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.
4:04 PM 23, May 2018 Matt Gillow
4:20 PM 14, May 2018 James Price
3:34 PM 08, May 2018 Matt Gillow
8:44 AM 13, Apr 2018 Jan Zeber
2:44 PM 11, Apr 2018 Jan Zeber
11:23 AM 15, Mar 2018 Jan Zeber