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.
12:01 AM 14, Aug 2017 Duncan Simpson
10:48 AM 11, Aug 2017 Rory Meakin
2:23 PM 09, Aug 2017 Jan Zeber
12:29 PM 09, Aug 2017 Rory Meakin
11:15 AM 08, Aug 2017 Ben Ramanauskas
10:00 AM 04, Aug 2017 Ben Ramanauskas