000 00371pab a2200157 454500
008 180718b2004 xxu||||| |||| 00| 0 eng d
100 _aAlcala, Francisco
245 _aTrade and productivity
260 _c2004
300 _ap.613-46.
362 _aMay
650 _aTrade
700 _aCiccone, Antonio
773 _aQuarterly Journal of Economics
909 _a60530
999 _c60530
_d60530