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.
10:22 AM 24, Oct 2016 Harry Fairhead
10:10 AM 18, Oct 2016 The TaxPayers' Alliance
12:58 PM 14, Oct 2016 Sunny Chen
9:16 AM 13, Oct 2016 The TaxPayers' Alliance
1:00 AM 13, Oct 2016 The TaxPayers' Alliance
2:41 PM 12, Oct 2016 Tom Banks