Despite much vaunted efficiency drives across Whitehall, departments continue to pay vastly differing prices for basic items such as A4 paper and energy.
The differences between departments' basic procurement costs remain even after the Efficiency Review by Sir Philip Green in October 2010 which highlighted the problem.
The TaxPayers' Alliance have the latest data on this problem from 2011.
3:58 PM 19, Jul 2017 Katherine Harvey
12:25 PM 19, Jul 2017 Harry Davis
12:18 PM 19, Jul 2017 Thomas Overend
4:19 PM 18, Jul 2017 Taylor Boyce
5:00 PM 17, Jul 2017 James Price
5:00 PM 10, Jul 2017 James Price