15/03/29 12:13:32.95 t2hZN/2s.net
>>95の続き
Also, there’s an odd dynamic involving the role of international trade
in the history of economics. Comparative advantage was an early, classic
example of how economic reasoning can lead to results that are true but
not obvious; naturally, economists have always wanted this intellectual
victory to be important in the real world too. This leads to the odd dynamic:
comparative advantage says “yay free trade”, but also suggests that
once trade is already fairly open, the gains from opening it further are small.
But because economists want to keep shouting yay free trade, they look for
reasons why those gains might be larger --- even though the stories they then
end up telling are inconsistent with the competitive model that was the basis
for free-trade advocacy in the first place.