Ricardian economics

David Ricardo, economist, formulated the model that bears his name to explain economic interactions in international trade

The Ricardian economics is an economic model of international trade introduced by David Ricardo to explain the pattern and gains from trade in terms of comparative advantage. It assumes perfect competition and a single factor of production: labor, with constant labor requirements per unit of output that differ from country to country.

The Neo-Ricardian school is a more modern school that takes up some problems and approaches studied by David Ricardo, its main initiator being Piero Sraffa, paradoxically, who dedicated his main work to refute it.