I am not now looking at recommendations for action. I am just looking at what evidence we have that incentives either way work for the disabled community because that is the issue that noble Lords are querying. Let me go on. A paper by Barr et al, published by the Journal of Epidemiology and Community Health in 2010, asks:
“To what extent have relaxed eligibility requirements and increased generosity of disability benefits acted as disincentives for employment?”.
It finds that eight out of 11 studies reported that benefit levels had a significant negative association with employment. To pick up the point made by the noble Lord, Lord Low, about the level of the evidence, while they state that they cannot quantify the size of the effect, they conclude that there definitely is one. The most robust study in that paper, by Hesselius and Persson from 2007, demonstrated a small but significant negative association. The final paper, by Kostøl and Mogstad from 2012, is about evidence from Norway regarding a positive incentive structure allowing disabled claimants to retain more of their benefits when moving into work, which resulted in more claimants starting work. The study shows the impact of financial incentives on disabled people able to undertake preparation for work or work itself, which is a group synonymous with our WRAG population.