The National Health Service (NHS) has been running a centralised model for health care procurement in England for a few years now. The current system resulted from a redesign of the NHS supply chain that has been operational since 2019 [for details, see A Sanchez-Graells, ‘Centralisation of procurement and supply chain management in the English NHS: some governance and compliance challenges’ (2019) 70(1) NILQ 53-75.]
Given that the main driver for the implementation and redesign of the system was to obtain efficiencies (aka savings) through the exercise of the NHS’ buying power, both the UK’s National Audit Office (NAO) and the House of Commons’ Public Accounts Committee (PAC) are scrutinising the operation of the system in its first few years.
The NAO published a scathing report on 12 January 2024. Among many other concerning issues, the report highlighted how, despite the fundamental importance of measuring savings, ‘NHS Supply Chain has used different methods to report savings to different audiences, which could cause confusion.’ This triggered a clear risk of recounting (ie exaggeration) of claims of savings, as detailed below.
In my submission of written evidence to the PAC Inquiry ‘NHS Supply Chain and efficiencies in procurement’, I look in detail at the potential implications of the use of different savings reporting methods for the (mis)management of scarce NHS resources, should the recounting of savings have allowed private subcontractors to also overclaim savings in order to boost the financial return under their contracts. The full text of my submission is reproduced below, in case of interest.
nao’s findings on recounting of savings
There are three crucial findings in the NAO’s report concerning the use of different (and potentially problematic) savings reporting methods. They are as follows:
DHSC [the Department of Health and Social Care] set Supply Chain a cumulative target of making £2.4 billion savings by 2023-24. Supply Chain told us that it had exceeded this target by the end of 2022-23 although we have not validated this saving. The method for calculating this re-counted savings from each year since 2015-16. Supply Chain calculated its reported savings against the £2.4 billion target by using 2015-16 prices as its baseline. Even if prices had not reduced in any year compared with the year before, a saving was reported as long as prices were lower than that of the baseline year. This method then accumulated savings each year, by adding the difference in price as at the baseline year, for each year. This accumulation continued to re-count savings made in earlier years and did not take inflation into account. For example, if a product cost £10 in 2015-16 and reduced to £9 in 2016-17, Supply Chain would report a saving of £1. If it remained at £9 in 2017-18, Supply Chain would report a total saving of £2 (re-counting the £1 saved in 2016-17). If it then reduced to £8 in 2018-19, Supply Chain would report a total saving of £4 (re-counting the £1 saved in each of 2016-17 and 2017-18 and saving a further £2 in 2018-19) […]. DHSC could not provide us with any original sign-off or agreement that this was how Supply Chain should calculate its savings figure (para 2.4, emphasis added).
Supply Chain has used other methods for calculating savings which could cause confusion. It has used different methods for different audiences, for example, to government, trusts and suppliers (see Figure 5). When reporting progress against its £2.4 billion target it used a baseline from 2015-16 and accumulated the amount each year. To help show the savings that trusts have made individually, it also calculates in-year savings each trust has made using prices paid the previous year as the baseline. In this example, if a trust paid £10 for an item in 2015-16, and then procured it for £9 from Supply Chain in 2016-17 and 2017-18, Supply Chain would report a saving of £1 in the first year and no saving in the second year. These different methods have evolved since Supply Chain was established and there is a rationale for each. Having several methods to calculate savings has the potential to cause confusion (para 2.6, emphasis added).
