Financial work incentives for disability benefit recipients: Lessons from a randomized field experiment

Disability insurance (DI) beneficiaries lose some of their benefits if their earnings exceed certain thresholds (“cash-cliffs”). When this reduction is too high, this implicit taxation of earnings is considered to be one of the prime reasons for the low outflow from DI. This paper analyzes a conditional cash program that incentivizes work related reductions of disability benefits in Switzerland. A randomized group of DI beneficiaries receive the offer to claim a payment of up to CHF 72,000 (USD 71,000) if they take up or expand employment and reduce DI claims. This paper presents the results of the short-term evaluation by analyzing the first reactions to the announcement of seed capital. Overall, the interest in taking-up the financial incentive is low at only 3%. Individuals close to cash-cliffs react more on seed capital but the overall magnitude is small. Our results suggest that work-disincentives imposed by cash-cliffs are unlikely to be the main driver for low employment and outflow from the Swiss disability insurance system, despite the fact that the partial disability insurance system generates a non-linear budget set and bunching behavior at cash-cliffs prior to the implementation of seed capital.