Angus Maddison: The Data That Changed Everything
How One Economist Proved India's Economic Dominance
For decades, economic history was told from a European perspective. Then a British economist spent his career reconstructing GDP data spanning two thousand years. His findings proved what Indian texts claimed: for most of recorded history, India was the world's largest economy. This lesson explores Maddison's revolutionary work and its implications.
The Professor's Obsession

In a modest office at the University of Groningen in the Netherlands, Angus Maddison spent decades on what seemed like an impossible task: calculating the GDP of every major economy for the past two thousand years.
His colleagues thought he was chasing phantoms. How could anyone estimate economic output for civilizations that left incomplete records? How could you compare a Roman sesterce to a Han Chinese cash coin to an Indian karshapana?
Maddison's answer was methodical: use every available source, tax records, trade logs, population estimates, agricultural yields, technological capabilities, and apply consistent economic reasoning across civilizations. Where direct data was absent, use inference from related indicators.
The result, published across multiple OECD volumes, transformed our understanding of world economic history.
The Numbers That Shattered Assumptions
Maddison's most revolutionary finding concerned India and China. His data showed:
| Year | India (% of World GDP) | Western Europe (%) | United States (%) |
|---|---|---|---|
| 1 CE | 32.9% | 10.8% | - |
| 1000 CE | 28.9% | 8.7% | - |
| 1500 CE | 24.4% | 17.8% | - |
| 1700 CE | 24.4% | 21.9% | 0.1% |
| 1820 CE | 16.0% | 23.0% | 1.8% |
| 1870 CE | 12.2% | 33.0% | 8.9% |
| 1913 CE | 7.6% | 33.0% | 18.9% |
| 1950 CE | 4.2% | 26.2% | 27.3% |
Look at the trajectory. In 1 CE, India alone produced nearly a third of global economic output. This wasn't a brief spike, it persisted for seventeen centuries. As late as 1700, India still matched all of Western Europe combined.
Then came collapse. In just 250 years, from 1700 to 1950, India's share fell from 24.4% to 4.2%. A civilizational economy that had led the world for two millennia was reduced to a fraction of its historical share.