David Ricardo

David Ricardo developed the theory of comparative advantage. Relevant web resources include:

David Ricardo (by Yousuf Dhamee): A brief summary of Ricardo's work and a discussion of the relationships among the theories of Adam Smith, David Ricardo, Robert Malthus, and Karl Marx.
David Ricardo (WTO site): A brief biographical note on Ricardo at the World Trade Organization.
An Essay on Profits (by David Ricardo): An online copy of David Ricardo's essay on the Corn Laws. This essay sets out Ricardo's arguments against trade restrictions.
On the Principles of Political Economy and Taxation by David Ricardo: An online edition of David Ricardo's economics text.