000 00282nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aJournal of Economic Literature
260 _aAmerican Economic Assu.
_bNashville
_c1 Jan-30 Jun,2012
362 _a50-50
_b01-Feb
942 _2ddc
_cJ
999 _c183531
_d183531