The United States remains the world's largest economy, accounting for over $31.8 trillion in GDP.
The richest country by GDP (PPP) per capita is often cited as Singapore, followed closely by Luxembourg, depending on the specific report and year, with Singapore leading in 2025 estimates with around $156,000-$157,000 per person, while Luxembourg is a strong contender just below that, highlighting small, finance-heavy economies as wealthiest per person.
United States. The United States' GDP is the world's largest, being worth over a quarter of global output in nominal GDP terms. Moreover, it has among the world's highest GDP per capita. The economy's structure is highly diversified.
China, India, and the United States will emerge as the world's three largest economies in 2050, with a total real U.S. dollar GDP of 70 percent more than the GDP of all the other G20 countries combined. In China and India alone, GDP is predicted to increase by nearly $60 trillion, the current size of the world economy.
No, the U.S. is richer than China overall by most measures like nominal GDP and wealth per person, but China's economy is larger when adjusted for Purchasing Power Parity (PPP) and it leads in some areas like manufacturing output, though average living standards remain lower in China. The U.S. has the world's largest economy by nominal GDP, but China's economy, when considering what money can buy domestically (PPP), is larger, although per capita figures show the U.S. is much wealthier per person.
By 2050, China is projected to be the world's richest country by total GDP, leading a significant shift where emerging economies like India, Indonesia, Brazil, and Russia rise to challenge traditional giants, with the U.S. potentially falling to third, while Singapore might become the richest per capita (PPP), though these predictions depend heavily on technological progress, political stability, and growth rates.
An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with the production, use, and management of resources.
The UAE ranks 1st globally in the Economic Stability Index for 2024 above advanced economies like Switzerland and Germany.
Australia currently stands as the second-wealthiest country in the world, with a median wealth per adult of US$268,000 (AU$413,000). In other words, half the population has more than this amount and half has less.
1. Guyana: 22.4% Guyana's GDP growth will be the fastest in the world in 2026 according to our Consensus Forecast, as has been the case in recent years.
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The smallest economy in the world measured in the IMF rankings is Tuvalu at $66 million. Most of the bottom 50 are considered low- to middle-income and emerging/developing countries.
Australia boasts a prosperous, Western-style capitalist economy, with a per capita GDP among the highest in the world. The services sector accounts for the largest share of GDP, although agriculture and mining significantly contribute to exports.
Real GDP growth averaged a robust 3.4% during the first three years of the Biden presidency. The labor market was strong in 2023. The unemployment rate averaged a very low 3.6% in 2023, as it had in 2022; the last year with an average 3.5% unemployment rate was 1969.
China has received significant coverage as either a potential or established superpower. The European Union, Russia and India have also been discussed as potential superpowers of the 21st century; Japan was a former candidate in the 1980s.
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By 2024, however, China's $18tn economy had fallen back to just over 62% of the almost $30tn of the US. In GDP per head terms, China is still no more than 20% of the US. A rising China uniquely lifted its share of global GDP between 2000 and 2021 from 3.5% to 18.5%, but since then it has slipped back to about 16.5%.