Costinot, Arnaud; Donaldson, Dave - In: American Economic Review 102 (2012) 3, pp. 453-58
When asked to name one proposition in the social sciences that is both true and non-trivial, Paul Samuelson famously replied: 'Ricardo's theory of comparative advantage'. Truth, however, in Samuelson's reply refers to the fact that Ricardo's theory of comparative advantage is mathematically...