This economist's theories were revived in Production of Commodities by Means of Commodities by Piero Sraffa. This man invoked Say's Law in suggesting 
This economist's theories were revived in Production of Commodities by Means of Commodities by Piero Sraffa. This man invoked Say's Law in suggesting that a general glut was impossible. He published an essay stating that raising the tariff on grain imports would lead to decreased manufacturing profits and increased rent. He linked the price of commodities to the amount of time expended in their production in his labor theory of values. This man stated that working wages would remain near subsistence level, his Iron Law of Wages. For 10 points, name this author of Principles of Political Economy and Taxation who explained the theory of comparative advantage.
This economist's theories were revived in Production of Commodities by Means of Commodities by Piero Sraffa.
David Ricardo