It all started with wine from Portugal. And it's served as the foundation to free trade. A key trade theory turns 200 years old Wednesday. The marquee birthday comes at a time when President Trump ...

England has a comparative advantage in making cloth, as opposed to wine, where it is so much less efficient than the Portuguese. The father of comparative advantage, economist David Ricardo ...

As David Ricardo wrote in the early 1800s, specialisation by countries can lift the overall output and availability of goods ...

There was a booming trade in cloth and wine, and it was essentially part ... was actually a huge critic of the great classical economist David Ricardo. He thought Ricardo had taken the science ...

Near the end of his 1817 treatise, “On the Principles of Political Economy and Taxation,” David Ricardo advanced ... Portugal should make the wine, Britain the cloth, and they should trade ...