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MENTAL MODEL · M4212

Stolper-Samuelson Theorem

Stolper-Samuelson Theorem
BusinessHigh supportPolitical Economy
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

In free trade, owners of a country's relatively abundant factors (such as capital in developed countries, labor in developing countries) gain, while owners of relatively scarce factors lose.

SCAFFOLDING EFFECT

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It explains the distributional conflicts behind globalization. It is a powerful model showing why trade, which is beneficial overall (enlarging the pie), inevitably leads to domestic political polarization and resistance from specific groups (unequal distribution of the pie).

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In international trade, the real returns to a country's abundant factors (e.g., labor) rise with openness, while returns to scarce factors fall. It reveals the domestic distributional consequences of trade.

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Stolper%E2%80%93Samuelson_theoremZH · Explicit
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