We study the effect of leadership in an experimental threshold public "bad" game, where we manipulate both the relative returns of two investments (the more productive of which causes a negative externality) and the extent to which the gains from leadership diffuse to the group. The game...

Achieving the Paris Agreement long-term temperature goal requires closing the ambition and action gap. G20 countries have a crucial role to play in realising increased climate policy ambition. Synthetic electro fuels (e-fuels) were identified as one of the key policy areas and promising options...

Multilateral cooperation initiatives (or “climate clubs”) can generate some of the additional action that is needed to achieve the goals agreed in the Paris Agreement. An analysis of the state of collaboration in the four policy areas energy transition, synthetic fuels, food systems and...

This Working Paper provides a concrete illustration of how the existing international financial architecture could be activated more fully to mobilize the large sums required to respond decisively to the “great divergence” in COVID-19 crisis recovery between advanced and developing countries...

The implementation of activities aimed to mitigate global greenhouse gas emissions is more cost-efficient in developing countries than in most of the industrialized world. Thus it has been a major, but contentious topic in the climate negotiations to allow crediting of emissions reduction in...