Factor price equalization is an

economic An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with the ...

theory, by

Paul A. Samuelson Paul Anthony Samuelson (May 15, 1915 – December 13, 2009) was an American economist who was the first American to win the Nobel Memorial Prize in Economic Sciences. When awarding the prize in 1970, the Swedish Royal Academies stated that he "h ...

(1948), which states that the prices of identical

factors of production In economics, factors of production, resources, or inputs are what is used in the production process to produce output—that is, goods and services. The utilized amounts of the various inputs determine the quantity of output according to the rel ...

, such as the wage rate or the rent of capital, will be equalized across countries as a result of international trade in commodities. The theorem assumes that there are two goods and two factors of production, for example capital and labour. Other key assumptions of the theorem are that each country faces the same commodity prices, because of free trade in commodities, uses the same technology for production, and produces both goods. Crucially these assumptions result in factor prices being equalized across countries without the need for factor mobility, such as migration of labor or capital flows. A simple summary of this theory is when the prices of the output goods are equalized between countries as they move to free trade, then the prices of the factors (capital and labor) will also be equalized between countries. Whichever factor receives the lowest price before two countries integrate economically and effectively become one market will therefore tend to become more expensive relative to other factors in the economy, while those with the highest price will tend to become cheaper. In a perfectly competitive market, the return to a factor of production depends upon the value of its marginal productivity. The marginal productivity of a factor, like labor, in turn depends upon the amount of labor being used as well as the amount of capital. As the amount of labor rises in an industry, labor's marginal productivity falls. As the amount of capital rises, labor's marginal productivity rises. Finally, the value of productivity depends upon the output price commanded by the good in the market. An often-cited example of factor price equalization is wages. When two countries enter a

free trade Free trade is a trade policy that does not restrict imports or exports. It can also be understood as the free market idea applied to international trade. In government, free trade is predominantly advocated by political parties that hold econ ...

agreement, wages for identical jobs in both countries tend to approach each other. The result was first proven mathematically as an outcome of the

Heckscher–Ohlin model The Heckscher–Ohlin model (, H–O model) is a general equilibrium mathematical model of international trade, developed by Eli Heckscher and Bertil Ohlin at the Stockholm School of Economics. It builds on David Ricardo's theory of comparative ad ...

assumptions. Simply stated the theorem says that when the prices of the output goods are equalized between countries as they move to free trade, then the prices of the input factors (capital and labor) will also be equalized between countries. This theory was independently discovered by

Abba Lerner Abraham "Abba" Ptachya Lerner (also Abba Psachia Lerner; 28 October 1903 – 27 October 1982) was a Russian-born American-British economist. Biography Born in Novoselytsia, Bessarabia, Russian Empire, Lerner grew up in a Jewish family, which ...

in 1933 but was published much later in 1952.

Abba P. Lerner Abraham "Abba" Ptachya Lerner (also Abba Psachia Lerner; 28 October 1903 – 27 October 1982) was a Russian-born American-British economist. Biography Born in Novoselytsia, Bessarabia, Russian Empire, Lerner grew up in a Jewish family, which e ...

(1952). "Factor Prices and International Trade", ''Economica''. The "Lerner Diagram" remains a key analytical tool in teaching international trade theory.

References

{{DEFAULTSORT:Factor Price Equalization Pricing International trade theory Economics theorems Factors of production

See also

References