Comparative effectiveness research is under attack as a new way to limit access to the best health care. Nothing could be further from the truth—in fact, it’s the exact opposite. Comparative ...

Discover how globalization enhances comparative advantage, driving economic efficiency in both developed and developing ...

David Ricardo, a Scottish economist, made a perceptive observation that a few individuals, firms, or countries can gain from trading, even if one of them is objectively the best in all activities.

Martin Richardson does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...