00451pab a2200145 454500008004000000100001900040245011600059260000900175300001300184362001100197650001300208700001900221700001900240773004600259180718b2010   xxu||||| |||| 00| 0 eng d  aGoldhaber, Dan  aTeacher career paths, teacher quality, and persistence in the classroom: Are public schools keeping their best?  c2010  ap.57-87.  aWinter  aTeachers  aPlayer, Daniel  aGross, Betheny  aJournal of Policy Analysis and Management