Key Details
The EAC-PM working paper analyses three decades of structural change in the global economy using Purchasing Power Parity (PPP), showing that economic influence increasingly reflects productive capacity, domestic capital formation and long-term investment rather than nominal exchange rates.
Theme | Key Development |
|---|---|
Global economic shift | Asia has become the principal driver of global output, with China overtaking the United States and India becoming the world's third-largest economy in PPP terms. |
India's economic rise | India's share of global GDP (PPP) increased from 3.2% in 1992 to 8.2% in 2025 and is projected to reach 9.7% by 2030. |
Capital formation | India now accounts for 10.3% of global savings and 10.8% of global investment, ranking second and third globally respectively. |
Structural financing | Investment continues to exceed savings, indicating an investment-led growth model supported by external capital inflows. |
Long-term outlook | China and India together are projected to account for 30.1% of global GDP (PPP) by 2030, reinforcing Asia's growing influence in the global economy. |
PPP Reveals More Than GDP Rankings
The working paper uses Purchasing Power Parity (PPP) to examine how the global economy has evolved between 1992 and 2025. Unlike market exchange rates, PPP measures the real size of economies after adjusting for differences in domestic prices, making it a more useful indicator of long-term productive capacity.
The analysis points to a structural redistribution of economic power towards Asia. China has become the world's largest economy in PPP terms, while India has risen from the ninth-largest economy in 1992 to the third-largest in 2025. At the same time, the relative economic weight of the United States, Japan and several major European economies has steadily declined.
India's Rise Reflects Growing Economic Capacity
India's economic transformation extends beyond higher GDP rankings. The report shows simultaneous improvements across production, savings, investment and living standards, indicating that the country's economic expansion is being supported by broader structural changes.
India's changing global position
8.2% of global GDP (PPP)
10.3% of global savings
10.8% of global investment
45% of world average per-capita income, up from 18% in 1992
Taken together, these indicators suggest that India is strengthening both its productive capacity and its ability to finance long-term economic growth.
Savings and Investment Explain the Next Phase of Growth
The report argues that capital formation is becoming as important as GDP in understanding economic power. While both China and India have expanded rapidly, they exhibit different financing models.
India | China |
|---|---|
Investment exceeds savings | Savings exceed investment |
Persistent current account deficit | Persistent current account surplus |
Relies on external capital to finance growth | Generates surplus capital for overseas investment |
India's investment-led model has supported rapid infrastructure expansion and economic growth, but it also highlights the importance of mobilising greater domestic savings to reduce long-term dependence on external financing.
What is Purchasing Power Parity (PPP)?
Purchasing Power Parity (PPP) compares the size of economies after adjusting for differences in domestic prices rather than using market exchange rates. By measuring how much goods and services can actually be purchased within each country, PPP provides a better estimate of real economic output, productive capacity and living standards.
Policy Relevance
Shows that Purchasing Power Parity provides a more meaningful measure of long-term productive capacity than market exchange rates when assessing structural shifts in the global economy.
Highlights domestic savings and investment as strategic drivers of economic resilience, demonstrating that capital formation increasingly shapes global economic influence alongside GDP.
Explains why expanding domestic financial savings will be critical for sustaining India's investment-led growth while reducing long-term dependence on external capital.
Suggests that future global economic governance and investment flows will increasingly reflect the growing economic weight of Asian economies, particularly China and India.
Demonstrates that sustaining economic scale will require balancing growth with macroeconomic stability, especially through stronger domestic resource mobilisation and efficient capital allocation.
Follow the Full Working Paper Here: The World in Purchasing Power Parity Trends since 1992