As this e-petition has received more than 10 000 signatures, the relevant Government department have provided the following response:
Cumulative impact analysis is not being withheld – it is very difficult to do accurately and external organisations have not produced this either. (Edit:*see note below)
The Government is limited in what cumulative analysis is possible because of the complexity of the modelling required and the amount of detailed information on individuals and families that is required to estimate the interactions of a number of different policy changes. In addition, the Government's programme of welfare reform will not be fully implemented until 2017/18 and many policy details are still to be worked through. Equality Impact Assessments are however carried out for individual policies where there is a requirement.
No other organisation produces this analysis in a robust way. The Treasury does publish some cumulative analysis with each Budget but this is a broad brush assessment of all tax, benefit and expenditure changes since 2010 across households. Because the Budget cumulative analysis is so complex, it is not robust enough to break down by family type – so impacts on disabled people cannot be shown separately.
The IFS also produces some cumulative analysis but also do not feel the results are reliable enough to disaggregate for the disabled.
This e-petition will remain open to signatures until the published closing date and will be considered for debate by the Backbench Business Committee should it pass the 100 000 signature threshold.
*Note : Scope/Demos HAVE done their view of a cumulative assessment.