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040 _aIEF
_cES-MaIEF
245 _aTrade policy under imperfect competition
_ba numerical analysis
260 _aLondon
_b Centre Ec. Policy Research
490 _aCentre Ec. Policy Research. Discussion papers series ; 412
650 4 _950223
_aCOMUNIDAD ECONOMICA EUROPEA
650 4 _948066
_aPOLITICA ECONOMICA
650 4 _948051
_aPOLITICA COMERCIAL
942 _cLIB
_2udc
942 _2udc