"This work is a product of the staff of The World Bank with external contributions"--T.p. verso.

The purpose of the United Nations International Comparison Project (ICP) is to compare the purchasing power of currencies and the real gross domestic product (GDP) per capita of different countries. It is well known that the usual method of converting the GDPs of different countries to a common currency, usually U.S. dollars, at existing exchange rates is misleading because exchange rates do not necessarily reflect the purchasing power of currencies. The ICP has found that the purchasing power of a country's currency over GDP can be as much as three times its dollar exchange rate, and thus the real GDP per capita is three times the value shown in an exchange-rate conversion. The unsatisfactory nature of exchange-rate conversions has become even clearer in the past few years under the new regime of managed floating rates. Changes in exchange rates of as much as 20 percent within the space of a year have not been unusual even among major currencies.

The 2011 International Comparison Programme (ICP) is a worldwide statistical initiative that aims to estimate Purchasing Power Parities (PPPs) to be used as currency converters to compare the size and price levels of economies around the world -- crucial information for research in comparative analysis and policy making.

This manual gives a complete, detailed and up-to-date description of the Eurostat-OECD PPP Programme, including its organisation, the various surveys carried out by participating countries and the ways PPPs are calculated and disseminated. It also provides guidance on the use of PPPs.

The world economy is experiencing a very strong but uneven recovery, with many emerging market and developing economies facing obstacles to vaccination. The global outlook remains uncertain, with major risks around the path of the pandemic and the possibility of financial stress amid large debt loads. Policy makers face a difficult balancing act as they seek to nurture the recovery while safeguarding price stability and fiscal sustainability. A comprehensive set of policies will be required to promote a strong recovery that mitigates inequality and enhances environmental sustainability, ultimately putting economies on a path of green, resilient, and inclusive development. Prominent among the necessary policies are efforts to lower trade costs so that trade can once again become a robust engine of growth. This year marks the 30th anniversary of the Global Economic Prospects. The Global Economic Prospects is a World Bank Group Flagship Report that examines global economic developments and prospects, with a special focus on emerging market and developing economies, on a semiannual basis (in January and June). Each edition includes analytical pieces on topical policy challenges faced by these economies.

The term Purchasing Power Parity may date from the early twentieth century, when it was coined by the Swedish economist Gustav Cassel, but the underlying concept had been enjoying varying degrees of success since its development in sixteenth century Spain. Even towards the end of the twentieth century, and especially since the breakdown of the Bretton Woods system of fixed exchange rates, PPP and the stability of real exchange rates continued to be the subject of academic debate. This volume brings together essays covering aspects of current thinking on Purchasing Power Parity, from the various ways in which to test for its existence, to its appearance in different economies around the world, to examinations of the explanations given when PPP does not appear to hold This book was published as a special issue of Applied Financial Economics. The academic editor of this journal is Mark P. Taylor.

Labor productivity growth in the United States and other advanced countries has slowed dramatically since the mid-2000s, a major factor in their economic stagnation and political turmoil. Economists have been debating the causes of the slowdown and possible remedies for some years. Unaddressed in this discussion is what happens if the slowdown is not reversed. In this volume, a dozen renowned scholars analyze the impact of sustained lower productivity growth on public finances, social protection, trade, capital flows, wages, inequality, and, ultimately, politics in the advanced industrial world. They conclude that slow productivity growth could lead to unpredictable and possibly dangerous new problems, aggravating inequality and increasing concentration of market power. Facing Up to Low Productivity Growth also proposes ways that countries can cope with these consequences.