Original sentence: The Subsistence Theory of Wages, also known as the Iron Law of Wages,  was a law of economics that asserted that real wages in the long run would trend toward the value needed to keep the workers' population constant
Edited sentence: The Subsistence Theory of Wages, also known as the Iron Law of Wages, was a law of economics that asserted that real wages in the long run would trend toward the value needed to keep the workers' population constant