Abstract
Most textbooks have shown mutual gains from trade without explaining the source of the gains. Formally deriving the combined PPF from two individual PPFs, this paper demonstrates that the economy of two producers reaches their combined PPF if and only if at least one of them fully specializes according to her comparative advantage. Such specialization causes the total production to rise, as it is maximized on the combined PPF. It also shows how such specialization is endogenously determined under the perfect competition. It also explains who (and how to) benefit more from specialization in international trade and in labor market.
Recommended Citation
(2026)
"Gains from Specialization and Trade Revisited: “How” is Done and “Why” Must be Explained,"
Journal of Economics and Finance Education: Vol. 14:
Iss.
1, Article 9.
Available at:
https://scholarship.rollins.edu/jefe/vol14/iss1/9
