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...

This paper presents an overview of recent U.S. fiscal developments and discusses possible implications of the sharp turn around in the government’s fiscal position. Against this back ground, it also reviews key policy challenges that will need to be addressed to cope with the mounting...

A model for world crude oil and natural gas markets is estimated. It confirms low price and high income elasticities of demand for both crude oil and natural gas, which explains the market power of oil producers and price volatility following shocks. The paper establishes a relationship between...

This paper examines the relationship between monetary policy and oil prices within a world oil demand and supply model. Low price and high income elasticities of demand and rigid supply explain high price volatilities and producers' market power. Exchange and interest rates do influence oil...

Fiscal instruments are potentially among the most effective, and cost-effective, options for addressing externalities related to poor air quality, urban road congestion, and greenhouse gases. This paper takes a case study, focused on Mauritius (a pioneer in the use of green taxes) to illustrate...

This Selected Issues paper discusses the economics of energy price reform in the Islamic Republic of Iran. Economic policies in Iran have traditionally relied on the abundant availability of energy at a low price to finance the country’s economic development. Low domestic energy prices...

This Selected Issues paper discusses the policy response by a sample of central banks to the ongoing oil and food price shocks in South Africa, drawing some lessons, which can help put in context developments in the country. The paper discusses first- and second-round effects of “supply...