Self-Sufficiency Project (SSP) – An Econometric Analysis of the Incremental Impact of SSP Plus


This working paper evaluates both the short-term and the long-term incremental impact of SSP Plus on the duration of periods of full-time employment and periods during which participants were not working full time. It examines whether SSP Plus had any additional impact on these durations beyond those created by the SSP earnings supplement alone. Estimates of the “effect of the treatment on the treated” are generated, where the “treated” are defined as those in the SSP Plus and regular SSP program groups who qualified for the earnings supplement by finding a full-time job within the first
12 months after random assignment. The study finds evidence of the impact of SSP Plus on unemployment and employment durations during the period when those who took up the earnings supplement were still eligible for that supplement.