the form of a trigger is derived such that the agent invests the first time the energy-carrier price crosses this threshold from below....

The ecological literature suggests that biodiversity reduces the variance of ecosystem services. Thus, conservative biodiversity management has an insurance value to risk-averse users of ecosystem services. We analyze a conceptual ecological-economic model in which such management measures...