Welfare Reform Bill

I apologise if I missed this because I know that the Minister has had an awful lot of ground to cover on so many different amendments, but did he explain why the assessment period is being included? The way that the policy has been put across is that if you are in the WRAG, you will get contributory ESA for only a year. But actually that is a year minus 13 weeks because you get a lower rate of benefit for that. Apart from cost, and by 2016-17 only a third minus 3 per cent of the savings would be forgone—I realise it is more up front, but it diminishes—what is the principal reason for including the assessment period?