Hiring Workers with Disabilities when a Quota Requirement Exists: The Relevance of Firm’s Size

We evaluate the impact of a mandatory quota of workers with disabilities using a sharp regression discontinuity design. We use data from a panel of Spanish firms where there is a mandatory quota of 2 % for firms with 50 or more workers. Non-parametric estimations show that strictly beyond the cut-off of 50 workers there is an increase of 1.4 points in the percentage of workers with disabilities in the firm, just fulfilling the quota of 2 %. However, this effect has some lack of precision. In addition, for larger firm’s sizes the variation in the percentage of workers with disabilities is likely related with differences in firms’ characteristics. dependence and endogenous initial conditions.