A carbon tax is an efficient economic instrument to reduce emissions of carbon dioxide released from fossil fuel burning. If designed properly, it could also help significantly to promote renewable energy. Using a multi-sector, multi-country computable general equilibrium model this study...

Environmental policy often has to be devised under informational constraints, like uncertainty and asymmetric information. We consider an environmental policy that aims at reducing the welfare losses caused by asymmetric information while being sufficiently simple for implementation. In this...

We study adaptation to climate change in a federalist setting. To protect themselves against an increase in flood risk, regional governments choose among adaptation measures that vary with respect to their costs, the level of protection they offer, and the presence and nature of spillovers to...

We study the optimal adaptation to extreme climate events by the central government in a setup where events are dynamically uncertain and the government does not know the true probabilities of events. We analyze different policy decision rules minimizing expected welfare losses for sites with...

We consider a setting where strategic behavior of r&d firms can lead to different types of a technology lock-in, permanent or temporary, in an eventually inferior technology. The simple setting with one incumbent and one potential entrant may lead to a wide variety of possible strategic regimes....

In many countries, inducing large-scale technological changes has become an important policy objective, as in the context of climate policy or energy transitions. Such large-scale changes require the development of strongly interlinked technologies. But current economic models have little...

We consider an abstract setting of the differential r&d game, where participating firms are allowed for strategic behavior. We assume the information asymmetry across those firms and the government, which seeks to support newer technologies in a socially optimal manner. We develop a general...

Mit 01. Januar 2008 wurde in der Schweiz ein System zum Handel von Emissionsrechten gestartet. Neben der CO2-Abgabe und dem Klimarappen auf Treibstoffe soll diese klimapolitische Massnahme wesentlich zur Erfüllung der Kyoto-Zielreduktion beitragen. Die Schweiz verfolgt zur Senkung der...

Ziel dieses Projekts ist die Analyse eines möglichen Zusammenhangs des jüngsten Ölpreisanstiegs mit dem Peak-Oil Effekt, welcher sich über die Verknappung des Erdölangebots realisieren würde. Ein direkter Test einer solchen Interrelation ist jedoch erst ex-post möglich. Dieses Paper...