This paper argues that, in situations where choices are made between mutually exclusive investment projects and where there are economic rents, free allocation of tradable emission permits in emissions trading systems can weaken incentives for firms to invest in less carbon-intensive...

Energy affordability can be defined as a household’s ability to pay for necessary levels of energy use within normal spending patterns. This paper uses three indicators to measure energy affordability risk in 20 OECD countries. Energy affordability risk differs widely between countries. The...

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...