Methane abatement and geoengineering have a short-lived effect on temperature compared with carbon abatement. Different optimal tax paths for these actions arise in a cost-benefit framework with an unknown temperature threshold where severe and irreversible climate impacts, called a tipping...

Using data for the 2005-2017 period, we consider the effects of resource rents on the sub-components of Freedom House's measures of Political Rights and Civil Liberties. Higher resource rents lead to a deterioration in Political Pluralism and Participation, but do not affect other...