This difference is attributed to the role of SP in insuring liquidity since SP is estimated to be over three times as large for this group compared with formal-sector job losers with between 24 and 48 months in their previous job. The quantitative difference is relatively large. Hijzen (2011) shows that the probability of returning to work would have been about 1.7 times as high without the difference in severance pay at the start of non-employment.