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David Ricardo

Original nameDavid Ricardo

Classical economist, author of the theory of comparative advantage

The First to Read "Where Wealth Comes From" · The Birth of Economics
Classical EconomicsComparative AdvantageFree TradeRent

Who they are

An English economist, one of the great synthesizers of classical economics, and himself a hugely successful stockbroker and wealthy man. His most far-reaching contribution is the theory of "comparative advantage": even if one country produces everything more efficiently than another, both can still gain if each concentrates on what it is relatively best at and then trades. This slightly counterintuitive insight gave free trade its most powerful theoretical foundation, and has been the bedrock of international trade for two centuries. He and Malthus were a famous pair of friendly adversaries — close in private, yet clashing sharply over nearly every great question in economics.

Primary sourcesRicardo, On the Principles of Political Economy and Taxation (1817)

Key stories

Why Both Countries Should Trade

Ricardo’s "comparative advantage" answered a basic question: if one country is better at everything than another, does it still need to trade with it? His answer was yes. Because the energy of a person (or a country) is limited, the most profitable course is to focus on the one thing you are relatively best at and obtain the rest through exchange. Even if you are better than the other at everything, concentrating on your greatest advantage and then trading makes the total output of both higher. This counterintuitive truth became the theoretical bedrock of every argument for free trade thereafter.

Relationships

Mentor
✋Adam Smith
Nemesis
📉Thomas Malthus　friendly adversaries, long debating rent, population, and more

Echoes today

Below are how modern works borrow or reinterpret this name or story — not the original material. The two differ, so keep them apart.

"Comparative advantage" still the bedrock of trade theoryRicardo’s "comparative advantage" has been the bedrock of international trade theory for two centuries, and remains the core concept impossible to bypass when discussing globalization, tariffs, and the division of industrial labor.

Appears in

The Birth of EconomicsRicardo’s Comparative Advantage and Malthus’s Gloom
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