00373pab a2200145 454500008004000000100001900040245005000059260000900109300001700118362000800135650001400143700002100157700002000178773002900198180718b2011   xxu||||| |||| 00| 0 eng d  aCrump, Richard  aFertility and the personal exemption: Comment  c2011  ap.1616-1628.  aJul  aFertility  aMumford,Kevin J.  aGoda, Gopi Shah  aAmerican Economic Review