: Ricardo's most famous contribution. It argues that international trade is mutually beneficial if countries specialize in goods where they have the lowest relative opportunity cost, even if one country is more efficient at producing everything.
: Ricardo argues that the national product is divided among three classes: landowners (rent), capitalists (profits), and workers (wages). He observed an inverse relationship where a rise in wages typically leads to a fall in profits. Key Sections and Chapters
David Ricardo: What is the Key Problem in Political Economy?