ࡱ> IKHnq` ^bjbjqPqP .~::V%|80Dt40 32 " ;3=3=3=3=3=3=3$4hV7na3s" s"s"a3 v3+++s"&  ;3+s";3++:1,2  @$f1 33031R8%8282 Z !@+L!4! a3a3' 3s"s"s"s"0 0 0 40 0 0 4t.Jx Finance Committee: Inquiry into Methods of Funding Capital Investment The Capital Charge: Problems Arising from the Misapplication of Current Cost Accounting . Jim Cuthbert Margaret Cuthbert May 2008 1. Introduction 1.1 At our appearance before the Finance Committee on 29th April, we made the point that one of the factors which had contributed to the observed problems with PFI had been the implications of the governments capital charge rules: and that this in turn related to a more basic problem concerning the misapplication of the principles of current cost accounting. The Committee requested us to provide a note, explaining these points in more detail: and this we are happy to provide. 1.2 The Committee will wish to be aware, however, that the problems with current cost accounting go beyond PFI. Related problems arise in relation to the method of setting utility prices widely used in the UK, and this impacts on capital investment in utilities and its funding. In fact, it was with regard to utility pricing that we first became aware of the problems with current cost accounting. There is a discussion of utility pricing in section 2 of this note. 1.3 In a 1995 White Paper, the then government at Westminster set out proposals for a new system of government accounting, called Resource Accounting and Budgeting, (RAB). RAB is a method of taking into account the full cost of assets consumed in the delivery of a government service. Essentially, in preparing their budgets, government departments count against their Departmental Expenditure Limit (DEL) the cash costs of providing services, together with what are known as non-cash costs. These non-cash costs arise from capital spend by the Department and are a. the current cost estimate of the capital depreciation of the Department: the current cost depreciation of a capital asset of life n years is 1/n times of the original capital value, uprated to todays prices: and, b. a capital charge resulting each year from the original capital investment. The capital charge is calculated as a rate of interest times the residual value, (having taken off depreciation), of the capital stock measured at todays prices. Between 1997 and 2003 the rate of interest used by the government for the capital charge was 6% in real terms: this became 3.5% in real terms in 2003. As both the capital charge and depreciation are worked out on the value of the original asset uprated for inflation, (that is, at current prices), RAB is an application of current cost accounting. 1.4 Principal justifications put forward for the use of RAB are that It is an attempt to measure the full resource consumption of government. It does this in a way which is largely independent of the accident of the year when the particular assets were acquired. It is an attempt to make departments aware of the opportunity costs of the assets which they own. We should stress that we regard these as perfectly legitimate objectives for a government to attempt to attain: and while there is scope for plenty of debate as to whether RAB is an effective way of obtaining these objectives, we are not arguing that RAB is fundamentally wrong when viewed as a tool for attaining these specific aims. 1.5 However, a tool which is quite well suited to one particular purpose may be quite the wrong thing for another purpose: and this is the problem with RAB. The basic problem, as we will demonstrate, is that the RAB measure of the resource cost of the capital asset is significantly greater than the cost of financing the provision of that asset. This means that, if the government works out the RAB resource cost of a given capital asset, and then gives this amount of cash to the private sector to provide exactly the same asset, then the private sector could provide the asset, and at the same time, bank a very significant profit. This does not mean that the private sector is any more efficient: all this reflects is the fact that the private sector operator would legitimately regard as profit certain elements which RAB accounting would regard as non-cash costs associated with provision of the asset. 1.6 In the following section, we will use the example of utility pricing to demonstrate that resource costs as measured in RAB or current cost accounting terms typically greatly overstate the actual financing costs of capital assets. In Section 3 we will then consider the implications for PFI: we will show how the effects of the current cost capital charge have been to significantly distort both the VFM and Affordability tests in many PFI schemes. This will have contributed materially to the high levels of cost and profit in certain PFI schemes which we noted in our earlier submissions to the Committee. 2: The Distortions arising from Current Cost Accounting: The Case of Utility Pricing. 2.1 In many ways, the intellectual antecedents of RAB are to be found in a report by the Treasury (1986), which considered the problem of how the accounts of nationalised industries should be presented in an era of high inflation, and which put forward proposals based on the principles of current cost accounting. This was followed by the development of the Current Cost Regulatory Capital Value, (CCRCV), method for setting prices in the privatised water industry in England and Wales in the early 1990s, an application of current cost accounting which preceded the introduction of RAB in central government: the CCRCV method has now been applied in water and other utilities throughout the UK. 2.2 It was in relation to utility pricing that we first became aware of the potential distortions that could arise from the misapplication of current cost accounting: so it is in this area that these effects are best documented. However, the principles involved in the CCRCV method are exactly analogous to the capital charge rules used in RAB: so, as we will show in the next section, there is an immediate read over to the effects of the capital charge under PFI. 2.3 The CCRCV approach involves setting utility prices so as to cover, as regards the cost of the capital assets used by the operator, a) an allowance for depreciation, where this is assessed in current cost terms. b) an allowance for the cost of capital, based on the market rate of interest applied to the value of the capital assets employed by the operator, where the capital stock is valued at current prices. Since both depreciation and the allowance for the cost of capital are based on the value of capital assets assessed at current prices, CCRCV is indeed an application of current cost accounting. However, what the utility operator actually has to pay out to the market, to fully fund the provision of capital, is equal to depreciation and interest calculated at historic cost. Since current cost depreciation and interest are normally greater than historic cost depreciation and interest, the CCRCV method thus leaves the operator with a financial surplus. 2.4 A paper by Cuthbert and Cuthbert, (2007) examines the implications of this in detail. In particular, the paper sets out the underlying algebra, and shows that, as a result of CCRCV pricing, the utility operator will typically benefit from a windfall profit on any capital invested: this profit is a function of the rate of interest, the rate of inflation, and the length of asset life. The profit will commonly be very significant. For example, for an interest rate of 5% , with inflation running at 2.5%, and an asset with a thirty-year life, the operator will receive a windfall profit of over 40% of the value of the capital asset. The consequences, as discussed in the paper by Cuthbert and Cuthbert, include Overcharging, and excess profits. For a privatised utility, excess dividend payments. For a non-privatised utility, funding an undue proportion of capital from revenue. Likely distortion of the capital investment programme, as capital investment itself becomes a profitable activity for the utility. 3: Implications for PFI 3.1 Under RAB, central government departments, public corporations and health boards have to account for their assets based on the principles of current cost accounting. As explained in paragraph 1.3 above, this means that they have to account for depreciation in current cost terms, and a capital charge based on the current value of their capital assets. These arrangements are formally equivalent to the principles underlying CCRCV: and just as we have seen for CCRCV, the capital costs as assessed under RAB overstate the actual funding costs of providing the capital assets. The effect of this has been to distort both the value for money and affordability comparisons in many PFI projects, as will now be shown. 3.2 The Value for Money, (VFM), comparison in a PFI project is the stage at which the net present value, (NPV), of the PFI project is compared with the NPV of the Public Sector Comparator, (PSC): the NPV of the PFI has to be less than that of the PSC, or the project should not proceed. The first point to make is that, according to the wording of the Treasury Green Book guidance on PFI, this comparison should not be distorted by the capital charge which will be due on the PSC: consider the following quotation from the Green Book:- 5.21 Depreciation and capital charges should not be included in an appraisal of whether or not to purchase the asset that would give rise to them, (although for resource budgeting purposes they may be important.) Depreciation is an accounting device used to spread the expenditure on a capital asset over its lifetime. Capital charges represent the opportunity cost of funds tied up in the capital assets, once these assets have been purchased. They are used to test the value for money of retaining an asset. They should not be included in the decision whether or not to purchase the asset in the first place. 3.3 Despite this guidance, however, misapplication of the principles of current cost accounting has indeed distorted the VFM comparison in some PFI projects, in a way which has been equivalent to burdening the PSC side of the comparison with the costs of current cost depreciation and capital charge. This arises through the effects of the discount factors used in the PSC and PFI comparison. We take the New Royal Infirmary of Edinburgh project as an illustration. 3.4 To understand what has been going on, it is necessary first of all to state some facts about the calculation of NPVs, and the effects of different discount rates:- a) Suppose a capital sum is borrowed at a given rate of interest, and that the resulting stream of historic cost depreciation and interest charges is worked out. Then if this stream of historic cost depreciation and interest payments is discounted at a discount rate equal to the original rate of interest, then the resulting NPV is equal to the original capital sum. (This is a standard result about NPVs.) b) Suppose a capital sum is borrowed at a given rate of interest, and that the resulting stream of current cost depreciation and capital charges is worked out, assuming a particular rate of inflation. Then if this stream of depreciation and capital charge payments is discounted at a discount rate equal to the original rate of interest plus inflation, then the resulting NPV is equal to the original capital sum. (A proof of this is given in the Annex.) 3.5 So, has the capital charge been included in the PSC, so distorting the value for money comparison with the PFI? Consider how the VFM comparison was carried out for the NRIE. What appeared in the PSC, as regards capital costs, were the actual capital construction costs of the hospital, in the years in which these were incurred. On the PFI side of the comparison, what was included was not the initial capital costs, but the stream of resulting unitary charge payments, (including debt service costs). The discount rate used, in line with the then current Treasury guidance, was a real rate of 6% - which is equivalent to about 9% in nominal terms: this discount rate is therefore close to the rate of interest at which a Department could have borrowed from the National Loan Fund, plus inflation. 3.6 It might appear, at first sight, that no allowance has been made for the effects of the capital charge on the PSC side of the NRIE VFM comparison. The important point, however, is that the discount rate used is equal to the NLF rate of interest, plus inflation. By 3.4b) above, therefore, the approach adopted on the PSC side of the comparison, of including the capital build costs of the project when they were incurred, is equivalent to including on the PSC side of the comparison the stream of current cost depreciation and capital charge payments which would result from the original spend: and then discounting these at the high discount rate of NLF interest plus inflation. In other words, the cost of the capital charge actually is included on the PSC side, even if this is not obvious. 3.7 There are two possible ways in which the cost of the capital charge could have been excluded from the comparison, so resulting in a calculation which would have conformed to the Treasury guidance: this could have been done either by a) including on the PSC side, not the initial capital costs when they were incurred, but the resulting stream of historic cost depreciation and interest charges: and then discounting this stream at the high discount rate of NLF interest rate plus inflation. This would have resulted in a contribution to the NPV of the PSC side which was lower than the original capital cost: while the NPV on the PFI side remained the same: or by b) including on the PSC side the initial capital build cost when it was incurred: but then using a discount factor, (on both the PSC and PFI sides), which was equal to the NLF rate of interest. This would have led to a higher NPV on the PFI side of the comparison. Either of these approaches would have led to a fair comparison between the PSC and PFI options, undistorted by any effect of a capital charge on the PSC side of the comparison, and in line with the principle set out in the Green Book. But in fact, as we have seen, the actual way the comparison was carried out did amount to the inclusion of the capital charge on the PSC side, and therefore did involve a comparison which was biased against the public sector option, by the amount of the capital charge. 3.8 While we have illustrated the distortion of the VFM test with reference to the specific case of the NRIE, it is likely that all PFI VFM comparisons were similarly distorted until 2003, when the Treasury revised downwards their guidance on the discount rate to be used in VFM comparisons, from 6% real to 3.5% real. 3.8 Now consider the effect of the capital charge at the stage of assessing affordability. Again, we illustrate with reference to the NRIE. As we pointed out in our earlier submission, in the formal affordability calculation for the NRIE, the capital charge which would be levied on the NRIE under the public sector procurement model is calculated for a single year only. The capital charge is calculated as 1/45th of the capital cost of the building, plus 6% of the total capital cost. This single year presentation of the capital charge is potentially highly misleading. Had it been calculated for subsequent years, it would have been seen that, for example, the capital charge in year 2 would be 1/45th of capital cost, plus 6% interest on 44/45ths of the capital value (uprated for inflation), with the proportion of the capital value on which the interest component is levied declining by 1/45th in each subsequent year. Even though the capital charge is uprated for inflation each year, the overall effect is that the capital charge will be fairly stable over the life of the project. Just how misleading the effect of the single year presentation could be is illustrated by the following quotation from para 14.6 of the Addendum to the Full Business Case, Under PFI the facilities payments are indexed at RPI 50% compared to the Public Sector Option where it is reasonable to assume that capital charges, based on regularly revalued assets, will increase in line with inflation. If an inflation rate of 3% is assumed, partial indexation under PFI compared with full indexation yields a net present value benefit of 42 million. (Our underline.) Contrary to this quotation, it is totally unreasonable to assume the capital charges will increase with inflation: they will in fact be relatively stable. The appropriate comparison in the above quotation would be to compare the PFI facilities payment, indexed at RPI/2, with an effectively flat capital charge under the Public Sector Comparator. This would show this element of the PFI increasing much faster than the PSC capital charge, rather than the reverse. This highly misleading approach is likely to have given the Trust a quite unreasonably optimistic view of the long term affordability of the PFI option. 3.9 This is not an isolated case. Another example is the PFI project at Mearnskirk, designed to provide a residential facility for the elderly in the South West of Glasgow. In this scheme, the cost per place/week for the PFI option was assessed at 502, of which 88.70 represented the cost of PFI capital financing. This was somewhat higher than the capital costs the Trust would have paid if it had gone down the PSC route, which were assessed at 80.90. It was then stated that the costs of capital financing in the PFI would be indexed over the period of the concession at full RPI: and Greater Glasgow Health Board gave its support to the PFI project based on average costs of no more than 502 per week in real terms, (which again implies indexation at full RPI). The implicit comparison with the PSC capital cost figure is, however, potentially very misleading. The PSC capital cost figure represents the year 1 capital cost, worked out at a real interest rate of 6%: there is no mention of the facts that a) the PSC capital costs will not increase in line with inflation, since the capital charge element is calculated on a declining proportion of the original capital value. b) in any event, PSC capital costs increasingly diverge from funding costs, because the PSC capital costs are based on current cost accounting. So even if the profile of PSC capital costs had been correctly presented, this is more than a private contractor would have needed to pay for an equivalent amount of capital finance. If either or both of these points had been brought out, it would have called into question the decision to index the whole availability charge in line with RPI. Conclusion. 1. This note has illustrated:- a) how resource costs as measured by the principles of current cost accounting seriously overstate the funding costs of providing capital assets: the misuse of resource costs can therefore cause serious distortions. b) how these distortions have arisen in the case of PFI, both as regards VFM and affordability comparisons. c) that there are also significant implications for the method of utility pricing currently used in the UK. 2. If, as seems likely, the forthcoming changes in accounting practices mean that all PFI projects come on the books, then this should greatly simplify the situation as regards PFI - since the effect will be that capital charges apply equally to both sides of the VFM and affordability comparisons. What is required will be to ensure that the effects of the capital charge are handled on a completely equivalent basis in both the PSC and the PFI. However, given the subtle ways in which distortions can occur, (witness the above discussion of discount factors), great care will still need to be exercised to ensure that capital charges do not continue to have perverse effects. References Cuthbert, J.R., Cuthbert, M., (2007): Fundamental Flaws in the Current Cost Regulatory Capital Value Method of Utility Pricing: Fraser of Allander Institute Quarterly Economic Commentary, Vol 31, No.3. Treasury, (1986): Accounting for Economic Costs and Changing Prices, (commonly known as the Byatt Report). Treasury: The Green Book: Appraisal and Evaluation in Central Government. Annex: Proof of para 3.4b. Suppose that an amount of 1 is borrowed at the end of period 0: that the interest rate is  EMBED Equation.3 , and that the loan is for n years, with the first payment of interest and depreciation at the end of year 1. Then, under the assumption of straight line depreciation, the payment of historic cost interest and depreciation in year k is  EMBED Equation.3  for k= 1 to n. Discounting this stream of payments back to prices at end year 0, using the discount rate  EMBED Equation.3 , gives a net present value described by the following sum: NPV =  EMBED Equation.3  (A) It is a standard result, (not proved here), that expression (A) equals the original investment, namely, 1. Now suppose that the rate of inflation is r, and that, instead of historic cost depreciation and interest, the stream of payments consists of current cost depreciation and capital charge. Then the combined depreciation and capital charge payment in year k is  EMBED Equation.3  for k= 1 to n. Suppose that this stream of payments is discounted back to prices at end year 0, using a discount rate equal to the interest rate increased by the rate of inflation: (in the text, this was described loosely as interest plus inflation: more accurately what we mean is  EMBED Equation.3 , which, since  EMBED Equation.3 are small is approximately equal to  EMBED Equation.3 .) Then the resulting NPV is given by the following sum:- NPV =  EMBED Equation.3  =  EMBED Equation.3  =  EMBED Equation.3  , since the terms  EMBED Equation.3  cancel out on top and bottom. But this expression is exactly the same as expression (A) above for the NPV of the stream of historic cost payments: this proves the assertion in 3.4 b.     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