Global impact assessment of unilateral climate policies is commonly based on multi-sector, multi-region computable general equilibrium (CGE) models that are calibrated to consistent accounts of production, consumption, and bilateral trade flows. However, global economic databases such as GTAP...

Die Klima-Konferenz in Bali ist zu Ende, der Weg zu einem neuen internationalen Klimaabkommen aber alles andere als klar. Doch schon heute steht fest: Die massive Absenkung der weltweiten Treibhausgasemissionen wird sich durch strikte Vorgaben allein wohl kaum erreichen lassen - dazu sind die...

Subglobal climate policies will be the norm for some years to come. However, several options exist for improving the efficiency of domestic emissions regulation. A prominent but contentious policy option for improving the external efficiency is the implementation of carbon tariffs on...

Allocation of emission allowances may affect firms' incentives to invest in clean technologies. In this paper we show that so-called output-based allocation tends to stimulate such investments as long as individual firms do not assume the regulator to tighten the allocation rule as a consequence...

We examine strategic incentives to subsidize green energy in a group of countries that operates an international carbon emissions trading scheme. In our model, green subsidies of either sign on top of emissions cap regulation reduce the welfare of the group of countries, but this may not hold...

This paper examines how enforcement affects the structure and performance of emissions trading programs with price controls under uncertainty about firms' abatement costs. The analysis highlights how an enforcement strategy can cause abatement-cost risk to be transmitted to enforcement costs via...