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purchasing power parity

More than money: Counting poverty in multiple forms

Dhiraj Sharma's picture

Consider two households that have the same level of consumption (or income) per person but they differ in the following ways. All the children in the first household go to school, while the children in the second household work to support the family. The first household obtains drinking water from a tap connected to the public distribution network, whereas the second household fetches water from a nearby stream. At night, the first home is illuminated with electricity, whereas the second home is dark. A lay person would easily recognize which of these two families is better off. Yet, traditional measures of household well-being would put the two households on par because conventionally, household well-being has been measured using consumption (or income).

Nearly 1 in 2 in the world lives under $5.50 a day

Dean Mitchell Jolliffe's picture

Today, less than 10 percent of the world population lives in extreme poverty. Based on information about basic needs collected from 15 low-income countries, the World Bank defines the extreme poor as those living on less than $1.90 a day. However, because more people in poverty live in middle-income, rather than low-income, countries today, higher poverty lines have been introduced. These lines are $3.20 and $5.50 a day, which are more typical of poverty thresholds for middle-income countries.

Global poverty in 2015: PovcalNet’s new estimates and improved documentation

Christoph Lakner's picture

PovcalNet released new poverty estimates last week, indicating that in 2015, 10 percent of the global population were living on less than the international poverty line (IPL), currently set at US$1.90 per person per day in 2011 purchasing power parity (PPP). This estimate is based on a series of new data and revisions, including more than 1,600 household surveys from 164 countries, national accounts, population estimates, inflation data, and purchasing power parity data. The new poverty numbers were released on September 19 and will be part of “Poverty and Shared Prosperity 2018: Piecing Together the Poverty Puzzle,” a report to be published on October 17, End Poverty Day.

We’re also launching a Global Poverty Monitoring Technical Note Series which describes the data, methods and assumptions underpinning the World Bank’s global poverty estimates published in PovcalNet. With this update, we’re releasing four new notes in this series, including the “What’s New” note that will accompany each of the semi-annual updates to PovcalNet. The other notes cover different aspects of the price adjustments embedded in the global poverty estimates, such as adjustments for inflation and price differences across countries

Begun as a research project by Martin Ravallion, Shaohua Chen and others, PovcalNet has become the official source for monitoring the World Bank’s Twin Goals, the Millennium Development Goals (MDG), and now Sustainable Development Goal 1.1. PovcalNet is managed jointly by the Data and Research Groups within the World Bank’s Development Economics Division. It draws heavily upon a strong collaboration with the Poverty and Equity Global Practice, which is responsible for gathering and harmonizing the underlying survey data.

PovcalNet does much more than simply providing the most recent global poverty estimates. It’s a computational tool that allows users to estimate poverty rates for regions, sets of countries or individual countries, over time and at any poverty line. It also provides several distributional measures, such as the Gini index and income shares for the various decile groups.

The most recent PovcalNet data show us that over the last few decades, remarkable progress has been made in reducing extreme poverty. The world attained the first MDG target—cutting the 1990 poverty rate in half by 2015—six years ahead of schedule. With continued reductions, the global poverty rate, defined as the share of world’s population living below the IPL, has dropped from 35.9 percent in 1990 to 10 percent in 2015 – more than a 70 percent reduction.

In the last quarter century, global poverty dropped by more than 70 percent

 

Measuring India’s economy using PPPs shows it surpassed France 25 years ago

Edie Purdie's picture

The ICP blog series explores ideas and issues under the International Comparison Program umbrella – including innovations in price and data collection, discussions on purpose and methodology, as well the use of purchasing power parities in the growing world of development data. Authors from across the globe, whether ICP practitioners or researchers making use of ICP data, are encouraged to submit relevant blogs for consideration to [email protected].

Earlier this summer, new data published by the World Bank showed that the Gross Domestic Product (GDP) of India had recently surpassed that of France, and that it was on track to overtake the UK economy too. Many news outlets jumped upon this new ranking of India’s economy, now sixth from top. But most media articles did not mention that the World Bank’s other measure, which compares GDP across countries using purchasing power parities (PPPs), has placed India ahead of both France and the UK for the last 25 years.

The number of extremely poor people continues to rise in Sub-Saharan Africa

Divyanshi Wadhwa's picture

Globally, extreme poverty has rapidly declined. New poverty estimates by the World Bank suggest that the number of extremely poor people—those who live on $1.90 a day or less—has fallen from 1.9 billion in 1990 to about 736 million in 2015.

However, the number of people living in extreme poverty is on the rise in Sub-Saharan Africa, comprising more than half of the extreme poor in 2015. Forecasts also indicate that by 2030, nearly 9 in 10 extremely poor people will live in Sub-Saharan Africa. Find more information and the latest poverty estimates at World Bank PovcalNet and Poverty & Equity Data portal.

 

Celebrating 50 years of measuring world economies

Edie Purdie's picture

The ICP blog series explores ideas and issues under the International Comparison Program umbrella – including innovations in price and data collection, discussions on purpose and methodology, as well the use of purchasing power parities in the growing world of development data. Authors from across the globe, whether ICP practitioners or researchers making use of ICP data, are encouraged to submit relevant blogs for consideration to [email protected].

A visitor to the World Bank’s atrium on May 23, 2018 would have seen a who’s who of eminent economists and statisticians congregating to celebrate the 50th anniversary of the International Comparison Program. Organized by the Global ICP Unit based in the World Bank in Washington, D.C, a large local, and virtual, audience gathered to hear the thoughts and reflections of major ICP players at the “50 Years of Measuring World Economies” event.

Event: 50 Years of Measuring World Economies – Wednesday May 23, 2018 at 4pm EST

Nada Hamadeh's picture
Join us live online or in-person on Wednesday at 4pm for "50 Years of Measuring World Economies" event held at the World Bank James D. Wolfensohn Atrium in Washington, DC.
 
The International Comparison Program (ICP) – the world’s largest global data initiative led by the World Bank under the auspices of the United Nations Statistical Commission – is celebrating its 50th anniversary this year. Since the initiation of the ICP as a modest research project at the University of Pennsylvania by Irving Kravis, Alan Heston and Robert Summers in 1968, the Program has grown to cover about 200 countries and 20 global, regional and sub-regional agencies.
 

To commemorate this milestone, World Bank Group Chief Executive Officer Kristalina Georgieva, 2015 Nobel Laureate in economics Sir Angus Deaton, and Georgetown University Provost Robert M. Groves will come together at an event to discuss the challenges and opportunities for investing in evidence for sustainable development. In addition, Lawrence H. Summers, the 71st Secretary of the US Treasury and son of ICP co-founder Robert Summers, will share a recorded tribute. A video produced by the World Bank for the occasion will showcase the history and impact of the ICP.

Interested in using purchasing power parity data? The International Comparison Program’s new site has you covered

Nada Hamadeh's picture

The International Comparison Program (ICP) is pleased to announce its new website.

The ICP estimates purchasing power parities, or PPPs, for use as currency converters to compare the size and price levels of economies around the world.  The new website is a rich repository of over 1,100 files and includes: an overview of the program and its history, governance structure, results and their uses, methodology and research agenda. The site also includes ICP reports, guides, videos, newsletters, and links to news articles, blogs and academic and research papers using ICP data and results.


The world is about as poor as we thought, and the fight to end poverty remains ambitious

Espen Beer Prydz's picture
World Bank estimates of global extreme poverty rely on many different data sources – among these are the price data that measure differences in the cost of purchasing a bundle of goods across countries. This measure of purchasing power parity (PPP) is used to ensure that the international poverty line reflects the same real standard of living across countries. Last year, the International Comparison Program (ICP) released PPP data from 2011, the first global update since the 2005 round.

PPPs and Global Poverty: July 9 Seminar at 12:30 PM, Join Online!

LTD Editors's picture

The Purchasing Power Parity (PPP) rates released in April 2014, based on the 2011 round of the International Comparison Program (ICP), entail some seemingly dramatic revisions to price levels and real incomes across the world. Looking back over the last three ICP rounds, back to 1993, it feels like we have been on an “ICP roller coaster” with falls in the estimated real incomes of many developing countries up to 2005 and then rises in 2011. The 2011 revisions have been taken to suggest substantially less poverty and inequality in the world than the 2005 round had implied. If we believe these new PPPs then the economic map of the world is quite different to what we thought. But can they be believed? A public debate has been generated by the new PPPs.

On July 9, 2014 Martin Ravallion (Department of Economics, Georgetown University) will shed more light on this ongoing debate at the Poverty and Applied Macro seminar hosted by the World Bank's research department.


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