000 00300nam a2200121Ia 4500
008 231018s9999||||xx |||||||||||||| ||und||
040 _aMAIN
100 _aDuflo,E
_920279
245 0 _aAmerican economic journal: applied economics
260 _aPA
_bAEA
_c2012
300 _a1-274
_b4(3-4)
942 _cBJ
999 _c55258
_d55258