TY - RPRT AU - Gerdes, Christer TI - A Note on Possible Estimation Bias When Studying Persons with Work Disability in Active Labour Market Programs PY - 2015/Aug/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 9264 UR - https://www.iza.org/index.php/publications/dp9264 AB - This study looks at the effects of participating in active labour market policy programs for persons with work disabilities. More in detail, it draws attention to the importance of taking into account the timing of when a work disability has been registered for persons attending ALMP programs. We argue that not controlling for time of events, i.e. the exact time a participant starts a program, as well as the time that person is being registered with a work disability, implies a risk of ending up with biased estimations with respect to the effectiveness of certain ALMP programs. KW - work disability KW - ALMP programs KW - endogenous selection KW - post registration bias ER -