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*035  $a(EXLNZ-47BIBSYS_NETWORK)990416176904702201
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*1001 $aLavy, Victor$0(NO-TrBIB)90618436$_34093600
*24510$aPerformance pay and teachers'effort, productivity and grading ethics$cVictor Lavy
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2004
*300  $a35, [23] s.$bfig.
*4901 $aWorking paper series / National Bureau of Economic Research$v10622
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v10622$w999105437124702201$_13074900
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