10 10 2010 2010 Working Paper INSTITUTO DE POLÍTICAS Y BIENES PÚBLICOS (IPP) KNOCKING DOWN SOME ASSUMPTIONS ABOUT THE EFFECTS OF EVALUATION SYSTEMS ON PUBLICATIONS CARMEN OSUNA LAURA CRUZ CASTRO LUIS SANZ MENÉNDEZ CONSEJO SUPERIOR INVESTIGACIONES CIENTÍFICAS (CSIC) INSTITUTE OF PUBLIC GOODS AND POLICIES (IPP-CCHS)