In response to the potential threat of global warming many countries are considering cost effective policies to reduce greenhouse gas emissions. In this context much attention has been paid to taxes levied on the carbon content of fuels (carbon taxes), since they are a potentially efficient...

This paper summarises and analyses results of the OECD's Model Comparisons Project. The aim of the project is to better understand differences across six global models in the cost of reducing carbon dioxide emissions. In order to facilitate comparisons, key assumptions and reduction targets have...