00441nam a2200145Ia 4500008004100000100002100041245008500062260000900147300001200156504001100168650002100179650003000200700002800230773003700258181130s2018    xx            000 0 und d  aCostinot, Arnaud  aThe US gains from trade:bvaluation using the demand for foreign factor services  c2018  ap.3-23.  dSpring  aForeign commerce  aForeign commerce - U.S.A.  aRodriguez-Clare, Andres  aJournal of Economic Perspectives