Example image of eyePlorer eyePlorer map for 'Ricardian economics': Adam Smith David Ricardo Stock broker The Wealth of Nations On the Principles of Political Economy and Taxation Comparative advantage Das Kapital Inflation Precious metal International trade Tariff Good (economics) Opportunity cost Renting Minimum wage Wage Profit (economics) John Gray List of eponymous adjectives in English C. H. Douglas James Mill Richard Whately