This Staff Discussion Note looks at the stark fiscal challenges posed by the decline and aging of populations between now and 2100. It finds that without reforms, pensions and health spending would rise to 25 percent of GDP by end-century in more developed countries (and 16 percent of GDP in...

Energy subsidies are pervasive. Pretax subsidies, which arise when energy consumers pay less than the supply cost of energy, are high in many developing and emerging economies. Although pretax subsidies are not prevalent in advanced economies, they have large tax subsidies. These arise when...

This article finds that education and health spending has risen during International Monetary Fund (IMF)-supported programmes at a faster pace than in developing countries as a whole. The analysis is based on the most comprehensive dataset assembled thus far for this purpose, with data covering...

This paper fills a gap in the macroeconomic literature on renewable sources of energy. It offers a definition of green investment and analyzes the trends and determinants of this investment over the last decade for 35 advanced and emerging countries. We use a new multi-country historical dataset...