The low interest rate environment – Causes, effects and a way out

IW policy paper · 10/2014
The low interest rate environment
Causes, effects and a way out
Author: Jürgen Matthes
matthes@iwkoeln.de
Phone: 0221 4981 754

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Summary1
The very expansive and unconventional monetary policy of the ECB reduced the
tensions of the Euro debt crisis at the price of persistently very low interest rates.
While the ECB was right to act at the peak of the crisis, the risks of the low-interest
rate environment become increasingly obvious. Private savings suffer from very low
yields, which is particularly detrimental for long-term retirement savings. Moreover,
financial stability risks could arise, as ultra-low interest rates can cause a search for
yield among investors. Banks and life insurance companies are exposed to reduced
interest profits respectively lower yields. While life insurance companies can cope
with a shorter period of low interest rates, a longer period, however, poses
challenges, as contracts with guaranteed interest rates have to be served.
Therefore, it is a positive sign that the economic conditions for an interest rate
turnaround have improved significantly since 2012 and are expected to improve
further. Economic activity is clearly on an upward trend which is expected to continue
despite current uncertainties. Significant structural reforms have been implemented
in most stressed Euro countries which will most likely increase growth potentials
soon (as already appears to be the case in Spain). Due to a stronger economy fears
of deflation should only be a temporary phenomenon. Stress indicators and
fundamentals in the banking sector have also improved on the back of (late but
eventually decisive) policy measures and will continue to do so in the course of the
ECB’s pending stress test. Public and private indebtedness should be manageable in
an environment where a sustainable moderate economic growth and more normal
inflation are present. These are the conditions which characterize the baseline
scenario assumed here.
Despite remaining uncertainties, e.g. geopolitical risks or a lack of reform
implementation, in our baseline scenario an interest rate turnaround appears
possible in the second half of 2015. As an exit from the long low interest rate period
poses significant challenges to financial markets, the ECB should institute a smooth
interest rate turnaround and communicate its preconditions very actively. More
concretely, the ECB should raise interest rates initially only in very small monthly
steps to allow financial actors to better adapt to the changing interest rate
environment.
1 This IW policy paper is based on a study of the Institut der deutschen Wirtschaft Köln
(Demary/Matthes, 2014) for the Gesamtverband der deutschen Versicherungswirtschaft (GDV). Both
reflect the status of May 2014.

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1. The low interest rate environment and its background
1.1 Global perspective
Unusually low interest rates have been a widespread phenomenon in developed
countries for several years now. After the financial crisis, central banks in the US, UK
and the Eurozone lowered short-term policy rates to historically low levels. The aim
was to provide anti-cyclical impulses against deep recessions and to prop up the
banking sector which suffered from a deep crisis in the aftermath of the Lehman
Brothers’ collapse. The Bank of Japan had lowered interest rates long before as a
reaction to the continuous sluggishness of the Japanese economy and deflationary
tendencies.
Long-term interest rates also dropped due to weak economic growth perspectives,
falling inflation expectations and high public and private debt. While there had
already been a downward trend since the end of the 1990s (as inflation was
considered increasingly under control), after 2008 interest rates sank to levels not
seen for decades (Figure 1-1).
Figure 1-1: Long-term interest rates in major OECD countries
in per cent
Source: OECD
The run-up to the financial crisis (which was triggered in the US real estate sector)
was also characterized by rather low central bank policy rates. Inflation targeting was
the prevailing paradigm for many central banks at that time so that financial stability
risks were not (or only hardly) targeted (Bernanke/Mihov, 1997; Bayoumi et al.,
2014). Thus, an overly expansive monetary policy in the US contributed to the build-

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up of the imbalances in the financial sector which eventually led to the financial crisis
after 2008.
1.2 Multiple crises in the Eurozone
In Europe, the Euro debt crisis came on top of the global financial crisis. More
specifically, multiple crises reinforced each other (Schema 1-1):
- The financial crisis and the Great Recession that followed significantly weakened
banks in many Euro-area countries and also involved a temporary breakdown of
the interbank markets. As governments had to finance bank bailouts and fiscal
stimulus programmes, public debt increased significantly.
- In the course of the euro debt crisis, doubts about fiscal sustainability worsened
the risk assessment of several Euro countries. A fatal nexus between banks and
governments emerged, because banks in these countries held government bonds
(that lost value). At the same time, these banks were subject to the weakened
ability of their respective governments for a bailout.
- In several southern Eurozone countries, a current account crisis flared up after
large foreign debt had accumulated in the course of high and chronic current
account deficits. Panic among investors even culminated in expectations that
certain stressed countries could exit the Eurozone. The resulting capital outflows
from these countries led to fragmentation of the financial market in the Eurozone.
On top of this, highly indebted corporations and households in the stressed
countries suffered from credit restrictions, as their banking sector was in a
process of balance sheet restructuring. As a result, the transmission of the
European Central Bank’s (ECB) monetary policy was disturbed.
Schema 1-1: Multiple crises and reactions of the ECB
Types of crisis Challenges for the ECB Reactions of the EZB
Global financial crisis
Macroeconomic crisis
Banking and sovereign debt
crises
Current account crisis
Deep double-dip-recession
Bank-Sovereign-Nexus
Fragmentation of the
eurozone financial market
o Collapse of the interbank
market
o Transmission of monetary
policy impeded
Credit crunch
Euro-exit expectations
Very low interest rates
Full allotment
Lower collateral standards
for ECB refinancing credits
Emergency Liquidity
Assistance
Long-term refinancing
operations (LTROs)
Securities Markets
Programme (SMP)
Outright Monetary
Transactions (OMT)
Source: Institut der deutschen Wirtschaft Köln

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The culmination of these extraordinary events forced the ECB to lower its policy rates
in several steps to all-time lows. Moreover, it had to resort to a variety of
unconventional monetary policy instruments:
- Provision of liquidity to banks: Since the global financial crisis, banks in the
Eurozone are able to obtain full allotment in their refinancing operations and thus
liquidity in much higher amounts than usual. This measure was supported by a
lowering of collateral standards and the Emergency Liquidity Assistance (ELA),
which is designed for national central banks to provide liquidity to troubled banks
on even more generous terms at their own risk. Moreover, the ECB provided long-term
refinancing operations (LTRO) for much longer durations (up to three years)
than usual.
- Government bond purchases and re-establishment of confidence: The ECB
went even further into unknown territory by setting up two consecutive
programmes to buy government bonds of stressed countries (SMP and OMT, see
Schema 1-1). However, under the SMP (which lasted from May 2010 to
September 2012), the ECB bought government bonds of these countries to the
amount of more than € 200 billion, which calmed financial markets only
temporarily. With the OMT (which started in September 2012 and is conditioned,
but unlimited in shorter durations), the ECB eventually succeeded in re-establishing
confidence among financial actors – even without buying a single
government bond up to now.2
Overall, the ECB rightly acted as a lender of last resort particularly to troubled banks
in the Eurozone. It could thus contribute to prevent the financial system from
collapsing and the real economy from suffering a deep crisis. These achievements,
however, came at the cost of a long lasting low interest rate environment that
burdens savers and poses increasing risks for financial stability (Chapter 2.2).
1.3 Interest rates in Germany
The ECB’s very expansive monetary policy also contributed to very low interest rates
in Germany. The most direct effect is visible on very short-term interest rates which
are usually very close to the interest rate set by the ECB. Also, interest rates on
longer horizons are influenced by the ECB, because its expansive monetary policy
tends to shift down the yield curve for all durations.3 Overall, the ECB’s uniform
2 For a discussion about the OMT see Matthes/Demary (2013).
3 The forward guidance – the ECB’s promise to keep its interest rates low for an extended period – is
particularly targeted at interest rates of longer maturities on the yield curve as these are determined by
the expectations for future short-term interest rates.

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monetary policy is currently too expansive for Germany, if the current business cycle
status is considered.
Other important factors also influence long-term German interest rates. These could
be rising inflation expectations in Germany, which, however, are not prevalent
currently. Capital flows to Germany have been more important. In particular, risk
averse investors withdrew capital from southern European countries and other more
risky assets and invested it in German government bonds which are considered a
“safe haven” due to their AAA rating status. This raised prices and lowered yields of
German government bonds which serve as benchmarks for other interest rates.
2. Impact of a long period of low interest rates
2.1 Different impact on creditors and debtors
Creditors and savers
The interest rate has an important function in an economy. It decides not only about
the allocation of capital across various available investments according to diverging
risk premiums, but also about the allocation of consumption over time. The interest
rate is a premium for foregoing current consumption in favour of future consumption
by means of savings. As lower interest rates reduce the benefit of savings, they do
not only reduce the current income of savers, but they also decrease the incentive to
save.
Figure 2-1: The effect of compound interest rates
Result of a long-term investment of €100 at different annual interest rates in Euro

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Lower saving yields are particularly relevant for long-term savings because of
compound interest rates. Figure 2-1 illustrates how substantial this effect is: €100 of
savings today yield €1,148 after 50 years at a constant annual interest rate of 5 per
cent (including interest on interest). However, at an annual interest rate of 2 per cent
(0.5 per cent) only €269 (€128) are obtained from the initial €100. This effect is of
high relevance for retirement provisions, which constitute an important savings
motive in Germany. Popular long-term savings instruments are endowment
insurances and annuities.
However, the effect of lower interest rates on savings is not as straightforward as it
might appear. If savers have fixed savings targets, they have an incentive to increase
their savings as interest rates decrease. Eventually, the reaction of private
households’ savings to lower interest rates has to be determined empirically. In
effect, the savings rate of private households has decreased in Germany in recent
years from close to 11 per cent in 2010 to 10 per cent of disposable income in 2013.
Moreover, surveys suggest that Germans’ propensity to consume is currently
relatively high.
Debtors
While savers are disadvantaged, debtors profit from lower interest rates. This
applies, for example, to companies taking out loans for investment projects, to
households’ mortgages and to government debt.4 Lower interest rates thus support
the sustainability of high debt and facilitate the repair of balance sheets of indebted
governments and private actors.
However, there is also the risk that debtors will not make sufficient efforts to
deleverage. They can fall under the illusion that debt service would also be possible
at higher interest rates. Moreover, if risk premiums fell regardless of the risk
associated to the underlying asset, interest rates would lose their allocation function.
An example of detrimental effects of low interest rates is the so-called “evergreening”
of credits by banks. If a bank is burdened with non-performing loans (NPL), low
interest rates create the illusion that companies can service their debt also at higher
interest rates. Low interest rates also keep ECB refinancing credit cheap and
decrease the opportunity costs of new loans. If banks thus continue to hold NPL
despite a significant probability of default, they postpone losses to the future and
sustain their own fragility. What is more, banks keep their balance sheets burdened
with NPL for questionable investments instead of recognizing certain losses and
4 The Bundesbank has calculated that the interest expenditure of the German government was by
some €120 billion since 2007 lower due to lower interest rates in recent years compared to the interest
rate in 2007.

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making room for new credits to viable companies and profitable investments. This
“evergreening” can thus lead to a misallocation of capital. In addition, a crisis can be
prolonged, because an economic upswing is hampered when credit availability is
restricted. This has recently been relevant in several stressed Euro countries.5 Japan
is another prominent case where banks avoided writing down NPL for a long time
(Watanabe, 2010).
2.2 Danger of asset price bubbles and to financial stability
Low interest rates can tempt investors to go on a „search for yield“. As higher yields
are mostly associated with higher risks, this strategy usually goes hand in hand with
a greater appetite for risk. In addition, the large volume of liquidity provided by the
ECB allows for more speculative behavior. This poses the danger that asset price
bubbles arise or that capital is misallocated. As real interest rates for shorter
maturities have already been negative for some time in Germany, the incentive for a
“search for yield” appears to be considerable. However, asset price bubbles are
difficult to identify with certainty. In the following, the equity and real estate market
are briefly analyzed in this respect.
Equity markets
The concern that ample liquidity and low interest rates lead to an excessive rise of
equity market valuations (Melloy, 2013) appears well-founded, when the recent
increase in stock prices in the US and Europe is considered. Whether equity
valuations have already reached problematic and overvalued levels, is more difficult
to decide. In the US – with the Dow Jones and the S&P 500 reaching all-time highs –
the evidence appears more troubling than for Germany’s DAX.
On the one hand, positive and rising profit expectations have supported the DAX
increase from levels which were probably depressed by the risk aversion during the
heights of the crisis. Moreover, the DAX is a performance index and includes also
dividend payments which have been substantial in recent years. While the DAX
performance index recently climbed to an all-time high temporarily, the DAX price
index (without dividends) still ranges considerably below its peak in 2007. On the
other hand, the price earnings ratio of the DAX has recently been in the area of 18.
This level considerably exceeds the long-term average of around 15 and could
provide a hint for a certain overvaluation.
5 High NPL ratios are prevalent in Cyprus (19.5 per cent), Greece (17.8 per cent), Italy (11.0 per cent),
Latvia (7.9 per cent) and Spain (6.4 per cent).

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Real estate markets
The global financial crisis had its origin in the US subprime real estate market. Low
interest rates had made mortgages cheap and banks had lent irresponsibly even to
households without a sound income basis. This tendency had been supported by the
government (Affordable Home Act). Financial innovations had allowed banks to
distribute excessive risks to the market in the form of structured and collateralized
securities. Overall, a credit boom emerged and real estate prices continued to rise to
excessive levels (Demary/Schuster, 2013). Unsustainable credit and real estate
bubbles had also built up in some European countries, particularly in Ireland and
Spain.
This experience has once again shown that real estate bubbles can be self-re-inforcing
and also tend to have strong repercussions for the economy. The
development usually starts to get out of hand in relation to economic fundamentals,
when expectations about continuously rising prices take hold. Then, economic actors
tend to buy real estate only to resell the assets relatively soon in order to make a
profit from higher prices. In this course, the economy is temporarily propped up by
strong construction investment and higher perceived wealth which supports
consumption expenditure (possibly credit-financed). However, large imbalances can
build up which are associated with severe and long lasting adjustment processes, if
they unravel:
- High indebtedness of households requires future deleveraging which dampens
future consumption growth.
- Banks balance sheets also deteriorate when real estate loans turn non-performing
and have to be written down, so that credit and investment suffer.
- Misallocations of capital and labour (e.g. a larger construction sector and high
residential investment) have to be corrected which also significantly dampens
economic activity for a longer period.
Currently, real estate markets in larger economies perform differently in reaction to
the low interest rate environment. In the US, the market has recently started a
recovery. In the UK, however, concerns are rising particularly in view of rapid house
price increases in London which led the Bank of England to start restricting credit
supply. In Germany, real estate market valuations have also increased significantly
(particularly in larger cities). However, prices rose from a rather low level and there is
no indication of rapid mortgage credit growth. While fears of real estate bubbles
seem relatively unfounded currently, the development of prices and credit needs to
be closely monitored.

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2.3 Impact on banks and insurance companies
Banks and insurance companies play an important role in the intermediation of
private households’ savings. About 86 per cent of their financial wealth is channeled
through financial intermediaries. This ratio has been rising since the mid-1990s.
Therefore, the effects of a long lasting low interest rate environment have to be
considered not only from the view point of financial stability of banks and insurers,
but also from the perspective of private households’ savings.
Banks
Banks are affected by low interest rates in their core business of intermediation. They
take in deposits from customers mostly on shorter durations and lend to other private
and public actors (corporations, households, government) with longer maturities
(maturity transformation). As interest on deposits is smaller than interest on lending,
banks benefit from the interest spread and generate an important part of their profits
from interest income. However, with a sustained low interest rate environment the
interest spread tends to be reduced, because interest on lending is likely to fall more
than interest on deposits which is very unlikely to fall below the zero bound. Banks
are affected gradually, however, depending on the intensity of maturity
transformation, because the reduction of interest on lending feeds through only over
time.
Figure 2-2: Bank profitability in Germany
in per cent
Source: Deutsche Bundesbank

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Figure 2-2 shows that interest income of German banks has fallen already since the
mid-1990s when high interest rates prevailed.6 The falling trend is in line with the
decreasing yield of government bonds. However, after 2008 the decline of banks’
interest income accelerated further. As interest cost hardly sank, interest profit also
declined significantly after 2008. In 2013, however, saving banks and local
cooperative banks were able to increase their total profit (Handelsblatt, 2014).
Banks can react to the threat of lower profits along several lines. They can retain
(reduced) profits to build up capital buffers, reduce operational costs and increase
non-interest rate business to a certain degree.
Insurance companies
Saving in the form of life insurance7 is quite popular in Germany. According to GDV
(2013) on average every German person owns at least one life insurance policy, as
there are 92 million policies (of which 77 million with the objective of retirement
provision). The total assets of German life insurers amount to nearly €800 billion.
Thus, the low interest rate environment poses challenges not only to life insurers
themselves but also to their policy holders. Before we move on to the impact of low
interest rates for an extended period, some remarks are made about the
characteristics of German life insurance products. In Germany, most life insurance
policies entail substantial long-term benefit guarantees for policy holders. In addition
to the guaranteed interest, policy holders receive a participation in surplus which is
also highly regulated. Corresponding to their commitments, German life insurers
invest the largest part of their assets in long-term assets quoted on the capital
market, mostly in fixed income securities with a high rating which are typically held
until maturity.
Due to these specific characteristics, life insurers as long-term investors are well
prepared to weather a certain period of low interest rates. As their assets still include
securities issued at higher interest rates in the past, the average yield of German life
insurers is still relatively attractive compared to other products (Figure 2-3). However,
the guaranteed interest rate that has to be paid on policies is determined at the start
of the contract. The guaranteed interest rate for policies taken out between 1994 and
2000 was 4 per cent. It was reduced in several steps to 1.75 in 2012. Therefore, the
average guaranteed interest rate in the insurance portfolio of German life insurers is
currently still at 3.15 per cent. In the current environment of enduring low interest
rates it is a challenge to meet this requirement. Significant steps have already been
6 However, the declining trend in interest rate income is also ascribed to overcapacities in the German
banking sector and a high intensity of competition (Engerer/Schrooten, 2004).
7 E.g. as endowment insurance products or increasingly in the form of annuities.

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taken to strengthen the risk bearing capacity of insurers. For example, risk
management systems were further improved and new regulatory requirements have
been introduced.
Figure 2-3: Guaranteed interest rate on German life insurances
in per cent
In the last years, the net return on assets was distorted by special effects.
Sources: BaFin; GDV; Deutsche Bundesbank
Moreover, life insurers can tackle these challenges in several ways. Apart from
reducing costs they can change their product portfolio and offer policies that are less
sensitive to low interest rates (e.g. unit linked products or products containing
reduced guarantees). In addition, they can strive for higher returns in their asset
management strategy. Moreover, investments in real estate and infrastructure
projects which offer higher yields, but are usually not liquid, could be increased.
However, a greater focus on higher yield riskier assets (e.g. equities, corporate
bonds) would lead to higher capital requirements due to the new regulation
framework Solvency II.8
Overall, banks and insurance companies are well able to withstand the current period
of low interest rates. However, the exit from the low interest rate environment would
be helpful in securing the business strategies that aim at providing reliable
intermediation for the savings of private households.
8 Nevertheless, life insurers have increased the share of corporate bonds in total assets from 2.3 per
cent in 2009 to 4.3 per cent in 2013 (Deutsche Bundesbank, 2013, 48).

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3. Economic preconditions for an interest rate turnaround
The very expansive and unconventional monetary policy of the ECB has been largely
justified as a reaction to multiple economic crises (Chapter 1). Thus, an exit from the
low interest rate period will not take place until the economic framework conditions
have improved and normalized sufficiently. Schema 3-1 provides an overview of the
relevant problem areas which will be briefly analyzed in this chapter. Furthermore, an
outline will be given about the progress and the remaining reform needs in view of
the suggested economic policy options. Overall, it will be shown that the economic
framework conditions for an interest rate turnaround have improved significantly and
that reforms tackle the relevant problem areas (see also IMF, 2014).
Schema 3-1: Economic environment and policy options
Recession /
Deflation
Banking sector
problems
High public debt High private
debt
Impact of the
economic
environment on
monetary policy
Low inflation due
to weak economy
and low capacity
utilisation
Price adjustment
in stressed Euro
countries,
possible risk of
deflation
Interest rate
increase could
threaten fragile
banks
Liquidity problems
and credit supply
restriction
Fragmentation of
financial market
and disturbed
monetary
transmission
Risk of fiscal
dominance:
political pressure
possible, as
interest rate
increases could
threaten
sovereign debt
sustainability
Political pressure
possible, as
interest rate
increases could
threaten solvency
of corporations
and households
Objectives of
economic policy
reforms
Supporting
upswing and
strengthening of
growth potentials
Strengthening of
banking sector
and improving
credit supply
conditions
Securing debt
solvency in the
long-term
Reducing
procyclical impact
of (needed) fiscal
consolidation
Debt reduction
with limited
impact on
economic activity
Preferred
economic policy
options
Structural
reforms of labour
and product
markets
Improving
international
competitiveness
Recapitalisation
(or resolution)
of fragile banks
Ultima ratio: ECB
could buy
structured credit
portfolios (ABS)
Well-timed fiscal
consolidation
Privatisation
Well-timed private
deleveraging
Simplification of
private insolvency
regimes

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3.1.1 Economic activity and structural reforms
Economic activity
It is a precondition for the interest rate turnaround that the upswing becomes broader
and more sustained. In fact, the Eurozone’s business cycle showed a clear upward
trend. The recession ended in 2013 and growth should gradually continue to pick up
and reach about 1.5 per cent in 2015. This expectation is supported by early
indicators for economic activity (such as the OECD Leading Indicator), which have
been trending upwards continuously since 2012.
The current low inflation rates – together with fears of a possible deflation – are
regarded as another barrier for an early exit from the low interest rate period. In fact,
Eurozone consumer prices rose by only 0.7 per cent (year on year) in April 2014 and
(relatively small) price declines are prevalent in several stressed Euro countries.
However, several arguments suggest that the current situation is only temporary.
Declining prices for energy and food reduce the average inflation rate – the core
inflation rate rose considerably faster (1.0 per cent) than the average. Moreover,
price declines in stressed countries should be largely seen as a transitory
normalization, because wages and prices increased considerably before the crisis
and led to a deterioration of international competitiveness. While it is not very likely
that falling prices induce consumers and investors to postpone purchases (which
could lead to a deflationary spiral), the future development needs to be closely
watched.
Structural reforms
Sustained economic growth is essential for several reasons: for the Eurozone to
recover, for inflation to return close to 2 per cent and for governments and private
actors to reduce indebtedness (see problem areas in Schema 3-1). Therefore,
structural reforms are the most important policy requirement, as they can
substantially increase the growth potential of Eurozone countries.
In fact, a wide array of research shows that structural reforms of labour and product
market (including business regulation) foster productivity and employment – and thus
growth and competitiveness (Nicoletti/Scarpetta, 2003; Djankov et al., 2006;
Bassanini et al., 2013; Varga et al., 2014; for an overview see Kolev/Matthes, 2013,
82 ff.).9 In addition, the experience of many countries shows that structural reforms
considerably improve economic performance (however, often only after an initial
phase of consolidation). This applies, for example, to the US, the UK and the
9 The main levers to achieve these aims are an increased intensity of competition and more open
markets.

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Netherlands in the 1980s as well as to Denmark, Sweden and Finland in the 1990s.
More recently, Germany is a valid case in point. The bundle of reforms taken some
ten years ago has had an enormous pay-off, particularly in terms of labour market
dynamics.
Currently, Spain and Portugal have good chances to become the next poster childs
illustrating the benefits of substantial structural reforms. Particularly, the Spanish
economy is gaining momentum. The opposite is true mainly for France and also for
Italy. Here, a lack of reforms has recently contributed to a weak growth performance.
Figure 3-1: Reforms in selected countries
Reform intensity*
*Reform Intensity: ratio of reforms taken in 2011 und 2012 in different policy fields in relation to the
reform recommendations of the OECD in the respective policy fields in 2011.
Source: OECD
Figure 3-1 shows that significant structural reforms have been taken on particularly in
the stressed Eurozone countries, partly with the involvement of the Troika. While
reforms have to be thoroughly implemented and continued, the reform efforts should
substantially increase the growth potential in the medium term.
Overall, the considerable reform record in the stressed Euro countries shows that
economic policy is on the right track and that the conditions for an interest rate
turnaround can be expected to continue improving.10
10 Recent developments also show that low growth and very high unemployment have also raised the
pressure for reforms in France and Italy. It remains to be seen, what the new governments can deliver
in terms of additional structural reforms.

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3.1.2 Banking sector, recapitalization and banking union
A sufficiently healthy banking sector is another precondition for an exit from the low-interest
rate environment. The weak banking sector particularly in the stressed Euro
countries resulted in a fragmented financial markets and disturbed monetary
transmission channel (Schema 3-1). This prompted the ECB to intervene with
unconventional measures.
Since the peak of the crisis, the situation has significantly improved in many areas of
the financial sector and particularly in the stressed Euro countries (Demary/Matthes,
2013; EZB, 2013; IMF, 2014) – even though several problems remain. On the
positive side, indicators for systemic risks have fallen, the interbank market is open to
most banks again, bank equity indices have considerably risen and ELA credits and
Target2 deficits have been reduced. However, banks in the stressed countries still
suffer from a large number of non-performing loans and, as a result, access to credit
is still restricted particularly to SME in these countries.
The improvements are not only due to the ECB which acted as a lender of last resort
(as sometimes claimed). Instead, they mainly result from an improvement in
fundamentals that has been supported by strong (though belated) policy action in the
right direction:
- The EBA forced banks to increase their risk weighted capital by requiring an early
implementation of Basel III (and CRD-IV- und CRR). According to the IW-Bankmonitor
(Demary, 2014) the core capital ratio of the large systemically
important banks in the Eurozone increased from 8 per cent in 2007 to 13 per cent
in 2013 (for the median).
- The banking systems of Spain, Portugal and Greece have been thoroughly
reformed in the course of an intervention of the Troika in connection with financial
support packages.
- The centralization of financial supervision in the hands of the ECB in the context
of the banking union is a very important step for the Eurozone, because national
supervisors all too often turned a blind eye on problems with domestic banks.
What is more, before the establishment of the SSM (Single Supervisory
Mechanism) the ECB is conducting a Comprehensive Assessment of the large
systemically important banks. As part of this exercise, particularly the solid stress
test has put banks under pressure to further improve their capital positions.
While the effectiveness of the banking union, which also includes a Single Resolution
Mechanism and Fund (SRM, SRF), still has to be confirmed in practice, there can be
no doubt that significant weaknesses of the Eurozone banking sector have been
tackled rather effectively and that the policy course is clearly going into the right
direction. Thus, there is still some way to go. But the environment for an interest rate
turnaround has improved also in this field.

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3.1.3 Public debt and fiscal consolidation
High and persistent public indebtedness of important Euro-area countries could
restrict the discretion of the ECB to raise interest rates and pose dangers for its
independence. In the course of so-called fiscal dominance, monetary policy could be
misused to guarantee debt sustainability instead of price stability (Schema 3-1). How
likely is such a fatal development?
On the positive side, there is considerable progress in fiscal consolidation, as
structural deficits11 have been reduced considerably – for example by about
6 percentage points in Spain and Portugal respectively, and by even more than
16 percentage points in Greece (if the figure for 2013 is compared with the worst
structural deficit between 2005 and 2012). It is sometimes criticized that the EU has
allowed the pace of consolidation to slow down recently, but this appears justified in
most cases.12 In fact, consolidation measures during the euro debt crisis had more
negative effects on short-term growth than expected (Kolev/Matthes, 2013).
Despite fiscal consolidation being broadly on the right track, the stock of public debt
has continued to rise up to now in many Euro countries. The debt level is forecast to
stabilize and to come down gradually soon. But it will remain high for an extended
period. Thus, the danger of fiscal dominance cannot be ruled out. However, several
arguments can qualify this fear:
- The ECB is bound by its statute to give a clear priority to price stability. Its
unconventional policies in recent years are interpreted by some as an indication
that this stability orientation can no longer be relied upon. However, some
evidence to the contrary can be seen in the ECB’s two interest rate increases in
spring 2011 from 1.0 to 1.5 per cent, when the euro debt crisis appeared to cool
down. The ECB took these unpopular steps despite already high and further
rising public debt and facing considerable criticism because it intended to act
preemptively against inflation pressures.
- The current public debt levels appear manageable in most cases. Due to higher
public debt levels, the public interest expenditure quotas have recently increased
(Figure 3-2). However, they are still relatively low compared to the early 1990s,
because interest rates for government bonds have been relatively low in the
period before the euro debt crisis and more recently.13
11 Cyclically adjusted and corrected for one-off fiscal measures.
12 France is a special case as a two year extension to meet the 3 per cent criterion (for the fiscal deficit
in relation to GDP) has not been met by the structural reform effort required by the EU upon the
extension. Currently, even the extended target date 2015 is put into question.
13 Particularly in Greece, but also in Portugal and Ireland, the public interest expenditure quota is low,
because of rather low interest rates provided by the Euro rescue funds. However, as current interest
rates are very low for 10-year government bonds of Ireland and Portugal, market financing of current

18
Figure 3-2: Public interest expenditure ratio
in per cent of GDP
Source: European Commission, 2014
- Taking the public debt situation of most stressed Euro countries as a benchmark,
there is room for the ECB to raise interest rates by 1 to 2 percentage points, if
public debt sustainability is estimated on the basis of current forecasts for 2015
(Demary/Matthes, 2014). Higher nominal growth, low long-term interest rates on
government bonds and an improved fiscal performance (primary balances) are
the key drivers for this result.
Overall, high public debt levels surely increase the vulnerability of Euro countries and
will keep discussions about fiscal dominance alive. However, concerns are only
limited, if fiscal consolidation is continued and economic growth returns as expected.
3.1.4 Private debt, deleveraging and reform of insolvency regimes
As high private indebtedness leads to a process of deleveraging14, economic activity
tends to be dampened. Even a so-called balance sheet recession can arise. This
constellation influences the leeway of monetary policy (Eggertson/Krugman, 2012;
Koo, 2013) and can become an impediment to an exit from a low interest rate period
(Schema 3-1). It is difficult for economic policy to achieve the optimal pace of
deleveraging (IMF, 2014). On the one hand, deleveraging dampens current
fiscal deficits is unlikely to significantly raise the average public interest expenditure quotas. This does
not pertain to Greek 10-year government bonds whose yield is considerably higher.
14 In the process of deleveraging, a part of future income has to be devoted to debt reduction and is no
longer available for consumption or investment.

19
economic performance and further burdens banks’ balance sheets. On the other
hand, deleveraging is a precondition for a sustained upswing to take hold in the
medium term (Bech et al., 2012).
Private sector debt is still high in several Euro countries (Figure 3-3) and could so far
be reduced only in a few countries (Bornhorst/Ruiz Arranz, 2014; Deutsche
Bundesbank, 2014a; IMF, 2014). In many stressed Euro countries, including Italy,
particularly corporations are burdened by high debt levels.
Figure 3-3: Private sector debt in the Euro area
in per cent of GDP
Sources: Eurostat; EZB; Institut der deutschen Wirtschaft Köln
Therefore, private insolvency regimes are paramount in facilitating corporate
deleveraging. Ideally, firms with considerable debt problems should be able to
access a restructuring procedure relatively early to keep them viable. 15 Non-viable
firms should be rapidly liquidated in order to set resources free for a more productive
allocation. Therefore, insolvency regimes should have clear and reliable rules and
should strive to minimize time and transaction costs, e.g. by using out-of-court
institutions.16
In practice, private insolvency regimes were traditionally often cumbersome and time
consuming, particularly in the stressed Euro countries. Progress in reform is uneven.
15 However, care has to be taken that the rules do not create problematic incentives to the detriment of
creditors, i.e. moral hazard on the side of the debtors.
16 Moreover, financial supervisors should strive to prevent banks from “evergreening” non-performing
loans. The Comprehensive Assessment of the ECB is an important step in this direction.

20
While particularly Spain, but also Portugal have made decisive steps into the right
direction, Italy and Greece still lag behind (for more details see Liu/Rosenberg, 2013;
Demary/Matthes, 2014). Overall, more progress is needed in this policy area to
support the conditions required for an interest rate turnaround.
3.1.5 Interim conclusion
The economic framework conditions for an exit from the low interest rate phase have
improved considerably. Economic activity is clearly on an upward trend which is
expected to continue despite of continuing uncertainties. Significant structural
reforms have been implemented in most stressed Euro countries which will most
likely increase growth potentials soon (as already appears to be the case in Spain). A
stronger economy should reduce fears of deflation to a temporary phenomenon.
Stress indicators and fundamentals in the banking sector have also improved on the
back of (late, but eventually decisive) policy measures and will continue to do so in
the course of the pending stress test. Public and private indebtedness should be
manageable in an environment of moderate economic growth and more normal
inflation. Also, reforms of insolvency regimes are in part encouraging. These are the
conditions which characterize the baseline scenario assumed here.
However, certain risks remain. The relatively optimistic economic outlook could be
endangered, if geopolitical uncertainties depress business and consumer sentiment
permanently or if credit restrictions in stressed Euro countries remain too grave.
Moreover, reforms in the banking sector and those regarding insolvency regimes
have to be continued. Particularly in Italy and France, the lack of reforms needs to be
tackled soon and decisively. In fact, in both countries reform pressures have been
increasing despite low interest rates, because unemployment remains too high and
economic activity continues to be stagnant. Overall, there are encouraging signs that
the risks mentioned here can be contained.
Under the baseline scenario, economic and financial conditions should have
improved sufficiently to start an exit from the low interest rate environment in the
second half of 2015 (see also OECD, 2014).
4. Recommendations for the ECB
Challenges of an exit
An interest rate turnaround after such a long period of very low interest rates poses
certain challenges: First, interest rate increases generally have stronger effects on
the economy than decreases (Ravn/Sola, 2004). Second, fixed income and
particularly longer term securities will lose value. This loss is proportional to the

21
interest rate increase and could be larger, as interest rates are currently very low.
Third, financial actors using maturity transformation strategies face the additional
pressure that higher interest rates will raise costs for short-term financing faster than
income from long-term assets. Fourth, the expectation of rising interest rates will
cause investors to adjust their portfolios. As part of the adjustment process, an
overreaction and financial turbulences are possible (Kohn, 2013), as investors could
be tempted into a “run for exit” in order to minimize losses. In this respect, the
experience in May 2013 was telling, when financial markets in many emerging
countries tumbled after Ben Bernanke only vaguely announced that the FED would
start reducing its asset purchases. Similar turbulences occurred following the interest
rate turnaround in 1994 and even culminated in the Mexico crisis (IIF, 2013).
Considering these risks, the ECB should carefully frame the exit from the low interest
rate environment in order to minimize detrimental effects for the economy and for
financial markets.
A critical view on ECB actions
In this respect, the interest rate cuts and the announcement to keep interest rates at
a very low level can be questioned on several grounds:
- Forward guidance could create problematic incentives, because financial actors
will become more vulnerable to future interest rate increases, when they allocate
their assets based on the expectation of a lasting low interest rate phase.
- The ECB should not only focus on short-term risks to economic activity and low
inflation, but should pay more attention to the rising risks to financial stability in
the medium term.
- In order to prevent future risks to price stability, interest rates have to increase
way before inflation gets back to the target rate of close to 2 per cent.
- Additional interest rate cuts will deepen the low interest rate environment without
having major effects on the economy.
Recommendations for a smooth interest rate turnaround
In order to minimize the potential negative impact of an interest rate turnaround the
Institut der deutschen Wirtschaft Köln recommends a smooth and intensively
communicated exit. In particular, interest rate increases should be much smaller but
more frequent than usual; when the upswing becomes broader, the interest rate
hikes need to become larger (see box).17 With such a smooth interest rate
turnaround financial actors receive a clear signal of the changing interest rate trend,
but can adjust more gradually to an environment with slowly increasing interest rates.
17 This proposal is based on a more vague suggestion by Goodhart (2013).

22
This strategy could also allow the ECB to initiate the interest rate turnaround earlier
and to be more flexible with regard to the path of interest rate increases.
Box: Schematic example for a smooth interest turnaround
Figure 4-1 displays an example of a possible interest rate turnaround in a schematic and
simplified way. In the reference scenario, the ECB acts as usual and raises interest rates by
0.25 percentage points in a rhythm of three or six months. For example, the ECB increased
its main refinancing rate between the end of 2005 and mid-2007 from 2 to 4 per cent mostly
by means of quarterly rate hikes. Starting in mid-2015, the reference scenario assumes two
initial rate hikes after six months respectively – and the following hikes on a quarterly basis.
The target rate is assumed to be 2 per cent by mid-2017. This level can be regarded as an
approach to a normal interest rate level, considering that inflation rates in 2017 are currently
expected to be much closer to, but still considerably below 2 per cent.
Three scenarios of a smooth interest rate turnaround are displayed in comparison to the
reference scenario. Scenario 1 starts with interest rate hikes of 0.01 percentage points on a
monthly basis. Over time, the monthly steps gradually increase to 0.15 percentage points. In
scenarios 2 (3) the 2-per cent level is reached later (earlier) according to the assumption
that economic activity is weaker (stronger) than in the baseline scenario.
Figure 4-1: Hypothetical exit scenario
Main refinancing rate of the ECB in per cent
Scenario 1: The baseline scenario reaches the 2-per-cent-level at the same time than the reference
scenario of usual interest rate hikes of 0.25 per cent. Scenarios 2 (3) show a path for interest rate
increases in case of a weaker (stronger) economic activity compared to the baseline scenario.
A smooth exit from the low interest rate environment poses challenges to the ECB,
however, because financial actors do not have sufficient experience with this
strategy. Therefore, the ECB needs to communicate intensely with the financial
market with regard to the timing and path of the interest rate turnaround. It should
publish also qualitative (rather than only quantitative) criteria and indicate its current
and expected evaluation of these criteria in its regular communications.

23
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