Uncertainty is critical to questions about climate change policy. Recently developed recursive integrated assessment models have become the primary tools for studying and quantifying the policy implications of uncertainty. We decompose the channels through which uncertainty affects policy and...

Greenhouse gas policies confront the trade-off between the costs of reducing emissions and the benefits of avoided climate change. The risk of uncertain and potentially irreversible catastrophes is an important issue related to the latter, and one that has not yet been well incorporated into...

Greenhouse gas policies confront the trade-off between the costs of reducing emissions and the benefits of avoided climate change. The risk of uncertain and potentially irreversible catastrophes is an important issue related to the latter, and one that has not yet been well incorporated into...

The option of adapting to climate change is becoming more important in climate change policy. Hence, responding to climate change now involves both mitigation to address the cause and adaptation as a response to already ongoing or expected changes. These changes are also of relevance for the...

There is widespread concern that climate policy is moving too slowly and that decarbonization of economic development is coming too late for effective climate protection. We analyze three different effects that emerge endogenously during decarbonization and amplify current policies: growing...

This paper uses a benchmark climate model with endogenous technical change to consider the effects of three extensions on optimal policy under a clean transition. First, the movement of workers between non-energy and energy sectors lowers the cost of abatement by more than an order of magnitude,...

We develop a resource extraction model that features imperfect substitution and endogenous market power. We analytically characterize the effect of anticipated future demand shocks on the resource extraction path and show that endogenous market power can dampen the adverse consequences of...

Auf nationaler und auf europäischer Ebene sind die zuvor bestehenden Klimaziele deutlich verschärft worden. Die neuen Vorgaben, mit denen in Deutschland 2045 und in der EU27 bis 2050 Treibhausgasneutralität erreicht werden soll, werden ebenso dargestellt wie die Instrumente, mit denen die...

Assessment of climate change policies requires aggregation of costs and benefits over time and across generations, a process ordinarily done through discounting. Choosing the correct discount rate has proved controversial and highly consequential. To clarify past analysis and guide future work,...

Policies aimed at reducing emissions from fossil fuels may increase climate damages. This 'Green Paradox' emerges if resource owners increase near-term extraction in fear of stricter future policy measures. Hans-Werner Sinn (2008) showed that the paradox occurs when increasing resource taxes are...