005920000a22001690004500082002500000100002900025110005000054245010400104260002800208260001300236300001200249490002800261650001800289041001000307999001500317952009000332  a  US/Wil.C/DE/Rp-156  a  aMacunovichbDiane J.  a  aWilliams CollegebDepartment of Economics  a  <An> evaluation of the butz-ward hypothesis on countercyclical fertility: technical documentation  ab  aMassachusettscUS  c  a1990  a  a27p  aResearch paperbno. 156  a  <Fertility>  a  Eng  c5614d5614  00104070aBIDSLDCbBIDSLDCcGENd2017-05-08p  84317r2017-05-08t1w2017-05-08yBK