Jean-Pierre Landau: International monetary arrangements
Speech by Mr Jean-Pierre Landau, Second Deputy Governor of the Bank of France, before
the Reinventing Bretton Woods Committee, Beijing, 6 September 2010.
* * *
Opinions expressed are solely mine and do not represent the views of Banque de France or the Eurosystem.
International financial and monetary arrangements are currently extensively debated. For
many countries, both advanced and emerging, the crisis has shown that there is a close link
between internal and international financial stability. In addition, rebalancing of the world
economy stands at the forefront of the G20 policy agenda and there is a perception it may be
difficult to achieve under current arrangements.
According to an apt definition, an international monetary system consists of (i) exchange rate
arrangements; (ii) capital flows; and (iii) a collection of institutions, rules, and conventions
that govern its operation (Carney, 2009). Explicit or implicit "rules of the games" form the
backbone of such a system.
This is an ambitious approach and it may seem too normative to some. But it has a long
history, starting with the gold standard, from which the phrase "rules of the games"
originated. The Bretton Woods system itself was built around an elaborate framework of
rules, disciplines and support mechanisms aimed at ensuring convertibility for the current
account - but, crucially, not the capital account -, together with fixed but adjustable
exchange rates.
With the generalisation of flexible exchange rate regimes, the normative approach to the
international monetary system was somehow weakened. Capital account liberalisation led to
entrust international financial markets with the "disciplining" function. When it became
apparent that the discipline could often lead to abrupt capital flows reversal and crisis, the
international community attempted to strengthen the IMF surveillance and develop its
facilities so as to pre-empt such shocks and make them more manageable. That is, basically,
where we are today.
Everything must be done to ensure that IMF surveillance works. But, like any "disciplinary"
approach, it meets with three essential difficulties: first, diverging interests between
countries; second, enforcement problems (the IMF has naturally more leverage on countries
that need its help than on others). Finally there is a perception of asymmetry in IMF
surveillance; it may be compounded by a more fundamental and natural asymmetry between
surplus and deficit countries, when it comes to implementing adjustment measures. And,
some would say, there might also be a de facto asymmetry between reserve and non
reserve currencies, although, as I shall mention later, the situation is more subtle.
These difficulties were apparent during the last part of the 20th century. But what makes the
"disciplinary" approach almost impracticable today are the changes that have occurred in the
world at the turn of the 21st century. The world today stands in stark contrast with both the
Bretton Woods era and the period that followed immediately:
 The first - and most obvious - difference is the number of countries that are active
participants to the system and have a stake in its functioning. The monetary and
financial world is becoming increasingly "multipolar". While the current system
comprises three currency blocs, at least one (the Chinese RMB) and may be other
additional systemic currencies will emerge in the future.
 Second, those participants are more diverse from the point of view of their economic
structure, their demography, their level of development, and, more importantly, their
social choices and preferences. For instance, different saving rates may be seen as
resulting from divergent time preferences. Likewise, asymmetries in financial
development may, to some extent, reflect different choices and tradeoffs between
efficiency and stability in the organisation of capital markets and the architecture of
financial systems.

Finally, linkages between economies, whether through trade, capital or more
intangible "confidence" channels are continuously getting stronger as witnessed by
the speed and amplitude of contagion of economic and financial shocks during the
last eighteen months, which took everybody by surprise.
Pending some economic catastrophe, these characteristics will persist over time. A large
number of different countries, with different preferences, will permanently be linked and
interdependent through active, but imperfect capital markets. Any future international
architecture must be compatible with those basic features of today's world which, prima
facie, create the potential for more complexity and, maybe, instability.
Therefore, when discussing international monetary arrangements, one must try and take a
different view, encompassing all aspects of the financial interrelationships between nations.
To a large extent, international monetary arrangements, as well as current account
imbalances, are the by-products of policy choices made by countries on their capital account
regimes and financial development. Here, I will focus on three topics: global imbalances, the
provision of international liquidity and the newly emerging question of an international store
of value. These are issues of joint and common interest for all countries, Getting to a
common understanding on those matters would help in making progress on other, more
contentious questions, such as exchange rates regimes.
Global imbalances and the policy agenda
Current account imbalances have increased both in amplitude and durability during the last
decade. In fact, they have become a permanent characteristic of our economic environment.
Contemporary analysis point to "structural" causes behind the pattern of capital flows and
global imbalances:

According to the "Bretton Woods II" approach (Dooley et al. 2003, 2008, 2009), the
pattern of capital flows results from a mutually beneficial equilibrium between two
groups of countries. On the one hand, emerging economies which follow an
exportled development strategy and seek to prevent appreciation of their real exchange
rates by constant foreign exchange intervention (together with capital controls). As a
consequence, they accept to accumulate increasing stocks of liquid assets
denominated in dollars. On the other hand, the US is happy to get both reserve
inflows to finance their deficits and cheap imports to fuel their demand for
consumption goods. Such equilibrium is stable by virtue of the mutual benefits it
brings to both groups. Moreover, the more it lasts, the more it is impossible to
change since both group become mutually dependant through the stock of claims
and debts they have reciprocally accumulated. Any significant break, for instance, in
the allocation of reserves by surplus countries, would both trigger major exchange
and interest rate volatility in deficit countries and lead to significant valuation losses
in surplus countries. This "financial balance of terror" is supposed to keep the
system in place for a long period of time. Implicit behind this doctrine, however, is
the assumption that the creditor country can live with the risk of losses on its
reserves and accept that possibility as a price to pay for the success of its growth
strategy.

A more recent explanation is provided by the "asset shortage" theory (Caballero,
2006), which helps and explains why asymmetries in financial developments
generate both payment imbalances and asset bubbles. According to the theory, the
world has a shortage of liquid and riskless assets. Moreover, the supply of those
assets is asymmetrically distributed between regions, with the US providing a large
chunk of the total. Hence, there is a structural excess demand for dollar
denominated securities, which sustains permanent capital inflows in the US. To the
extent that the US financial system does not generate enough "pure" safe assets,
this creates an incentive for the financial sector to manufacture such assets from the
securitization of lower quality ones, but at the cost of greatly increased financial
fragility (Caballero, 2009).
The policy consequences are important.
1. First, current account imbalances will likely prove more resilient than expected to
exchange rate movements or inflexions in macro policies. If the causes are
"structural", significant shifts in demand and relative prices between countries may
well lead to suboptimal growth and excess volatility. In the immediate future,
"financing " those imbalances should take precedence over their "adjustment".
2. Second, global imbalances reflect a mix of different national preferences and
inflexions caused by public interventions. One important focus in the policy debate
should be to disentangle those two types of structural causes, and eliminate pure
policy induced distortions. Obviously, this is no easy task, but, in the end, a crucial
one if imbalances are to be addressed and reduced.
3. Finally, financial development matters. This is one area where preferences differ
between nations and public policies have a huge impact. This is also a source of
major uncertainty for the future. In a more diverse, multipolar world, interactions
between countries with different financial systems will become more complex and,
as the crisis has shown, very destabilizing.
Will there be a move towards liberalisation of capital accounts or will existing restrictions and
controls be maintained in some parts of the world? Opening the capital account exposes
countries to increased financial volatility. The impact, however, is different for capital
importers and exporters. Capital importers face the possibility that flows would abruptly dry
up, thus inflicting damaging shocks to their financial systems and national economies.
Capital exporters accumulate claims on the outside world and, therefore, run the risk of
valuation losses (through exposure to country and exchange rate risk). Ideally, an
international open capital account regime would protect both capital importers towards
sudden liquidity shocks and capital exporters toward abrupt changes in the value of their
assets. These are potential avenues for progress and debate.
International liquidity
The crisis is a powerful reminder that liquidity - both domestic and international - can never
be taken for granted. The provision of international liquidity has been severely disrupted.
How will it be provided in the future, and by whom?
These are not new questions. In the recent period, Governor Zhu, from the People Bank of
China has raised the issue of reserve currencies. According to Governor Zhu, current
arrangements for liquidity provision are a source of instability and have played a role in
causing the crisis. Governor Zhu has mentioned, in particular, the intrinsic contradiction
embodied in the famous "Triffin dilemma". Because the dollar is the major reserve currency,
international liquidity supply depends on the US running a sufficiently large current account
deficit which, by itself, aggravates global imbalances and creates instability. Governor Zhu
suggested that the role and status of the SDR be enhanced, with the long term objective of
creating a "super reserve" currency.
However, the Triffin dilemma goes back to a period when international capital markets were
poorly developed. By then, international liquidity was limited to instruments used to settle
payments between official monetary authorities. It was represented by claims on such official
entities. By contrast, in today's world, most international liquidity is privately provided and
represented by claims on private institutions. Interbank markets play a crucial role in this
process. The more capital markets become integrated at the short end, the more
international liquidity is provided by the private sector.
As a consequence, there is a strong continuity and complementarities between domestic and
international liquidity. Both depend on the willingness of counterparties to extend credit to
each other. Both are subject to aggregate supply and demand shocks with sudden shifts in
risk aversion or liquidity preference. Both result from leveraging and deleveraging by private
institutions (Adrian and Shin, 2008). When markets seize, counterparty risk is perceived as
excessive, uncertainty settles in, financial institutions deleverage their positions towards non
residents, and then international liquidity dries up and disappears.
When a shock occurs, public provision of liquidity has to substitute to private provision. In a
domestic context, this is the function of the lender of last resort. But when the shortage is
about foreign currency liquidity, this role has to be played by foreign exchange reserves.
Foreign exchange reserves
In the last decade, emerging countries have constantly sought to expand their foreign
exchange reserves. The emerging markets' average reserve ratio has more than quintupled
from 4 percent to over 20 percent of GDP since 1990 (Obstfeld et al. 2009, Matteo y Lagos
et al., 2009).
One cannot assume, however, that equilibrium has been reached and that the demand for
reserves will stabilize. On the contrary, there are strong indications that this trend will persist,
or even be amplified, following the crisis.
How much reserves are enough? Theoretical reasoning would balance the benefits of
holding reserves against their cost, with some notion that there is an optimum.
On the benefit side, reserves can be detained or accumulated for a variety of motives:
 to smooth out the impact on consumption of shocks on the current account, which is
the most basic and traditional motive, even in the absence of international capital
flows

as a result or by-product of foreign market intervention to prevent exchange rate
appreciation. This is usually defined as a "mercantilist" motive.

as precaution against possible abrupt capital outflows (the "sudden stop" syndrome)
The costs of holding reserves are also well identified:

there is a direct opportunity cost because foreign exchange reserves' risk / return
profile may be lower than for other, alternative, investments.

finally, as reserves accumulate, countries are getting increasingly exposed to
exchange rate risk and face the possibility of significant valuation losses.
This traditional cost / benefit analysis seems less and less able, however, to account for the
true behavior of reserve holders.
During the crisis, foreign exchange reserves were used as a tool for internal - as well as
external - financial stability. National Central Banks, especially in Latin America, acted as
dollar lenders of last resort to their domestic banks. (Obstfeld et al. 2009).
This function will develop in the future. Financial openness and integration means that
domestic banks will engage more and more into foreign currency operations. In turn, the
expansion of their international balance sheets will increase the potential demand for liquidity
support in case of shocks. This trend should be accepted as a normal consequence of open
capital markets and international banking, together with the predominance of a very limited
number of currencies in international finance.
It is bound to impact the demand for reserves and increase the need for self insurance. One
characteristic of liquidity shocks is that the net demand for liquidity may become almost
infinite. Ex ante, no buffer is ever big enough. No amount of reserves will fully protect a
financially open economy against a systemic shock. It is noticeable that countries, such as
Korea, which possessed very important amounts of reserves prior to the crisis and has a
flexible exchange rate regime, nevertheless felt the need to enter into currency swaps with
the Federal Reserve.
In a sense, countries face the same dilemma as private institutions. They need liquidity in
times of stress but it is costly to hold in normal times. Their reactions, however, are opposite.
Private institutions tend to underestimate their liquidity needs because, in case of shock, the
Central Bank can step in as a lender of last resort. For countries, the bias goes in the other
direction. Provision of international liquidity, whether private or official, is contingent,
conditional and uncertain. With no international lender of last resort, financial stability motives
could lead to unlimited accumulation of liquidity. Internationalisation of finance has created a
fundamental indeterminacy in the demand for reserves. As a consequence, past benchmarks
used to assess the adequacy of reserves are no longer valid. Current research (Obstfeld
et al. 2009 ) shows that broad domestic money aggregates may be the best explanatory
factors for the amount of reserves.
Multilateral provision of international liquidity: the search for financial safety nets
The rationale for a multilateral source of liquidity provision is straightforward: stabilizing the
demand for international reserves would bring huge benefits in terms of world welfare.
At the moment, reserve accumulation can only occur through a conjunction of balance of
payment surplus and some degree of exchange rate intervention and creates externalities for
other countries.
Now, suppose there is "ex ante" an existing pool of reserve assets which countries could tap
into under specific circumstances. If access to this pool is credible and predictable, there
would be no need for getting those reserves from the market. This would reduce the
incentive for countries to conduct a whole set of policies such as:

generating current account surpluses through active exchange rate management

ring fencing pools of liquidity and capital in local subsidiaries, therefore creating a
potential segmentation of international financial markets.

implementing "soft" capital controls to limit the impact of shocks and diminish the
need for reserves
All countries, therefore have a common interest in finding ways to disconnect reserve
accumulation from exchange rate management and, more generally, from balance of
payment situations and monetary policies.
The need for national reserves could be reduced if credible mechanisms exist to provide for
the supply of official liquidity on a multilateral basis. Significant progress has been achieved
in this direction during the recent period. A dense network of forex swaps has been put into
place between major Central Banks in the midst of the crisis. Other recent official initiatives
include: the creation by the IMF of a new facility - the Flexible Credit Line - aimed at easing
liquidity pressures on countries with no fundamental balance of payments difficulties; a new
SDR allocation, the biggest ever, for the equivalent of 250 bn USD, which has been enacted
by the IMF Executive Board.
These are, however, revocable and limited sources of liquidity provision. Swap agreements
can be (and have been) terminated. Out of the total, only a small part of the SDR allocation
will benefit countries which may effectively need to use them. More may be needed to
substitute for national foreign exchange reserves as a permanent insurance mechanism.
Contingent liquidity
The search for new liquidity sources meets with an inescapable moral hazard problem. On
the one hand, to be equivalent to reserves going forward, multilateral liquidity must be
available ex ante and without condition. On the other, there is a danger that fully
unconditional liquidity be used to deal with fundamental "solvency" imbalances. In real life,
this is not an easy distinction to make. The dilemma is solved, at the domestic level, by the
provision of eligible collateral. This may prove very uneasy for international liquidity:
transferring ownership of substantial amounts of sovereign assets between countries or to
international institutions would meet with huge legal and political difficulties.
This is the rationale for conditionality. But, of course, conditionality creates an uncertainty
which is incompatible with the purpose of instant supply of liquidity. A conditional facility will
never be a perfect substitute for reserves. Many countries fully eligible to the Flexible Credit
Line (FCL) have used foreign swaps instead. Anecdotal evidence suggests that swaps are
often perceived as carrying less of a stigma effect.
One way to deal with moral hazard would be to distinguish explicitly between two different
risks facing each country: on the one hand idiosyncratic risk, created by national policies and
country specific shocks; on the other hand, "systemic" risk stemming from aggregate liquidity
shocks occurring on a broader - global or regional - scale. Countries would self insure
against idiosyncratic risk by holding a sufficient amount of reserves. Protection against
systemic risk would come from a multilateral mechanism for international liquidity provision.
Of course, the distinction between idiosyncratic and systemic risk may be difficult and
involves a broad degree of judgment. But two basic rules should be guiding future work on a
multilateral safety net: (1) conditions for access should be specified ex ante; and (2) those
conditions should be fully delinked from the situation of individual economies. Rather, they
should depend on the state of the global economy and international financial markets. From
the point of view of an individual country, access should be fully unconditional, once global
conditions are met.
A considerable amount of work is currently devoted to devise instruments of contingent
capital for financial institutions in times of crisis. The same intellectual framework can be
extended to liquidity. What is needed is contingent liquidity i.e. liquidity available to nations in
times of aggregate shocks to the international financial system. This raises two questions:
where would such liquidity come from? How could it be mobilized?
As to the source, a possibility would be to create a process of periodic general allocation of
SDRs, according to a predetermined schedule. Those SDRs, however, would not be
immediately available for use by their beneficiaries. Rather, they would be "frozen" and
unblocked only in pre - specified circumstances (Landau, 2009). Criteria for use would not
be defined on the basis of individual countries' situations, but on consideration of the
conditions prevailing in the global economy and international capital markets. If properly
constructed, such a scheme may provide, for no cost, the kind of insurance that countries are
currently seeking by building excess reserves.
How would countries access to this new source of liquidity? The traditional approach would
allocate contingent liquidity to countries according to their quota shares in the IMF. However,
those are very imperfect representations of countries' liquidity needs especially in times of
crisis. Taking inspiration from the contingent capital literature, one could imagine that
countries could "buy" the access to contingent liquidity in crisis times by paying, in normal
times, a premium to the issuer (the IMF?). This could prove less costly than accumulating
excess reserves. Going one step further, and transposing an idea from Caballero and Kurlat
(2009), the IMF could issue tradable instruments giving access to contingent liquidity once it
has been activated. If broadly traded between public entities, the price of such instruments
would give a useful indication of underlying systemic tensions in international financial
markets.
Regional arrangements
Another approach would privilege regional arrangements either for pooling reserves or
redistributing them though permanent swap agreements. Asian countries, especially, are
working on and implementing progressively such schemes through the Chiang Mai initiative.
It should be noted that regional pooling is efficient only when countries are facing asymmetric
liquidity shocks within the region. Pooling brings no additional benefits when shocks occur on
a global scale and all countries are hit simultaneously. Also, regional arrangements cannot
avoid the moral hazard problem that all multilateral schemes are facing.
Nevertheless, there seems to be considerable scope for regional arrangements to prosper in
the future. First, they can act as useful complements to more global schemes and be
articulated with (and supported by) IMF facilities. Second, one can expect regional financial
integration to progress, especially in those parts of the world where huge pools of savings
are available and currently intermediated through financial systems located outside the
region. With deeper financial integration, the probability of significant portfolio shifts inside
one region increases markedly, creating the potential for asymmetric liquidity shocks. The
development of regional liquidity arrangements may appear very useful to underpin the
development of regional financial markets.
Stores of value
One consequence of the crisis has been to cast doubts on the ability of some assets, up to
now considered as riskless, to serve as reliable stores of value. The ability of the private
sector to create "safe" assets through financial innovation has proved largely illusory
(Caballero, 2009). So, in the period to come there may be both an increased demand
worldwide for risk free assets and much less certainty on their future supply.
The search for a liquid instrument which would also provide a reliable international store of
value has been going on for many decades. When discussions were held to build the Bretton
Woods system, Keynes proposed the creation of a new international currency, the "Bancor"
which could serve both as a source of liquidity and a store of value. Thirty years ago, there
was extensive discussion in the IMF on the creation of a substitution account. This was a
mechanism through which countries could exchange their reserve currencies against SDRs,
and get a protection against exchange rate risk. Most recently, Governor Zhu has reopened
the debate and suggested, over the long run, the creation of a new "super reserve" currency,
while, in the meantime, enhancing the role and status of the SDR.
There are good arguments to create international instruments providing a reliable store of
value:

First, the safer investors feel about the risk-return profile of their holdings, the bigger
the exposures they are prepared to accept. In that way, structural characteristics of
the International Monetary System have an influence on the sustainability of global
imbalances.
 Second, once uncertainty on relative values settles in, it would likely be
accompanied by extreme volatility as investors, whether public or private, constantly
reshuffle their existing portfolios between countries and currencies in order to
manage their exposure.

Finally, and most important, many oil and commodity producers face an
intertemporal choice between extracting resources and keeping them on or under
the ground. According to standard economic reasoning (the Hotelling rule), one
important determinant is the return earned on financial assets, to be compared to
the expected commodity price increase over the long run. The possibility of large
valuation losses on financial assets makes it optimal to reduce the rate of extraction,
which would durably lower the supply of oil and other commodities.
However, there are also practical and conceptual difficulties:

A choice would have to be made as to the true nature of the "super reserve
currency". Would it be a basket of existing monies or a new "fiat" currency? If the
"super reserve" is a basket of existing currencies (such as the SDR today) it would
basically serve as an instrument for diversification of foreign exchange reserves (or
private portfolios), and such a diversification can easily be achieved by using
existing currencies. On the other hand, the "super sovereign" could be issued as
such as a fiat currency. Then, the international community would have a basic
choice. Either the new currency could be made "strong" and never depreciate
against any other major existing currencies, which probably means that its supply
would be severely restricted. Or, the "super sovereign" would be issued according to
pre-specified rules, and depreciation against existing currencies could not be
excluded. It would ensure regular supply of international liquidity, but could only
provide partial protection against exchange rate volatility and valuation losses.
There is an important trade off, there, which is the essence of a new "Triffin
dilemma" and which cannot be avoided when looking at the public supply of
international liquidity, whether by one nation or within a multilateral framework.

More fundamentally, a new currency which would provide a reliable store of value
would, in fact, grant its holders a collective guarantee against exchange risk. That
guarantee would benefit surplus countries and would be given by deficit countries.
This issue was intensely debated when the substitution account was discussed and
negotiated within the IMF, more than 25 years ago. It became clear, at the time that
it would not be accepted by many countries unless some explicit, binding and
symmetric rules on balance of payment adjustments were agreed upon
simultaneously. Most likely, those questions would be raised again today and the
creation of a new reserve currency would have to be part of a broader framework.
Conclusion and provisional policy lessons
Looking at the next decade, one can project two alternative - and polar - scenarios for the
evolution of the international financial system.
First, a scenario of progressive and partial fragmentation: no significant capital account
opening would occur in many parts of the world. On the contrary, new barriers could be
erected either in the form of capital controls or through national regulations forcing financial
institutions to ring fence local pools of capital and liquidity. There would be little convergence
in domestic financial systems and regulations. Foreign exchange reserves would keep
growing, both in absolute and in percentage of world GDP.
This scenario may be seen as the only realistic response to increased diversity in a
multipolar world. Such an evolution could also be defended on the ground that the assumed
benefits of financial harmonization and integration have not really materialized (Rodrik et al.
2008). Furthermore, the crisis has shown that no financial system can claim to be intrinsically
superior and countries could feel justified in adopting and promoting their own models.
The systemic consequences, however, are not clear. In such a world, current account
imbalances would be heavily influenced by public actions and policies. Regulatory
competition would dominate the localization of financial activities and the allocation of
savings. In the absence of some "rules of the game", tensions would naturally arise between
countries, most likely through conflicts about exchange rate regimes and policies.
An opposite scenario would see the progressive opening of all capital accounts, together with
some (more or less intensive) convergence in financial systems and regulations. This would
allow for the emergence of a unified world capital market, an efficient allocation of savings
across countries and a smooth financing of current account imbalances. Such a scenario
could prove attractive both for capital exporters (through better returns on excess savings)
and capital importers, which may not have the option of isolating themselves from
international capital markets anyway.
Experience shows, however, that an open international financial system is not inherently
stable and, therefore, very dependent on a strong infrastructures and conditions. The move
towards a financially open world would, at the very least, have to be supported by robust
arrangements on international liquidity provision.
Pending ambitious reforms, a lot can still be done to provide investors with stable stores of
value. One very promising avenue would be, for countries which have surplus savings, to
develop their own internal stores of value by expanding the range of safe and liquid financial
assets available to domestic and international investors. By doing so, they would achieve
several goals at the same time. They would bring more efficiency in the financing of their own
domestic needs. They would provide their own investors with a broader range of choices.
They would also eliminate some of the currently existing incentives to export capital in order
to protect its value. They would contribute to reduce the "asset shortage" with all its negative
consequences, including international imbalances and the financing of asset bubbles.
Financial development in many countr