We derive the optimal contributions to global climate policy when countries differ with respect to income level and pollution intensity. Countries' growth rates are determined endogenously, and abatement efficiency is improved by technical progress. We show that country heterogeneity has a...

Optimal climate policy is studied in a Ramsey growth model. A developing economy weighs global warming less, hence is more likely to exhaust fossil fuel and exacerbate global warming. The optimal carbon tax is higher for a developed economy. We analyze the optimal time of transition from fossil...

The purpose of this article is twofold: First to discuss three misconceptions in the debate on climate policies: i) that de-growth is necessary, ii) that the market economy is part of the problem rather than part of the solution to climate change, and iii) that the only policy tool needed is to...

Mit einer Brutalität ohnegleichen hat sich der Mensch die Natur untertan gemacht. Die Folgen bekommen wir gerade heftig zu spüren. Vieles steht auf dem Spiel. Manche sagen, es gehe um alles. Die Erkenntnisse der Wissenschaft sind klar und nicht zu widerlegen: Auf einem Planeten mit begrenzten...