The report includes: Discussion of the scope of energy subsidies; Estimates of energy subsidies, and identification of the gaps in the existing data and issues around the measurement of energy subsidies; Modelling-based analysis of the implications of phasing-out energy subsidies on the economy, including socio-economic and trade impacts, the environment, and the energy sector; and Suggestions for the implementation of phase-out of inefficient subsidies leading to wasteful consumption, drawing on country case studies, including discussion of how to address social impacts.