These will be the 21 most powerful economies in 2030

A woman uses her mobile phone before a share prices board in Tokyo on May 7, 2014.

(YOSHIKAZU TSUNO/AFP/Getty Images)

Emerging markets will start to dominate rankings of the world's top economies by 2030, according to a report published earlier this year.

The report, published by PricewaterhouseCoopers, finds that emerging markets such as India and Brazil will increasingly challenge the economic dominance of the USA and China, while others slip behind.

The report ranks countries by their projected global gross domestic product by purchasing power parity (PPP). PPP is a model which describes the purchasing power, and therefore value, of a given currency.

See which countries made the list:

All numbers cited in the slides are in US dollars and at constant values (for reference, the US's current PPP is $18.569 trillion)

21. Nigeria — $1.794 trillion

Nobel laureate Malala Yousafzai seen in a group discussion with some of the student of Yerwa Girls school in Maiduguri, Nigeria

(Reuters/Afolabi Sotunde)

20. Pakistan — $1.868 trillion

(AFP/Getty Images

(AFP/Getty Images)

19. Egypt — $2.049 trillion

One historian believes King Solomon's wealth may in fact be in the Egyptian Museum in Cairo

(Reuters)

18. Canada — $2.141 trillion

Toronto, Canada.

(Shutterstock)

17. Spain — $2.159 trillion

(iStock)

16. Iran — $2.354 trillion

An woman checks her mobile phone as she walks past graffiti of a tree in central Tehran in this file photo from 31 December 2014

(Getty)

15. Italy — $2.541 trillion

The city centre of Florence is a UNESCO protected site

(Getty Images/iStockphoto)

14. South Korea — $2.651 trillion

South Korea's president-elect Moon Jae-in speaks to supporters at Gwanghwamun Square in Seoul, South Korea

(Reuters)

13. Saudi Arabia — $2.755 trillion

Saudi man and a child read a copy of the Koran, Islam's holy book, inside a mosque on the first day of the holy fasting month of Ramadan in the coastal town of Qatif (HUSSAIN RADWAN/AFP/Getty )

(HUSSAIN RADWAN/AFP/Getty)

12. Turkey — $2.996 trillion

(Getty Images

(Getty Images)

11. France — $3.377 trillion

The Sacre Coeur

(David Ramos/Getty Images)

10. United Kingdom — $3.638 trillion

The Palace of Westminster - where Britain's laws are forged

(Getty)

9. Mexico — $3.661 trillion

(Getty Images/iStockphoto)

(Getty/iStock)

8. Brazil — $4.439 trillion

Far-off destinations like Rio are easier to fly to and get around with the websites below

(Getty)

7. Germany — $4.707 trillion

People attend the Year's Eve party by the Brandenburg Gate in Berlin, Germany, 31 December 2016.

(EPA)

6. Russia — $4.736 trillion

St Basil's Cathedral seen through a gate in Red Square in central Moscow

(Reuters)

5. Indonesia — $5.424 trillion

Old Jakarta was a hub of Dutch colonialism

(Getty Images/iStockphoto)

4. Japan — $5.606 trillion

(AFP

(AFP)

3. India — $19.511 trillion

Bouncer Tarannum (L) a shares a moment with her friend during Eid al-Fitr celebrations at her house in New Delhi, India, June 26, 2017. REUTERS/Adnan Abidi

(Reuters)

2. United States — $23.475 trillion

(Reuters

(Reuters)

1. China — $38.008 trillion

Some cruise passengers have been given incorrect information about visa requirements

(Simon Calder)

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