icits and the change in debt levels results from the fact that public debt is a gross concept,
while deficits are a net concept. For example, if a government issues debt and deposits the
proceeds in a bank acco unt, the effect on the deficit is zero, while gross debt increases.
Stock-flow adjustments result from five main issues: (1), issuance of zero coupon bonds.
Consider a bond, which is issued for 90 Euro to cover a deficit and has a face value of 110.
This operation is recorded as a deficit of 90 and a stock-flow adjustment of 20 in the year
of issuance, since the debt level at face value increases by 110. In the following four periods
until maturity, an interest of 5 accrues, impac ting on the deficit, the debt level stays con-
stant, the stock-flow adjustment is 5 in each period. As can be seen, stock-flow adjust-
ments of zero coupon issuances should cancel out over time. (2) Revaluation of debt
denominated in foreign currency changes the face value of the debt, without having any
impact on the budget. Revaluation of foreign denominated debt should only matter if a
country has a depreciating currency ov er a long period. Foreign denominated debt does
not play any significant role in any of the EU 15 countries. Exchange rate effects are
<0.2% of GDP in general (ECB, 2004, Table 6.3.2). (3) Time-of-recording effects: Deficits
are measured in accrual terms, while debt is a cash concept. For example, when UMTS
licenses are sold, this has an effect on the deficit in the year of selling, so when the receipts
accrue, however, debt is only reduced when the (cash) receipts are used to buy back the
debt. The time of recording effect should usually cancel out after some years.
7
The only
two remaining issues, where long and persisting positive stock-flow adjustments can be
expected, are (4), equity injections in and privatization of public companies and (5), trans-
actions in financial assets. Selling of financial assets reduces gross debt, however, it has no
effect on the deficit ac cording to the rules of the ED P and the SGP.
Capital injections into public companies are an important tool to hide deficits and
incur increases in the debt level, resulting in positive stock-flow adjustments. The opera-
tion must be recorded as an equity injection or transaction in shares and other equity,
i.e., the government has to declare to have a lasting economic interest in the public com-
pany in the sense of intending to receive a market interest rate. If the injection is used to
cover recurring losses of the public company, it should be recorded as a current transfer,
which leaves the stock-flow adjustment unaffected. In practice, it is very difficult to con-
trol whether injections have been correctly recorded.
8
Capital injections can therefore be
used to shift public expenditure from the (deficit-relevant) state sector to public compa-
nies. Thereby, the deficit is reduced, while the change in debt level captures the ‘‘true’’
public spending. A positive stock-flow adjustment results.
9
These mechanisms have also
attracted the attention of the European Commission. Joaqu ı
´
n Almunia, EU monetary
7
Interest accrued affects net borrowing/net lending. ‘‘For government debt under EDP (at nominal value, not
including accrued interest) interest due but not paid is to be recorded under Other accounts payable (F.79), as
long as it is not paid (ESA95, §5.131). In the EDP, interest arrears under Other accounts payable are not
accounted for in the government debt’’ (Eurostat, 2002, p. 199). Thus, interest payments are recorded in the
deficit when they accrue, even if they are not paid yet, and should in this case lower stock-flow adjustments as they
are not recorded in the debt according to EDP. In the long-run, interest payments are without effect on stock-flow
adjustment.
8
The sale of non-financial assets reduces the deficit, as it is recorded as negative investment or more precisely
negative public ‘‘gross fixed capital formation’’.
9
Public-private partnerships can also be used to hide deficits. However, they will not automatically be seen in
the form of stock-flow adjustments.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3263