Monetary incentives vs. monitoring in addressing absenteeism: experimental evidence

Exploiting two unexpected variations in sickness absence policy for civil servants in Italy, this paper assesses the relative importance of monitoring and monetary incentives in determining a basic measure of effort: presence at work. When stricter monitoring was introduced together with an average 20% cut in replacement rates for civil servants on short sick leave, sickness absence decreased by 26.4%, eliminating the wedge in absence rates with comparable private sector workers. The impact substantially decreased when a subsequent policy change brought back monitoring to the pre-reform level, while leaving monetary incentives untouched. Results are confirmed by a variety of robustness checks and are not driven by the presence of attenuation bias. No shift is detected in other types of absence as a consequence of the reforms. Given that sickness absence rates are higher in the public than in the private sector in the US and Western Europe as well, these results provide useful insights on how to draw a successful strategy for addressing absenteeism.