What do deficits tell us about debt?
Empirical evidence on creative accounting with
fiscal rules in the EU
Ju
¨
rgen von Hagen
a,1
, Guntram B. Wolff
b,
*
a
ZEI, University of Bonn, CEPR, and Indiana University, Walter-Flex-Str. 3, 53113 Bonn, Germany
b
Deutsche Bundesbank, ZEI-University of Bonn and UCIS-University of Pittsburgh,
Wilhelm-Epstein-Straße 14, 60431 Frankfurt am Main, Germany
Available online 24 July 2006
Abstract
Fiscal rules, such as the excessive deficit procedure and the stability and growth pact (SGP), aim
at constraining government behavior. [Milesi-Ferretti, G., 2003. Good, bad or ugly? On the effects of
fiscal rules with creative accounting, Journal of Public Economics, 88, 377–394] develops a model in
which governments circumvent such rules by reverting to creative accounting. The amount of this
depends on the reputation cost for the government and the economic cost of sticking to the rule.
We provide empirical evidence of creative accounting in the European Union. We find that the
SGP rules have induced governments to use stock-flow adjustments, a form of creative accounting,
to hide deficits. The tendency to substitute stock-flow adjustments for budget deficits is especially
strong for the cyclical component of the deficit, as in times of recession the cost of reducing the def-
icit is particularly large.
2006 Elsevier B.V. All rights reserved.
JEL classification: E62; H61; H62; H63; H70
Keywords: Fiscal rules; Stock-flow adjustments; Debt-deficit adjustments; Stability and growth pact; Excessive
deficit procedure; ESA 95
0378-4266/$ - see front matter 2006 Elsevier B.V. All rights reserved.
doi:10.1016/j.jbankfin.2006.05.011
*
Corresponding author. Tel.: +49 69 9566 3353.
E-mail addresses: [email protected] (J. von Hagen), guntram.wolff@bundesbank.de (G.B. Wolff).
1
Tel.: +49 228 73 9199.
Journal of Banking & Finance 30 (2006) 3259–3279
www.elsevier.com/locate/jbf
1. Introduction
Fiscal rules aim at constraining the behavior of governments. They are introduced to
reduce rent seeking behavior of politicians, to mitigate common pool pro blems, and,
ultimately, to prevent undesired fiscal outcomes (von Hagen, 2002). The European
Economic and Monetary Union (EMU) provides an important example. Governments
in a monetary union have an incentive to run excess ive deficits and accumulate exces-
sive debts. High deficits and debt levels increase the pressure on the central bank to
monetize them and create inflation. Anticipating this, the private sector adjusts inflation
expectations upwards, resulting in higher nominal interest rates.
2
But since the
(expected) inflation from monetizing a given amount of government debt is spread over
all members of the monetary union, the cost of excessive deficits and debts in terms of
higher inflation and interest rates is smaller, and the incent ive for profligate fiscal
behavior is larger for each individual government than in the case of a national
currency.
Recognizing this problem, the governments of the EMU member states have adopted a
set of rules to strengthen fiscal discipline. These fiscal rules feature a limit on the annu al
general government budget deficit of 3% of GDP and a limit on general government debt
of 60% of GDP. In practice, the deficit lim it is considered to be the more important one in
the policy debate.
Fiscal rules necessarily refer to specific budgetary items and data. Governments can
shift fiscal expenditures off the budget, i.e., revert to creative accounting, to circumvent
such rules. Milesi-Ferretti (2003) analyzes the effect of fiscal rules on creative accounting
in a model based on von Hagen and Harden (1995, 1996). In this model, the government
has an incentive to circumvent the rule by hiding fiscal policies in less visible positions. The
likelihood of creative accounting decreases in the cost the government has to bear if
the cheating is detected. Furthermore, creative accounting is the more likely, the higher
the economic costs of sticking to the rule are. If strict rules prevent the appropriate
response of fiscal policy to (business cycle) shocks, the likelihood of creative accounting
increases in the model.
3
The optimal design of a fiscal rule should take the possibility of
creative accounting into account. As a result, an optimal rule is likely to be stricter in
the presence than in the absence of creative accounting.
A number of authors have investigated the effects of fiscal rules. The literature
generally assesses the effect on the fiscal aggregate constrained by the rules , and, in a
second step, the effect on other, non-constrained fiscal positions. von Hagen (1991)
empirically investigates the effects of fiscal restraints on state budgets in the US and
shows that they induce substitution out of restricted into non-restricted debt instruments.
Bunch (1991) and Sbragia (1996) show that debt limits on state or local governments
in the US have led to an increased use of non-constrained public authorities to issue
2
In the absence of perfect international capital mobility, high debt levels may also lead to higher real interest
rates.
3
Milesi-Ferretti shows that more transparency of the budget is only desirable at very low levels of budget
transparency, since in this case, governments tend to let the budget fluctuate too much. At high levels of
transparency, a further increase of transparency would hinder the working of automatic stabilizers too much and
is therefore not optimal.
3260 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
debt. Poterba (1994) shows that more restrictive state fiscal rules are correlated with
more rapid fiscal adjustment to unexpected deficits. Kiewiet and Szakaly (1996)
show that restrictive provisions to limit debt issuance at the state level result in the
devolution of debt issuance to governments at the local level. Bohn and Inman (1996)
find for a sample of 47 US states that only balance requirements enforced as constitu-
tional (not statutory) constraints by an independently elect ed (not politically appointed)
state supreme court have significant positive effects on a state’s general fund surplus.
Strauch (1998) shows that constitutional expenditure limits in the US induce a shift of
expenditures from the (constrained) current budget to the (unconstrained) investment
budget.
Dafflon and Rossi (1999) survey the accounting tricks governments used in the run-up
to the Euro. They find that the methodological rules of the European system of accounts
are weak and that numerous countries have used tricks to qualify for EMU membership.
Milesi-Ferretti and Moriyama (2004) find that in the run up to EMU membership reduc-
tions in government debt were accompanied by strong decumulations of government
assets. These authors argue that, in the run up to the Euro, the fiscal rules of Maastricht
led to significant fiscal operatio ns, which improved the official figures but had no effect on
the actual fiscal position of the government. The bottom line of this research is that fiscal
rules have an effect on the fiscal aggregates to which they refer. However, governments try
to compensate for the loss of flexibility due to the rule by shifting fiscal activities from
restricted to non-restricted instruments.
In this paper, we extend this line of research and test the model by Milesi-Ferretti
(2003). In particular, we document stock- flow adjustments in the European Union, which
are computed as the annual changes in debt levels minus the annual budget deficits. Posi-
tive stock-flow adjustments imply that the debt level increases by more than it should given
the deficit. While stock-flow adjustments are a common feature of public finances due to
accounting issues, they should generally not generate a systematic bias betw een the stock
of debt outstanding and the sum of all budget deficits over time. In many EU states, how-
ever, we find that stock-flow adjustments are persistent and that the difference between
debt stocks and accumulated deficits is large. We interpret this as a first indication of a
systematic strategic use of stock-flow adjustment. We then investigate the effect of the fis-
cal rules in Europe, more precisely of the excessive deficit procedure (EDP) and the stabil-
ity and growth pact (SGP). The SGP in particular puts a large weight on the deficit limit in
the EMU, since, in the European public debate, the loss of political reputation is signifi-
cant for countries breaching the deficit limit but not for countries breaching the debt limit.
As greater attention is paid to the deficit, we expect that governments try to shift budget
deficits (restricted) to off-budget deficits (non-restricted) in form of stock-flow adjust-
ments. We find that stock-flow adjustments are systematically related to deficits after
the fiscal rules became effective. Recorded deficits have been lowered by increasing
stock-flow adjustments. This effect is especially pronounced, when the fiscal rule is bind-
ing, i.e., when governments desire to run deficits in excess of the formal limits. In addition,
we confirm the prediction by Milesi-Ferretti (2003) that the use of creative accounting var-
ies over the business cycle.
The remainder of the paper is organized as follows: the next section presents accounting
identities, data and measurement issues and the amount of stock-flow adjustment in the
European Union. In Section 3, we develop our estimation strategy and present the evi-
dence on creative accounting in the EU. Section 4 concludes.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3261
2. Deficits and debt: stock-flow adjustments
2.1. Accounting identities
Standard textbooks in macroeconomics give Eq. (1) as the fundamental relationship
between deficits, D, and debt, B. In this definition, the deficit is calculated as the difference
between expenditure and revenue, where expenditure includes interest payments,
B
t
¼ B
t1
þ D
t
; ð1Þ
from this equation, the current debt level is equal to the accumulated past deficits plus the
initial debt level (Eq. (2)),
B
t
¼ B
tn
þ
X
n1
i¼0
D
ti
: ð2Þ
In practice, Eq. (1) does not always hold, if the deficit is defined as the difference between
budgetary expenditures and revenues. A residual can be computed according to:
B
t
B
t1
D
t
¼ SFA
t
: ð3Þ
This residual is called stock-flow adjustment, or debt-deficit adjustment. A positive stock-
flow adjustment means that the stock of government debt has increased betw een period t
and (t 1) by more than the budget deficit in period t indicates. The official definition
treats stock-flow adjustments as a statistical residual. As the European Commission states,
stock-flow adjustments ‘‘result primarily from financial operations, e.g., debt issuance pol-
icy to manage public debt, privatization receipts, impac t of exchange rate changes on for-
eign denominated debt. In general, these should tend to cancel out over time. However,
large and persistent stock-flow adjustments (especially if they always have a negative im-
pact on debt developments) should give cause for concern, as they may be the result of the
inappropriate recording of budgetary operations and can lead to large ex-post upward
revisions of deficit levels’’ (European Commission, DG for Economic and Financial Af-
fairs, 2003, p. 79).
4
2.2. Data and measurement issues
Deficit and debt figures very much depend on their precise defi nition and measurement
(e.g., Blejer and Cheasty, 1991). In this article we use data published in the AMECO data-
base, which is based on Eurostat data and serves as the basis of the EDP and the SGP.
Eurostat follows the ESA 95 accounti ng standard to measure deficits and debt. The data
refer to the general consolidated government sector, which includes the central, state and
local government and the social security sector.
5
The definition of debt under the EDP, on
which our data are based, slightly differs from ESA 95, as debt is recorded at face value in
the EDP and not at market value as in the ESA 95.
6
In general, the difference between def-
4
For recent evidence on upward revisions because of persistent stock-flow adjustments, see Balassone et al.
(2004).
5
For details on the precise definitions see Eurostat, 2002, p. 8–16.
6
Debt means total gross debt at nominal value outstanding at the end of the year and consolidated between and
within the sectors of general government (Eurostat, 2002, p. 190).
3262 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
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
affairs commissioner, has recently claimed that governments disguise the scale of their
budget deficits.
10
2.3. Debt vs. accumulated deficits: descriptive evidence
Persistent stock-flow adjustments can be a matter of concern (European Commission,
DG for Economic and Financial Affairs, 2003, p. 79). A natural test for the persistence of
stock-flow adjustments is to compare the debt level (column B of Table 1 ) with the accu-
mulated deficits as described in Eq. (2) , i.e., the sum of the debt level of 1980 and all bud-
get deficits between 1980 and 2003 as a percent of 2003 GDP (column C of Table 1), both
measured in percent of GDP of 2003. Calculating the difference of actual debt levels and
accumulated deficits in percent of GDP (B–C) shows that most EU countries have regu-
larly had positive stock-flow adjustments. Finland and Greece have 64% and 43% points
of GDP more debt than their budget data suggest, followed by Denmark (30), Luxem-
bourg (29), Germany (15), and Austria (14). The cases of Finland and Luxembourg are
noteworthy as the debt level should be negative if one added the deficits and surpluses.
In both countries, budget surpluses have thus been used in the last years to buy assets
instead of paying back deb t.
Off-budget debt accumulation in the form of stock-flow adjustments thus plays a con-
siderable role in most EU-15 countries, with substantial variations across countries.
11
Stock-flow adjustments constitute a significant part of the overall debt accumulation in
the member states of the EU. The (unweighted) annual average stock-flow adjustment
in the EU amou nts to 1.56% of GDP in the period 1981–2003. As Fig. 1 shows, it exceeds
3% of GDP in some years. Average stock-flow adjustments had a declining trend until
1996. This negative trend may reflect the persistent efforts of European governmen ts to
comply with the debt limit imposed by the Maastricht Treat. Since 1996 the average
SFA has risen again to more than 2% in 2001. A similar pattern can be seen for the aver-
age of three large EU economies, France, Germany and Italy. As argued by Milesi-Ferretti
and Moriyama (2004), EU governments thus reduced their gross debt by selling assets
rather than by improving the net-financial position of the government through lower def-
icits. This was a convenient way to fulfill the Maastricht criterion of falling debt levels for
the highly indebted countries.
Stock-flow adjustments of selected countries deserve particular attention. In Germany,
the debt level increased by more than 6% of GDP in addition to the deficit in 1995, when
the German federal government officia lly assumed the debt previously hidden in the
Treuhandanstalt, the holding company of former East German industries.
12
In Greece,
the stock-flow adjustment reached almost 19% in 1994, when the debt of the Greek gov-
ernment at the Bank of Greece was officially recorded as public deb t. Finland experienced
10
http://news.ft.com/cms/s/cd1192f0-35cd-11da-903d-00000e2511c8.html.
11
Also the US has a significantly higher debt level than given by the sum of deficits with a difference of 9% of
GDP in the period 1980–2003.
12
In fact, when the Treuhandanstalt was dissolved, the debt of 204 billion DM were carried forward to the
Erblastentilgungsfond. The German statistical office wanted to classify this as an increase of the debt and of the
deficit. Theo Waigel, the finance minister at the time, however objected and argued that this debt should not
impact on the deficit according to the Maastricht criteria. Eurostat accepted this view, which explains the large
stock-flow adjustment in this year (Mu
¨
nster, 1997).
3264 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
a stock-flow adjustment of 12% in 1992 related to the banking crisis it suffered in connec-
tion with the currency crisis of the Markka. The negative stock-flow adjustment of
Belgium in 1996 is noteworthy. It reflects a booking operation designed to show that Bel-
gium had a declining debt level and, therefore, qualified for EMU membership (Laughland
1 0 1 2 3 4
Percent of GDP
1980 1985 1990 1995 2000 2005
Year
Average SFA in the EU
Average SFA of France, Germany, and Italy
-
Fig. 1. Average stock-flow adjustments in percent of GDP. Source: Ameco database, authors’ calculation.
Table 1
Debt and accumulated deficits in percent of GDP
Country Debt, 1980 Debt, 2003 Sum of deficits Difference
A B C B–C
Austria 36 66 52 14
Belgium 79 103 100 3
Denmark 36 43 13 30
Finland 11 45 19 64
France 20 63 54 9
Germany 31 64 49 15
Greece 25 101 58 43
Ireland 75 33 25 8
Italy 58 106 99 7
Luxembourg 9 5 24 29
Netherlands 46 55 53 2
Portugal 32 58 53 5
Spain 17 51 47 4
Sweden 40 52 50 2
United Kingdom 53 40 39 1
Source: Ameco, own calculations; The accumulated absolute deficits were added to the initial debt level of 1980
(column A) for all countries, except Greece (1988), Luxembourg and Ireland (1990), Sweden (1993), and Spain
(1995) due to data constraints. This cumulative debt measure was divided by GDP of 2003.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3265
and Paul, 1997). In summary, we find significant evidence for persistent and systematic use
of stock-flow adjustments.
2.4. Stock-flow adjustments and creative accounting
Persistent, positive stock-flow adjustments allow governments to accumulate public
debt in excess of what is implied by the annual budget deficits. But they may also be
the result of net acquisitions of financial assets in times of budget surpluses. For example,
a governm ent using budget surpluses to accumulate reserves in pension insurance funds
would have long lasting positive stock-flow adjustments, without hiding away any deficits.
To test for this possibility, we check the correlation between the net acquisition of financial
assets and stock-flow adjustments, both in percent of GDP, for the period and countries
for which data were available, namely for the period 1996–2002, and Austria, Belgium,
Finland, France, Germany, Italy, Netherlands, Portugal, and Spain. The resulting coeffi-
cient is 0.21 and is not statistically significant.
13
But even if stock-flow adjustments reflect asset acquisitions, this could still be a way to
change official deficit figures. The data on asset acquisition do not reflect the evolution of
the value of these assets. It is possible, for example, that the asset acquisition is only a hid-
den subsidy, or capital injection into a (public) company. The public company could then
engage in standard public expenditure, driving down the value of its assets without any
impact on the gross debt level of the government, nor on net borrow ing. We therefore con-
clude that the stock-flow adjustments observed in Europe reflect to some extent at least
systematic creative accounting.
3. Fiscal rules and stock-flow adjustments
3.1. Approach
Milesi-Ferretti (2003) argues that fiscal rules can induce governments to engage in
‘‘bad’’ or even ‘‘ugly’’ creative accounting. To test this proposition, we investigate the rela-
tionship between deficits and stock-flow adjustments. The SGP is a fiscal rule with a par-
ticular focus on budg et deficits. It requires the deficit to stay below the 3% reference value
and to have a budget close to balance in the medium term. Following Milesi-Ferretti
(2003), the tendency to use stock-flow adjustments to keep reported deficits lower than
the actual increase in public debt should have increased since the inception of the SGP.
It should be particularly pronounced, when countries are close to breaching the 3% limit
and when the cost of reducing the deficit is high, i.e., in times of recessions.
More specifically, consider a government allocating expenditures and taxes optimally
over time as in Milesi-Ferretti (2003). Assume that the government has derived an optimal
change in government debt, D
t
, for period t. If the actual change in government debt devi-
ates from the optimal change, the government suffers a cost of K
1t
¼ a
t
ðB
t
B
t1
D
t
Þ
2
.
The parameter a
t
may vary over time, reflecting, e.g., different costs of deviating from
the optimal fiscal stance at different points of the business cycle. In the absence of any con-
13
The correlation coefficients have to be interpreted carefully as the data on assets refer to the non-consolidated
general government sector, while the deficit and debt data are consolidated across government sectors. The data
source for net asset accumulation is Annual National Financial Accounts (ANFA) dataset.
3266 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
straint on the government budget deficit, the actual change in government debt equals the
budget defi cit, D
t
, plus an exogenous, random stock-flow adjustment, e
t
, due to timing
effects etc., with E
t1
(e
t
) = 0, where E
t1
denotes the expected value based on information
available in period t1. Thus, B
t
B
t1
¼ D
t
þ e
t
¼ D
t
þ e
t
Note that, by assumption, the
budget deficit and the observed stock-flow adjustment are uncorrelated.
Assume now that there is a deficit limit, DL, applying to the observed budget deficit. If
the government violates the deficit limit, it suffers a cost increasing in the size of the vio-
lation, K
2t
= b
0
+ b
1
(D
t
DL)
2
for D
t
>DLandK
2t
= 0 otherwise. Finally, assume that
the government can use stock-flow adjustments strategically to increase government debt
deliberately by more than the budget deficit. Let the strategic component of stock-flow
adjustments be S
t
. Thus, the total stock-flow adjustment observed ex-post is SFA
t
=
S
t
+ e
t
. With a given probability p, the strategic use of stock-flow adjustments will become
known to the public. If that happens, the government suffers a reputational cost
K
3t
= c
0
+ c
1
S
t
for S
t
> 0, and K
3t
= 0 otherwise.
The government now has two instruments to implement the optimal change in govern-
ment debt, budget deficits and strategic stock-flow adjustments. Formally, it minimizes the
cost function K
t
= K
1t
= K
2t
+ K
3t
subject to the constraint B
t
B
t1
= D
t
+ S
t
+ e
t
and
D
t
< DL. As long as the deficit limit is not binding, the government will not use stock-flow
adjustments strategically, and choose D
t
¼ E
t1
ðB
t
B
t1
Þ¼D
t
. Assuming that the cost of
deviating from the optimal change in government debt is known when D
t
and S
t
are cho-
sen, we obtain the following solutions for the budget deficit and the strategic stock-flow
adjustment:
D
t
¼
a
t
ðD
t
S
t
Þþb
1
DL
b
1
þ a
t
; ð4Þ
S
t
¼
a
t
ðD
t
D
t
Þ
c
1
þ a
t
. ð5Þ
Thus, if the cost of deviating from the optimal change in government is small, a
2
t
< b c,
the change in government debt will be smaller than in the absence of the debt limit, and the
actual deficit lies between the unconstrained deficit and the deficit limit. Furthermore, if
the deficit limit is binding, the actual deficit and the strategic part of the stock-flow adjust-
ment are negatively correlated. That is, the larger the strategic stock-flow adjustment, the
smaller the observed budget deficit. This correl ation increases, when the economic cost of
deviating from the optimal change in government debt becomes large. Subsequently, we
focus on this correlation to test for the strategic use of stock-flow adjustments to hide gov-
ernment deficits under EMU.
Based on these considerations, we do not expect a systematic relationship between
stock-flow adjustments and the deficit before 1998, when the SGP became binding. After
1998, however, governments may have used stock-flow adjustments actively to control the
deficit. SFA becomes a policy variable, influencing the deficit level. Thus, we expect a
significant negative relation between stock-flow adjustments and the budg et deficit for
the period 1998–2003, when EU countries had to comply with the SGP. In a first step
we calculate the correlation coefficients between stock-flow adjustments and deficits in
the two periods for all EU 15 countries. In the first period (1980–1997), the correlation
is 0.03 and insignificant, in the second period (1998–2003) it is 0.53 and statistically
significant.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3267
This simple correlation analysis allows neither for country-specific effects nor for auto-
correlation in the variables caused by business cycle fluctuations. We therefore employ the
following more elaborate panel econometric approach. From identity (3), we know that
the change of the total debt level in percent of GDP in country i at time
t ðDb
it
¼
B
it
B
i;t1
Y
it
Þ is the sum of stock-flow adjustment in percent of GDP (sfa
it
) and the
deficit in percent of GDP (d
it
), i.e., Db
it
= sfa
it
+ d
it
. Estimating the following equation:
Db
it
¼ a
0
þ a
1
sfa
it
þ e
it
; ð6Þ
gives a
1
as:
a
1
¼
covðDb
it
; sfa
it
Þ
varðsfa
it
Þ
¼
covðsfa
it
þ d
it;
sfa
it
Þ
varðsfa
it
Þ
¼
varðsfa
it
Þþcovðd
it
; sfa
it
Þ
varðsfa
it
Þ
¼ 1 þ
covðd
it
; sfa
it
Þ
varðsfa
it
Þ
: ð7Þ
If a
1
= 1, we know that the covariance between deficits and stock-flow adjustments is zero.
A coefficient smaller (larger) one implies a negative (positive) covariance between sfa and
d. The following regression allows to estimate the impact of the fiscal rule,
Db
it
¼ a
0
þ a
1
sfa
it
þ a
2
T
t
þ a
3
sfa
it
T
t
þ l
i
þ e
it
; ð8Þ
where T
t
is a dummy that takes a value of 1 for the years 1998–2003 and zero otherwise.
The coefficient a
2
measures the effect of the dummy (the fiscal rule) on the level of the
change in debt levels. a
3
Measures the effect of the fiscal rule on the relationship between
sfa and the change in debt levels. The coefficient a
3
gives the impact of the fiscal rule on the
covariance between the deficit and sfa. Given that our hypothesis of no relation betw een d
and sfa before the introduction of the rule holds true, i.e., a
1
= 1, the coefficient a
3
then
directly measures the covariance between deficits and stock-flow adjustments after 1997.
A negative coefficient a
3
implies, that the covariance between deficits and stock-flow
adjustments became negative in the second period. An increase in the stock-flow adjust-
ment (sfa
it
) would therefore result in a lower deficit.
In order to separate the effects of structural from cyclically adjusted deficits, we specify
an alternative regression model:
Db
it
¼ b
0
þ b
1
d
it
þ b
2
T
t
þ b
3
d
it
T
t
þ l
i
þ e
it
; ð9Þ
where T
t
is again a dummy that takes a value of 1 for the years 1998–2003 and zero for the
years before. The effect of the fiscal rules (the treatment effect) can then be calculated
accordingly. A negative coefficient b
3
implies, that an increase in the deficits (d
it
) results
in a lower stock-flow adjustment as a consequence of the introduction of the fiscal rule.
The coefficients b
3
and a
3
should be of the same sign as they reflect the same covariance.
To capture the effect of the structural and the cyclical part of the deficit, we augment Eq.
(9) and estimate,
Db
it
¼ b
0
þ b
1
T
t
þ b
2
d
s
it
þ b
3
d
s
it
T
t
þ b
4
d
c
it
þ b
5
d
c
it
T
t
þ l
i
þ e
it
; ð10Þ
where d
s
specifies the cyclically adjusted (structural) deficit, whereas d
c
is the cyclical part
of the deficit. We expect the coefficient b
3
to be of similar size as the coefficient a
3
since the
largest part of the deficit is structural. For b
5
the model by Milesi-Ferretti (2003) predicts a
larger coefficient, i.e., we expect creative accounting to be used strongly with the business
cycle.
3268 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
To test whether creative accounting is most prevalent, when the rule is binding, we fur-
ther augment the approach. We separate empirically the effect of the introduction of the
rule captured by the time dummy from the effect the rule has on governments, whose pol-
icy objective is to spend more than 3% of GDP in excess of their revenu es. Since in this
case, we expect coun tries to employ SFA systematically to lower the deficit, we cannot
identify the policy objective by looking at the deficit. Instead, we identify the intention
of the government to br each the 3% limit by
DB
t
Y
t
P
D
t
Y
t
¼ 3% if the fiscal rule is in place.
If the rule applies only to those countries, which breach the 3% criterion, then only those
countries intending to increase their debt level by more than 3% should engage in creative
accounting. Countries below that limit should show no particular attempt to engage in cre-
ative accounting.
14
This means that the correlation between stock-flow adjustments and
deficits should be negative when the rules are in place (second period) and the change
of the debt level is above 3%. It should be zero, when the change of the expected debt level
is below 3%.
The following model is estimated to test this hypothesis,
Db
it
¼ c
0
þ c
1
sfa
it
þ c
2
T
t
þ c
3
T
t
sfa
it
þ c
4
R
e
it
þ c
5
T
t
R
e
it
þ c
6
R
e
it
sfa
it
þ c
7
T
t
R
e
it
sfa
it
þ l
i
þ e
it
; ð11Þ
where R
e
it
¼ 1ifE(Db
it
jI
t1
) > 3 is a dummy taking the value of 1 if the expected change in
debt is larger than 3% of GDP. In this view, governments will engage in creative account-
ing if they expect their newl y accumulated debt to be above 3%. We therefore expect c
7
to
be significantly negative, implying a strong negative correlation between sfa and deficits,
when the rules are in place (second period) and binding (expected debt level change larger
3). The effect of the introduction of the rule, given by c
3
, should become insignificant, if we
assume that the rule is not binding when countries have a deficit below 3%. Finally, as
given by the accounting identity, we expect sfa to contribute as above one to one to an
increase of the debt level, i.e., c
1
= 1 and c
6
=0.
An obvious problem of these approaches is the simultaneous equation bias, which ren-
ders the least square estimator inconsistent (Gujarati, 1995, pp. 642; Greene, 2000, pp.
652). We therefore ran two stage least square instrumental variable estimators and instru-
mented with the lag of the variables. To address the endogeneity of R, we instrumented the
realized R
it
with the appropriate lags. However, in this approach we cannot take account
of serial correlation. Serial correlation can be expected as the change in the debt level Db
depends on the business cycle.
We theref ore specify a dynamic panel model with the lagged dependent variable
included as a regressor. We use the dynamic panel estimator by Arellano and Bond
(1991), restricting the number of lagged levels to five in the instrument set.
15
To address
the simultaneous equation bias and endogeneity bias, we explicitly allow sfa, T Æ sfa,
and for the extended approach in addition R Æ sfa, R Æ T Æ sfa, R,andR Æ T to be endoge-
nous variables. This means that all possible lags until t 1 of these variables in levels
are included as instruments for these endogenous variables.
14
In fact, if
DB
t
Y
t
< 3 and SFA > 0, we can be sure, that the government meets the criteria set by the pact.
15
An extension of the instrument set to all possible lags did not change any of our results. A reduction of lags
also has robust results.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3269
3.2. The effect of fiscal rules
The basic empirical results are shown in Table 2. Stock-flow adjustments, as the
accounting identity suggests, contribute to the change in the debt level with a coefficient
close to one, the 95% confidence interval for regression 1 is [0.819, 0.992]. Increasing the
stock-flow adjustment per GDP by one percentage point results in roughly one additional
percentage point debt level per GDP. However, this changes in the second period, when an
increase in the stock-flow adjustment results in a
1
+ a
3
additional debt, and stock-flow
adjustments do not translate into higher debt on a one to one basis. As the coefficient
a
1
is statistically not different from 1, the estimated coefficient a
3
represents the covariance
between stock-flow adjustments and the deficit in the second period, which we find to be
significantly negative. In regression (1) of Table 2, an increase of sfa by one percentage
point results in a 0.25 percentage point lowering of the deficit. This suggests that
stock-flow adjustments have become a policy variable to control the deficit in the time per-
iod when the fiscal rule was in place. In the earlier period, the regression results do not
imply any correlation between stock-flow adjustments and deficits. Thus, our results indi-
cate that the introduction of the fiscal rule led governments to systematically use stock-
flow adjustments to lower deficits.
16
To check the robustness of our results, we omit a number of countries and observa-
tions. Finland and Sweden are dropped, as Finland had positive stock-flow adjustment
because of budget surpluses invested into assets, and so did Sweden in some years. We also
drop Finland, Sweden, and Luxembourg, as all three countries had positive stock-flow
Table 2
Measuring the impact of fiscal rules
Db
it
12 3 4 5 6 7
sfa 0.91 0.95 0.97 0.94 0.88 0.89 0.95
0.04 0.04 0.04 0.05 0.05 0.05 0.05
T 1.55 1.11 1.31 1.16 0.88 1.84 0.91
0.33 0.31 0.32 0.31 0.37 0.37 0.42
T · sfa 0.25 0.40 0.38 0.33 0.32 0.18 0.36
0.08 0.09 0.10 0.10 0.09 0.08 0.08
Cons 0.04 0.02 0.01 0.00 0.00 0.03 0.14
0.03 0.03 0.03 0.03 0.03 0.03 0.05
LDV 0.51 0.45 0.44 0.46 0.53 0.50 0.41
0.03 0.03 0.03 0.03 0.03 0.03 0.04
Obs 263 233 221 220 212 221 183
Sargan p 0.88 0.98 0.99 1.00 1.00 1.00 0.99
Autocorr 2, p 0.50 0.86 0.80 0.75 0.75 0.43 0.87
Omitted SE, FI SE, FI, LU SE, FI, GR SE, DK, UK DE,FR <1991
Note: Dependent variable: change in the debt relative to GDP. T = 1 if year > 1997. LDV refers to the lagged
dependent variable. Last line refers to which observations were omitted. Standard errors are reported below the
coefficients. Method: Arellano bond dynamic GMM panel estimator.
16
It is possible that strong negative shocks to the budget induce the government to increase deficits and stock-
flow adjustments, thereby causing a positive correlation. Our result is strengthened, since we find the negative
relationship to prevail. The systematic use of creative accounting thus outweighs possible shocks (e.g., resulting
from control errors) affecting the deficit and stock-flow adjustments in the same direction.
3270 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
adjustments because of asset purchases (regression 2). Also some of the Greek figures
might be distorted in the early to mid-nineties, and we also know that the data in the later
years were wrongly reported (regression 3). Then we also drop the three non-Euro coun-
tries, which are officially subject to the fiscal rules, however, without being subject to fines
in case of non-compliance (regression 4). In a further regression, we drop Germany and
France, as it might be difficult to enforce sanctio ns against them. They might therefore
be less constrained by the fiscal rule (regression 5). We also exclude the observations from
the 1980s, as in this period, the emergence of any set of rules was not discussed (regression
6). None of these control regressions changes our results.
17
The results based on regression Eq. (9) confirm this finding and are given in Appendix,
Table A.1. In the first period, there is no systematic relationship between stock-flow
adjustment and deficits, while in the second period a negative co-variance emerges.
18
An
increase in the deficit by one percentage point is associated with a lowering of the
stock-flow adjustments by 0.32 percentage point. This figure is also robust to changes
in the sample.
We then separate the effect of the cyclically adjusted deficit and the cyclical component
of the deficit (Table 3). We use the two official measures of cyclically adjusted balances
provided by the European Commission. The first is based on the output gap in a structural
model, the second is based on an HP-filtered trend.
19
The estimation results based on
potential output are presented in the left part of the table, while trend output results
are given on the right side of the table. In the regression, we include the cyclically adjusted
deficit (CAD) and the cyclical part of the deficit (CD). Again the coefficient for the first
period is close to 1 as we expect for the structural deficit and for the cyclical deficit. Thus,
in the first period we do not find a signifi cant correlation between deficits an d stock-flow
adjustments. For the second period, however, there is a clear negati ve correlation between
the structural deficit and stock-flow adjustments for both calculation methods similar in
magnitude to the previously estimated coefficient.
20
The cyclical component of the deficit
and stock-flow adjustments in the second period are very strongly negatively correlated. In
fact, an increase in the cyclical deficit in the second period is almost completely offset by
reductions in stock-flow ad justments, indicating that stock-flow adjustments are used to
weaken the impact of the cycle on the deficit.
Table 3 also provides robustness checks for the impact of cyclical and structural deficits
on the use of stock-flow adjustments. Similar to the other robustness checks, we drop var-
ious countries from the sample. Finland, Luxembourg and Sweden are dropped because of
their surpluses, Greec e is dropped as data quality is problematic, Denmark, Sweden and
the UK are dropped as they do not belong to the Eurozone, and finally Germany and
France are dropped as sanctions and warning letters are difficult to enforce against them.
The estimation results confirm the previous results. For the second period, there is a strong
negative correlation between the cyclical part of the deficit and stock-flow adjustments for
17
With the robustness check, we show that the significance of our regression coefficients does not depend on the
choice of countries and methods. It is not possible, however, to compare the magnitude of the regression
coefficients, since the standard errors are too large.
18
The 95% confidence interval for b
1
is [0.705, 0.993]. The H
0
that
b
3
1PLDV
¼ 1 cannot be rejected with a p-value
of 0.71. The coefficient b
3
for the interacted term thus again measures the covariance.
19
For details on the de-trending methodologies of the EU, see (European Commission, 2004, p. 79).
20
In most EU countries, the structural deficit represents the largest part of the total deficit.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3271
Table 3
Measuring the impact of fiscal rules on the cyclical component of the deficit
Db
it
Db
CAD1 0.82 0.89 0.81 0.78 0.75 CAD2 0.80 0.91 0.85 0.81 0.79
0.07 0.09 0.07 0.08 0.08 0.08 0.09 0.07 0.08 0.08
T · CAD1 0.20 0.16 0.23 0.24 0.23 T · CAD2 0.21 0.15 0.21 0.23 0.20
0.12 0.17 0.11 0.13 0.14 0.12 0.17 0.11 0.14 0.14
CD1 1.01 1.41 1.18 1.03 1.28 CD2 1.15 1.34 1.03 0.88 1.14
0.13 0.19 0.12 0.15 0.15 0.13 0.19 0.12 0.14 0.14
T · CD1 0.83 0.91 0.87 0.64 1.05 T · CD2 0.88 0.89 0.81 0.53 1.03
0.25 0.31 0.22 0.27 0.27 0.33 0.24 0.22 0.29 0.29
T 1.44 1.53 1.63 1.30 1.79 T 1.42 1.59 1.67 1.32 1.80
0.49 0.57 0.43 0.52 0.54 0.48 0.57 0.43 0.54 0.54
Cons 0.19 0.16 0.20 0.18 0.25 Cons 0.18 0.18 0.21 0.18 0.26
0.03 0.04 0.03 0.04 0.04 0.03 0.04 0.03 0.04 0.04
LDV 0.17 0.15 0.15 0.16 0.13 LDV 0.17 0.14 0.15 0.17 0.13
0.05 0.06 0.05 0.06 0.06 0.05 0.06 0.05 0.06 0.06
Obs 263 221 250 212 221 263 221 250 212 221
Sargan 1 1 0.79 0.99 0.99 1 1 0.78 0.99 0.99
Autocorr 2, p 0.59 0.31 0.94 0.65 0.67 0.59 0.34 0.92 0.66 0.66
Omitted FI, LU, SW GR DK, SW, UK DE, FR FI, LU, SW GR DK, SW, UK DE, FR
Note: Dependent variable: change in the debt relative to GDP. T = 1 if year > 1997. LDV refers to the lagged dependent variable. CAD1 = cyclically adj. deficit,
CD1 = cyclical component both based on potential output. CAD2 = cyclically adj. deficit, CD2 = cyclical component both based on HP filtered output trend.
Standard errors are reported below the coefficients. Method: Arellano bond dynamic GMM panel estimator. Deficit, and interaction term specified as endogenous
variables.
3272 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
both calculation methods. Any change in the cyclical deficit is almost completely offset by
a corresp onding change of sfa.
To show the robustness of our results to changes in the methodology, we also report the
results of a non-dynamic model, neglecting the simultaneous equation bias (Tables A.2–
A.4). OLS and fixed effect regressions yielded similar results.
21
To control for heterosced-
asticity, we also run generalized least squares. However, Monte-Carlo simulations by Beck
and Katz (1995) show that GLS provides over-optimistic standard errors in panels of our
size, therefore, we present the panel corrected standard error results in the Tables. Overall,
the model fits the data reasonably well. The size of the coefficients is slightly larger than in
the Arellano bond GMM estimator, as expected. In the entire investigated period, the
average debt acc umulation per year given stock-flow adjustment s of 0% of GDP was
roughly 4.5% of GDP, in the second period it went however down by almost 3% points.
In this sense the ‘‘treatment’’, the introduction of fiscal rules is successfully reducing debt
accumulation, especially the recorded deficit. a
3
remains statistically significant and nega-
tive. In the second period, an increase in the deficit by 1% point resulted in roughly 0.3
lower deficits. The coefficients for the cyclical and structural component of the deficit are
similar to the benchmark regressions. Especially the cyclical part of the deficit is offset by
an equall y strong movement of stock-flow adjustments.
The regression coefficients robustly indicate that governments have used stock-flow
adjustments systematically to hide deficits since the fiscal rules are introduced in Europe.
This is especially relevant for the cyclical component of the deficit.
3.3. The effect of binding fiscal rules
Our regression analysis so far shows that after the introduction of the fiscal rules, stock-
flow adjustments have become a policy instrument to control the evolution of the deficit.
In this section we want to extent this point and separate empirically the effect of the intro-
duction of the rule from the effect the rule has on governments, when it actually constrains
their intentions.
As a first test, whether the sfa increases when the constraint of the SGP becomes bind-
ing, we compare the average sfa in the group of observations with Db > 3 before and after
the SGP was in place with the average of sfa for the other group (Db <3)sfa increased
more in the first group than in the second group (0.36 = (2.99 2.19) (0.94 0.5)). This
indicates, that the use of sfa as a way to incur new debt has especially increased in the
group of countries, for which the rule on deficits is binding.
The econometric results aimed at testing whether creative accounting increases in
importance, when the fiscal rules become binding, are presented in Table 4. We present
panel fixed effect regressions and dynamic Arellano bond estimation results.
22
The first, somewhat surprising result concerns the coefficient on sfa and the deficit. It is
now only 0.5 and 0.43, respectively, for the whole sample. However, we also find a signif-
icant interaction term R. sfa of 0.38 and 0.35, wher e we expected a zero coefficient.
This means that cou ntries with a lower change in debt show a negative correlation between
deficits and sfa, while for debt level changes above 3% we find a coefficient close to the
21
The F-test on the fixed effects indicates that country specific effects are significant.
22
In the Arellano bond estimation procedure we addressed the endogeneity issues discussed above.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3273
previously estimated 1 implying no correlation between sfa and deficits. This effect is dri-
ven by budget surpluses as we conclude from a look at the scatterplots. Countries with
budget surpluses in general do not use these surpluses to reduce their debt levels but
instead have a tendency to buy assets. This observation is in line with our descriptive evi-
dence of Section 2.3, where the largest discrepancy between debt and accumulated deficits
are observed for Finland, a country with significant surpluses.
We, therefore, estimate the proposed model for only those observations, where the def-
icit is positive (i.e., we dropped obs ervations of budget surpluses in columns 4 and 5 of
Table 4). Now, the coefficient on sfa has the expecte d value, i.e., 1, stock-flow adjustment
contribute to increases of the debt level on a one to one basis, no negative correlation
between sfa and deficits exists in general.
In addition, the effect of sfa on the change in debt is the same for R = 1 and R = 0. The
coefficient on sfa interacted with the dummy for the second period is insignificant. This
means, that no general negative correlation between sfa and deficits can be observed in
the second period.
In contrast, we find a strongly significant and negative effect for the coefficient on sfa
interacted with the dummy for the period when the SGP was in place and a dummy for
those observations, where countries intend to increase their debt levels by more than
3%. This means, that for those observations, for which the rule is expected to become
Table 4
Measuring the impact of binding fiscal rules
Db
it
Fixed effect Arellano bond Fixed effect Arellano bond
sfa 0.40 0.50 1.06 0.95
0.12 0.08 0.21 0.14
R · sfa 0.54 0.38 0.09 0.03
0.13 0.09 0.22 0.14
T · sfa 0.12 0.03 0.23 0.11
0.15 0.10 0.42 0.26
T · R · sfa 1.14 0.51 0.89 0.62
0.28 0.18 0.49 0.29
R 3.67 2.24 2.83 1.46
0.39 0.27 0.45 0.30
T 1.56 0.63 1.28 0.24
0.39 0.31 0.54 0.40
T · R 0.95 0.22 0.87 0.24
0.96 0.61 1.02 0.63
Cons 2.03 0.02 3.31 0.06
0.28 0.02 0.38 0.03
LDV 0.41 0.37
0.03 0.03
Obs 293 263 225 180
R
2
0.74 0.77
Sargan 0.32 0.95
Autocorr 2, p 0.79 0.68
Omitted observations None None Budget surplus Budget surplus
Variable: change in the debt relative to GDP. T = 1 if year > 1997. R =1ifDb > 3, LDV refers to the lagged
dependent variable. Standard errors are reported below the coefficients. Methods: panel fixed effect FE and
Arellano bond dynamic GMM panel estimator AB.
3274 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
binding, a negative regression coefficient for sfa of 0.62 is estimated, implying a negative
correlation between sfa and deficits in case of a binding fiscal rule.
Again, we check the robustness of the estimation results by dropping a variety of coun-
tries in the estimation. The results are presented in Table A.5 in Appendix. The results
confirm the result. The estimated coefficient on the simple interaction term for the second
period becomes insignificant. This means, that the imposition of the SGP does not result in
a significant general use of sfa to improve the budget. We find a significantly negative coef-
ficient for the interaction term R · T · sfa. This means that those governments that intend
to run deficits beyond the 3% limit heavily resort to stock-flow adjustments instead of the
deficit to comply with the legal limits.
23
The extended estimation gives a more de tailed view on the empirical effect of fiscal
rules.
24
The results show that any intended increase of the debt level beyond 3% under
the SGP regime was almost exclusively done by increasing stock-flow adjustments instead
of officially published deficits. Stock flow adjustments were, however, not used as a general
mean to reduce the deficit to comply with the pact’s provision to balance the budget in the
medium term. These results are in line with evidence taken from political debates. The
debate among policy makers almost exclusively focussed on the ‘‘magic’’ 3% threshold.
At this threshold, we also find creative accounting to become relevant. The robustness
tests further confirm that governments in general heavily resort to creative accounting
in the EU, when their desired fiscal stance does not comply with the binding fiscal rule.
4. Conclusions
Fiscal rules are introduced to constrain governments. EU countries have adopted a set
of rules to constrain deficits with the goal to keep debt levels sustainable. We have given
evidence that deficits in Europe provide only limited informat ion on the evolution of debt
levels in the past.
We then have tested the hypothesis that governments try to circumvent fiscal rules by
means of creative accounting. Our empirical evidence indicates that the introduction of the
stability and growth pact and the excessive deficit procedure in Europe have resulted in
creative accounting. While stock-flow adjustments have significantly contributed to debt
accumulation in the last 20 years in Europe, only after the introduction of the fiscal frame-
work in Europe a systematic relationship between these adjustments and deficits can be
detected. Furthermore, this use of creative accounting is especially responsive to cyclical
parts of the deficit, where the associated costs of the non-state-contingent fiscal rule are
high. The use of creative accounting is especially measurable, when the fiscal rules become
binding. Our results confirm the vulnerability of fiscal rules due to creative accounting.
5. Acknowledgments
We thank the anonymous referees, Jo
¨
rg Breitung, Kirsten Heppke-Falk, Heinz Herr-
mann, Jana Kremer, Wolfgang Lemke, Rolf Strauch, and the fiscal policy departments
23
The same results are obtained when using deficits as the explanatory variable.
24
A separate estimation of the cyclical effects for binding vs. non-binding fiscal rules was not possible because
the relatively short sample period yields only few observations.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3275
Table A.2
Robustness check: measuring the impact of fiscal rules with different methodologies
Db
it
OLS FE PCSE Db
it
OLS FE PCSE PCSE PCSE
sfa 0.96 1.07 0.98 Deficit 0.98 1.04 1.01
0.09 0.07 0.05 0.05 0.06 0.08
T 3.56 3.63 2.37 T 0.4 0.16 0.2 0.53 0.52
0.54 0.38 0.78 0.4 0.39 0.57 0.61 0.59
T · sfa 0.53 0.41 0.32 T · deficit 0.46 0.46 0.47
0.19 0.13 0.11 0.12 0.11 0.13
Cons 4.34 4.15 4.13 Cons 1.73 1.48 1.07 1.11 1.24
0.3 0.21 0.93 0.28 0.29 0.66 0.52 0.53
CAB 1 0.95
0.069 0.07
T · CAB 0.34 0.34
0.15 0.15
CD 1.21 1.39
0.17 0.17
T · CD 0.98 1.12
0.36 0.34
R
2
0.43 0.61 0.71 R
2
0.69 0.67 0.71 0.79 0.79
Obs 293 293 293 Obs 293 293 293 293 293
Country dummies No No Yes Country dummies No No Yes Yes Yes
Output Trend Potential
Note: Dependent variable: change in the debt relative to GDP. T = 1 if year > 1997. In the panel corrected
standard error (PCSE) regressions, we took account of possible autocorrelation in the error term. FE refers to
standard fixed effect regressions.
Table A.1
Measuring the impact of fiscal rules
Db
it
12 3 4 5 6 7
Deficit 0.85 0.88 0.91 0.91 0.81 0.84 0.88
0.07 0.08 0.09 0.08 0.08 0.08 0.10
T 1.81 1.77 1.87 1.91 1.50 2.14 1.38
0.46 0.48 0.52 0.41 0.49 0.53 0.65
T · deficit 0.32 0.27 0.23 0.27 0.28 0.31 0.36
0.10 0.12 0.15 0.11 0.11 0.12 0.12
Cons 0.19 0.16 0.17 0.16 0.17 0.23 0.18
0.03 0.04 0.04 0.03 0.04 0.04 0.08
LDV 0.17 0.20 0.18 0.22 0.18 0.17 0.08
0.05 0.06 0.06 0.05 0.06 0.06 0.07
Obs 263 233 221 220 212 221 183
Sargan p 1 1.00 1.00 1.00 1.00 1.00 1.00
Autocorr 2, p 0.76 0.34 0.34 0.44 0.68 0.83 0.80
Omitted SE, FI SE, FI, LU SE, FI, GR SE, DK, UK DE, FR <1991
Note: Dependent variable: change in the debt relative to GDP. T = 1 if year > 1997. LDV refers to the lagged
dependent variable. Last line refers to which observations were omitted. Standard errors are reported below the
coefficients. Method: Arellano bond dynamic GMM panel estimator.
3276 J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279
of the ECB and the Deutsche Bundesbank for many, very helpful discussions. Research
assistance by Sascha Heise is gratefully acknowledged. Remaining errors are ours. The
opinions expressed in this paper do not necessarily reflect the views of the Deutsche Bun-
desbank or its staff.
Appendix
See Tables A.1–A.5.
Table A.4
Robustness check: measuring the impact of fiscal rules
Db
it
PCSE PCSE PCSE PCSE PCSE PCSE
Deficit 1.11 1.14 1.18 0.97 1 1.06
0.09 0.10 0.08 0.08 0.08 0.11
T 0.11 0.23 0.32 0.36 0.23 0.61
0.53 0.66 0.51 0.51 0.68 0.6
T · deficit 0.44 0.38 0.49 0.41 0.48 0.5
0.12 0.17 0.11 0.13 0.15 0.16
Cons 0.64 0.46 0.35 1.24 1.11 0.46
0.64 0.69 0.63 0.63 0.73 0.61
R
2
0.75 0.75 0.75 0.74 0.71 0.74
Obs 259 245 244 236 247 189
Omitted SE, FI SE, FI, LU SE, FI, GR DE, FR SE, DK, UK <1990
Note: Dependent variable: change in the debt relative to GDP. T = 1 if year > 1997. All regressions include
country dummies. In the panel corrected standard error (PCSE) regressions we took account of possible auto-
correlation in the error term.
Table A.3
Robustness check: measuring the impact of fiscal rules
Db
it
PCSE PCSE PCSE PCSE PCSE PCSE
sfa 1.00 1.02 1.09 0.94 0.98 1.03
0.06 0.06 0.07 0.06 0.06 0.06
T 2.31 2.56 2.13 2.18 2.94 2.82
0.69 0.70 0.64 0.69 0.82 0.79
T · sfa 0.39 0.39 0.41 0.33 0.3 0.44
0.12 0.14 0.14 0.13 0.12 0.11
Cons 4.08 4.25 3.92 4.03 4.45 4.35
0.84 0.85 0.84 0.87 0.88 0.78
R
2
0.75 0.76 0.71 0.71 0.72 0.77
Obs 259 245 244 236 247 189
Country dummies Yes Yes Yes Yes Yes Yes
Omitted SE, FI SE, FI, LU SE, FI, GR DE, FR SE, DK, UK <1990
Note: Dependent variable: change in the debt relative to GDP. T = 1 if year > 1997. In the panel corrected
standard error (PCSE) regressions we took account of possible autocorrelation in the error term.
J. von Hagen, G.B. Wolff / Journal of Banking & Finance 30 (2006) 3259–3279 3277
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