A cap on global warming implies a tighter carbon budget which can be enforced with a credible second-best renewable energy subsidy designed to lock up fossil fuel and curb cumulative emissions. Such a subsidy brings forward the end of the fossil fuel era, but accelerates fossil fuel extraction...

Carbon pricing helps countries steer their economies towards and along a carbon-neutral growth path. This paper considers how the design of carbon pricing instruments affects their effectiveness, efficiency and feasibility. Design choices matter both for taxes and Emissions Trading Systems...

We study optimal climate policy in a global economy where regions differ in wealth and climate vulnerability. Carbon emissions from production lead to output losses, and there is a technology for emissions absorption. We provide an aggregation result: the model with heterogeneity can be cast...

Energy system and power market models refrain from distinguishing between private and social discount rates. We devise a strategy to account for diverging private and social discount rates in intertemporal optimization frameworks, resulting in an optimal carbon tax above the marginal damage when...

Geoeconomic concepts are gaining importance in EU trade policy. In this context new trade policy instruments are designed to protect the internal market against unfair trade practices, coercive actions as well as to ensure sustainable supply chains and the protection of human rights. The study...

In a model inspired by the EU Emissions Trading Scheme, non-cooperative countries allocate their emissions to internationally trading and non-trading sectors. Each country is better off with trading than without, and aggregate welfare is maximized with all sectors in the trading scheme. We...

Elf Euroländer haben beschlossen, auf Basis eines EU-Richtlinienentwurfs eine Finanztransaktionssteuer einzuführen. Der Autor untersucht hier das zugrunde liegende Konzept und die Gestaltungsparameter. Die verzerrende Wirkung dieser Steuer hält er für gering, das Aufkommen wird wohl nicht...

The study aims to assess the distributional effects of taxing financial transactions including a focus on gender. It specifically investigates the impact of the low interest rate environment on tax revenues and distribution. The first part of the study is explorative, aiming to develop a concept...