The Basics
- Simple definition: An increase in a country’s supply of one factor of production (like labor or capital) will increase output of the good using that factor intensively and decrease output of the other good.
- Core idea: Resource growth changes production patterns.
- Think of it as: If you get more of something, you make more of what uses it heavily, and less of everything else.
What It Actually Means
In a two-good, two-factor economy (like labor and capital), the Rybczynski theorem shows that increasing one factor – say, more workers – expands production of the labor-intensive good and contracts production of the capital-intensive good, assuming full employment and constant prices. This happens because the expanding sector draws resources from the other.
Example
If Pakistan’s labor force grows significantly, the theorem predicts textiles (labor-intensive) production will rise, while heavy machinery (capital-intensive) production might fall as capital shifts toward textiles.
Why It Matters
The theorem explains how immigration, population growth, or capital accumulation reshapes an economy’s production structure. It has implications for trade policy and development strategy.
See also
Heckscher-Ohlin Model • Factor Endowments • Terms of Trade • Stolper-Samuelson Theorem
Read more about this with MASEconomics:
The Rybczynski Theorem: Understanding Factor Growth and Trade Specialization