Lessons From Unconventional Monetary Policy for
Small Open Economies and Emerging Markets*
Douglas Laxton
Chang Yong Rhee
I feel very honored to be invited to this year's Jackson Hole Symposium, especially
during this time of heightened uncertainty. The paper I'll be discussing is co-authored
with Doug Laxton.
In response to an unprecedented health crisis, not only have central banks in advanced
economies re-employed unconventional monetary policies (UCMPs) that had been used
extensively since the global financial crisis, but these unconventional policies can also
be found in emerging market and small open economies. With stronger rebound in
aggregate demand than aggregate supply, and rising prices, inflation has soared to
levels not seen in recent decades.
Amid these abrupt changes, we were asked to discuss new constraints from the
perspectives of emerging market or small open economies. To be more concrete, we
would like to explore two questions:
1. What lessons should emerging markets learn from the experiences of deploying
unconventional policies in advanced economies? What implications do they have
on current and sudden high inflation challenges?
2. Should emerging market economies use similar unconventional policies if they
face strong deflationary pressure in the future?
By unconventional monetary policies, we mean quantitative easing (QE), as well as
unconventional forward guidance (UCFG), which is qualitative, date-based or threshold-
based forward guidance on the future paths of policy. The Fed's "lower-for-longer"
expressions such as, "at least through mid-2015," or, "at least as long as the
unemployment rate remains above 6.5%," are prime examples. This contrasts with
"conventional forward guidance" (CFG), which utilizes a comprehensive forecast of
macro variables with an endogenous interest rate path that is consistent with the
objectives of the central bank.
How successful were UCMPs in advanced economies?
Let me first briefly mention how successful unconventional policies were in advanced
economies. As you know, major central banks began encountering their effective lower
bound in the aftermath of the global financial crisis and expanded their balance sheets
massively in response to the ensuing recession. In addition, a discrete increase in major
central bank assets occurred again during the COVID pandemic.
Abundant empirical studies have shown that these unconventional policies have been
quite effective in lowering long-term interest rates and holding up output.
What are the drawbacks of UCFG?
Despite the successes in boosting economies, however, the experiences of
unconventional forward guidance have exposed several weaknesses.
The first is the difficulty in communicating the conditionality and the time horizon of
the guidance. An "oversimplified" communication strategy doesn't properly provide
insights into how policy is likely to evolve in rapidly changing environments.
Second, such "oversimplification" leads markets to underestimate uncertainty, which
probably makes it difficult for central banks to exit. A good example is the taper tantrum
in 2013, in which a change in market perceptions triggered financial market turmoil,
out of line with the modest policy tightening envisaged in the Fed's cautious public
statements.
Third, such guidance can distort markets as the prolonged period of "r-g" less than zero
could lead to fiscal irresponsibility. The potential reversion of "r-g" can then call into
question debt sustainability in the new interest rate environment.
Another risk is the perception that the central bank is inclined to remain committed to
forward guidance or risk credibility. This inflexibility could be a factor that has
contributed to policymakers' current difficulties in dealing with the shift to a high
inflation environment.
Practice of UCMPs in EMEs during the COVID pandemic
Although unconventional forward guidance has significantly contributed to economic
stability after the global financial crisis, some of its weaknesses may have caused major
central banks to recently discontinue unconventional forward guidance. Bloomberg
called this "death" of forward guidance.
Then, what does this experience in advanced economies imply for emerging markets?
In fact, several emerging market countries also introduced QE-type policies together
with large fiscal stimulus during the COVID pandemic, though at a much smaller scale.
For instance, central banks purchased mortgage-backed securities or corporate bonds
in Poland, Hungary and Thailand, as well as government bonds through primary
markets in Indonesia and the Philippines.
Several studies have shown that unconventional measures have been relatively effective
in emerging markets, too. Financial markets were stabilized without significant
currency depreciation or capital outflows, despite massive expansionary monetary and
fiscal policies, in some cases defying the taboo of buying government debt in the
primary market.
Such effective uses, however, might have been attributed to a common global shock.
Abundant global liquidity and the fact that advanced economies themselves were
breaking taboos on a much larger scale might have helped emerging economies avoid
being penalized by international capital markets for ultra-loose expansionary policies. It
is therefore questionable whether the same results would be obtained if emerging
markets alone were to face the risk of falling into secular stagnation and if they were to
implement similar expansionary fiscal and monetary policies in response.
Constraints on UCMPs in EMEs
A more difficult question is whether emerging economies should use unconventional
policies when facing secular stagnation, when global liquidity is not sufficient. The
chance of returning to very low inflation and low growth is significant for Korea and
other Asian emerging economies, such as Thailand and China, considering their rapid
aging and earlier experiences of low inflation.
Even so, unconventional forward guidance may not be a desirable toolkit for emerging
markets with greater uncertainty, exacerbating the inflexibility of unconventional
forward guidance to sudden economic changes and the exit problem.
In addition, there are several structural factors to consider. For unconventional forward
guidance to be successful, the central bank must be able to commit to the announced
strategy and make a credible case that it is consistent with achieving the central bank's
objectives. Otherwise, the central bank could be subject to aggressive speculative
attacks. For example, unconventional policies trying to lower interest rates could lead to
excessive depreciation of the local currency if the market perceives the policy as being
inconsistent with the macroeconomic fundamentals of the country.
Concerns about fiscal dominance is another example. The experience of Japan since the
1990s well-illustrates that the main driver of public debt explosion has been aging-
related spending, not fiscal spending to boost the economy as is commonly believed.
This shows that it is not easy for emerging economies that are experiencing rapid aging,
to credibly convince markets of a scenario that temporarily requires a large fiscal
stimulus while promising to maintain fiscal sustainability in the long-term.
An alternative conventional forward guidance
So, if unconventional forward guidance is not desirable, then what are the alternatives?
One option could be scenarios-based conventional forward guidance. For example, in
summer last year, this framework could have been used to present different scenarios
for the two clear narratives regarding inflation: persistent vs transitory.
The first scenario would have assumed inflation was more persistent, requiring faster
policy normalization. In contrast, the transitory scenario would have assumed that
inflation was purely supply-driven and the inflation pressures were temporary, and
therefore, the central bank would be committed to supporting an economy still
recovering from COVID.
This framework might have helped major central banks to better manage the
constraints on monetary policy during the recent transition from a low- to high-
inflation environment.
Controversies in the transition to scenarios-based CFG
Despite its attractiveness, there are also considerable objections to applying scenarios-
based conventional forward guidance to emerging markets.
First, monetary policies in emerging market and small open economies are heavily
affected by policies in advanced economies. They may have improved their
independence from the government, but still cannot be independent from the Fed.
Therefore, rather than solely relying on the interest rate, alternative policy tools, such
as FX intervention, macroprudential tools, and sometimes capital flow management
measures, need to be utilized as well. The Integrated Policy Framework (IPF) by the IMF
and Macro-Financial Stability Frameworks (MFSFs) by the BIS address this issue. In
these circumstances, some believe that it is technically impossible to construct a simple
baseline and reasonably small number of alternative scenarios.
Communication difficulties are another problem. The information contained in
conventional forward guidance may be useful to market experts in that alternative
scenarios can guide them when the realized state of the economy deviates from the
baseline. However, the realization of an alternative scenario could be interpreted
differently by the general public, as perhaps that the central bank is an incompetent
forecaster.
A recent Bank of Korea policy decision is a good example that illustrates these
controversies. In July, the BOK raised its policy rate by 50 bps for the first time in its
history. Given that market participants already anticipated a 50-bp rate hike, forward
guidance on the future policy path, rather than the current interest rate hike, became
even more important.
After debating the aforementioned pros and cons, a compromise approach was taken. In
the official statement, we only included qualitative remarks such as "The Board sees
continued rate hikes as warranted." Then, we provided more detailed forward guidance
during the press conference, such as saying that "gradual, 25-basis-point increases will
be appropriate for some time as long as inflation paths remain as currently presumed."
This was intended to give us more flexibility on the future policy path, while providing
the minimal forward guidance that market experts would like.
Concluding Remarks
In conclusion, we believe that unconventional forward guidance is not an ideal policy
tool for emerging market and small open economies, where exit strategies must be
sought more frequently. Insufficient central bank credibility and a potentially larger
impact on fiscal dominance, debt sustainability, and currency depreciation make
unconventional forward guidance a far riskier option than in advanced economies.
However, considering the possibility of facing secular stagnation due to fast aging in the
future, emerging markets do not have the luxury of giving up QE and forward guidance
completely. They had better start to build up a better policy framework, such as
scenarios-based conventional forward guidance.
Admittedly, trying to build an analytical framework that can accurately predict the
future course of the economy would be overly optimistic.
But I'd like to remind you of Stanley Fischer's famous quote of Samuelson: "I would
rather have Bob Solow than an econometric model but I'd rather have Bob Solow with
an econometric model than without one."
To develop unconventional tools which are robust to their specific needs and issues, it's
time for emerging market or small open economies to invest in building analytical
capacity, strong implementation records, and extensive research.
Thank you very much.