Issues in Reserves Adequacy and Management

Abstract

Issues in Reserves Adequacy and Management

I. Introduction1

1. Recent international financial crises have shown that holding and managing sufficient reserves and disclosing adequate information on them to markets helps a country to be able to prevent and weather external crises, especially those stemming from the capital account.2 The Fund has worked to assist its members in the assessment of reserve adequacy and in reserve management through three key initiatives: the focusing of reserve adequacy assessment on capital account vulnerability; the preparation of guidelines for foreign exchange reserve management; and the establishment of a standard for public disclosure of data on international reserves and liquidity (Box 1).3

Disclosure of Data on International Reserves and Foreign Currency Liquidity

Experience during the financial crises of the l990s demonstrated that timely and accurate disclosure of information on official reserves is critical to fostering early policy adjustment by country authorities and to allowing markets to assess risks In response, the Fund, in collaboration with the Committee on the Global Financial System of the Group of Ten central banks, developed a template, for disseminating data on international reserves and foreign currency liquidity. The template, which is part of the SDDS standard, provides for the comprehensive coverage of both assets and drains. It serves as a benchmark against which to assess the provision of reserves data to the Fund for the purpose of surveillance. All subscribers to the SDDS are now disseminating template data over their national websites. The Fund's website contains links to the data of all 49 SDDS subscribers and also redisseminates the template data of 43 countries in a common format.

At the time of the latest review of the Fund's data standards initiatives, the Executive Board agreed that the current prescriptions for monthly periodicity and monthly timeliness should be retained. The staff will be discussing with national authorities the difficulties associated with the dissemination of reserves data with weekly periodicity and timeliness. Directors asked the staff to report on this issue at the time of the next discussion on data provision to the Fund for surveillance around February 2002. 1/

1/The Fourth Review of Data Standards Initiatives (SM/01/208, 7/3/01) and the Acting Chairman's Summing Up on the Fourth Review of Data Standards Initiatives (BUFF/01/115, 7/31/01).

2. This paper presents the potential implications of focusing reserve adequacy assessment on the capital account for reserve management. It responds to the demands identified during recent outreach activities on reserve adequacy and is intended as background for the forthcoming Board discussion on the assessment of external vulnerability.4 Also, the Board has requested more work in the area of reserve adequacy as well as in identifying best practices in reserve management.5 The paper focuses on emerging market countries-although capital account vulnerability is key to reserve policy in any country with access to capital markets, emerging market countries face far greater uncertainties in this access than industrial countries. The purposes of the paper are twofold:

  • First, to summarize the capital account approach to assessing reserve adequacy in emerging market economies6 and describe outreach thus far on this topic (which has been conducted in close collaboration with the World Bank).

  • Second, to draw out and discuss technical implications of reserve adequacy considerations for reserve management, highlighting the case of emerging market economies. This builds, in part, on country practices (selected practices are highlighted in Box 2 and Appendix II), and is intended to assist countries in formulating strategies for investing reserve assets and managing risk, and to complement existing guidelines on reserve management.7

Capital Account Considerations in Determining Reserve Adequacy

Colombia

Following a severe crisis in the late 1990s, the Colombian authorities have redoubled efforts to identify measures, to help reduce external vulnerability. Besides the change to a flexible exchange rate regime, the authorities have revisited their approach to reserve adequacy. Specifically, after extensive consultations, the authorities have introduced a new approach for targeting reserve adequacy in which reserves cover short-term debt with a mark-up to reflect unfavorable macroeconomic fundamentals: i.e., the potential for an increasing current account deficit and real exchange rate appreciation. The former is especially critical for Colombia as it is a major commodity exporter. Augmentation of reserves for the potential increase in the current account is approximated using one standard deviation of the current account deficit as a measure of past variation. The authorities adopted this approach after a review of Fund work on reserve adequacy, and country-risk models of rating agencies, and major broker houses.1/ The authorities are now also considering bringing the currency composition of reserves closer in line with that of the stock of short-term debt (see below under reserve adequacy immunization).

Hungary

The National Bank of Hungary (NBH) conducts a systematic assessment of reserve adequacy and uses it as an input in its reserves and risk management guidelines approved annually by the NBH Board. The NBH pays particularly close attention to drains from the capital account and has quantified the potential drains, which it includes in the evaluation of the reserve level using techniques such as stress tests. The drains include: (i) short- term liabilities of the central bank; (ii) exposures from hedges of public debt; (iii) open foreignexchange positions of the banking and corporate sectors; and (iv) non-residents' holdings of government bonds and to a lesser extent equities (based on recent experience, in particular the 1998 Russian crisis). The data are updated monthly, in line with their availability, and the NBH Board reviews the parameters for this exercise annually. There is an institutional framework in place to bring the debt management perspective into the process of formulating the reserve policy. The NBH meets regularly with the Ministry of Finance and, if needed, can request public borrowing to meet reserve objectives.

1/ Research at the Fund finds that rating agencies pay increasing attention to the reserves-to-short-term debt ratio since the Asian crisis, Christian Mulder and Roberto Perrelli, Foreign Currency Sovereign Ratings in Emerging Market Countries, IMF Working Paper, 2001, forthcoming.

II. Reserve Adequacy Assessment with a Focus on the Capital Account

3. From a crisis prevention perspective, the most relevant indicator of reserve adequacy for emerging market countries is the ratio of international reserves to short- term external debt by remaining maturity.8 As a predictor and an explanation of the depth of recent emerging market crises, this ratio empirically outperforms other indicators, including ratios of reserves to imports or to broad money.9 For countries with uncertain access to capital markets, the Executive Board endorsed the use of a simple benchmark that targets the coverage of short-term external debt of all residents and in all instruments and currencies measured by remaining maturity.10 A country with a balanced current account and no capital flight will have sufficient reserves to honor its debt obligations for a full year even if inflows of portfolio and other capital cease and creditors refuse to roll over old debt. This benchmark, however, is only a starting point for the analysis.

4. Other factors have an impact on reserve adequacy as well. Higher levels of reserves would be preferable in countries with problematic characteristics-e.g., weak macroeconomic fundamentals (such as large external current account deficits that raise financing needs and overvalued exchange rates that can lead to capital outflows), high levels of short-term public domestic debt (especially where there are no effective capital controls or other mechanisms that create captive markets), derivative positions of the public sector, 11 and weak banking systems that can contribute to capital flight-although it will likely be difficult for such countries to build reserves. Considerations that limit the need for reserves include: the presence of a flexible exchange rate regime to stem capital flight;12 management of the actual exchange rate policy in a manner that discourages high foreign exchange exposure by the private sector; a public sector that borrows in domestic currency from non-residents, and can do so in case of liquidity need; conditions that ensure private sector access to foreign capital such as sound private sector risk management and banking supervision.13

5. To take such additional factors into account and allow a better understanding of the interaction between reserve adequacy, vulnerability, and country-specific factors and policies, the benchmarking of reserves to short-term debt should be complemented by stress testing of the balance of payments.14 Indeed, the ratio of one for reserves to short- term debt-in effect, a simple stress test of lack of market access for a year-is a sensible point of departure for more complex stress tests. More complex stress tests can reflect: different market access for each type of inflow (such as FDI or trade credit); the risk of capital flight;15 and the need to finance a current account deficit. Stress tests can use maximum historical variations as a basis for potential variations in specific balance of payments flows. They can also reflect the impact of shorter or longer periods of limited market access and the impact of adjustment measures on the current account. Results of these stress tests can serve as key inputs in the reserve adequacy analysis. (See for an example the discussion of Hungary's experience in Box 2).

6. Accurate measurement of current and capital account stocks and flows are critical to assessing reserve adequacy. In this regard, efforts are underway to help emerging market countries improve this information (including on the level and composition of private sector debt, see Box 1). In addition the application of the Data Quality Assessment Framework, developed by Fund staff, provides a standard diagnostic tool for evaluating the methodological soundness, accuracy and reliability of data on the current account, capital account and financial account of the balance of payments.16

7. The increased appreciation of the importance of reserves and the need to assess reserve adequacy is reflected in the fact that emerging market countries have raised their reserve holdings markedly in recent years. The ratio of reserves to short-term external debt has risen from about 100 percent at end-1997 to 180 percent at end-2000, reflecting both an increase in reserves and a decline in short-term debt. In terms of import cover, by end-2000, reserves in emerging market countries had risen to slightly over 6 months of imports on average (see Figure 1).

Figure 1.
Figure 1.

Reserves over Imports vs. Reserves over Short-Term Debt, Long-Run Trends 1/

Citation: Policy Papers 2001, 031; 10.5089/9781498327671.007.A001

1/ Short-term debt is based on the Joint BIS-IMF-OECD-World Bank external debt data (i.e., based on creditor side reporting) and includes claims by banks, and in the form of bonds and trade credits. It does not include other bilateral or multilateral obligations. Reserves include gold. The Reserves over imports data are unweighted averages. The reserves over short-term debt data are the median observations.

8. Feedback from outreach activities conducted by the Fund and World Bank on reserve adequacy issues has confirmed that emerging market countries generally support the focus of reserve adequacy on capital account vulnerability (Appendix II). In particular, they viewed the ratio of reserves to short-term debt as a useful indicator of reserve adequacy. Many emerging market countries have started to incorporate considerations pertaining to the capital account into their operational systems of reserve adequacy analysis (see Box 2). Discussions with country authorities suggest that, while the proposed approach to reserve adequacy analysis is generally relevant for emerging market countries, its practical application, particularly the selection of an appropriate benchmark and the design of stress tests, needs to be tailored to country-specific circumstances and to take into account the implications for reserve management.

9. Outreach also identified a need for further guidance on implications of focusing reserve adequacy assessment on the capital account for the management of reserves, notably the selection of benchmarks for portfolio composition in terms of asset classes and currencies. Reserve managers welcomed sharing new insights, experiences with implementing novel approaches, and best practices.

III. Implications for Reserve Management

10. Reserve adequacy analysis has important implications for the design of investment strategies and the management of risks. The potential interruption of capital market access poses special demands for reserve management, an issue that is especially important for emerging market countries. The implications described below are consistent with the recently approved guidelines for reserve management.17

A. Implications for Reserve Management Policies

11. The growing appreciation of the role of reserves in crisis prevention and as a buffer to manage exchange rate volatility has given reserve management a more central role in national economic policies. In many emerging market countries, greater efforts have been made to coordinate related policies, including external debt management, with reserve management. The determination of an adequate level of reserves, the means by which reserves are funded, and the policies that govern when and for what reasons reserves are used, require the development of a consistent set of supporting policies for reserve management (Appendix I and Box 3).18 In turn, this supports one of the principal aims of reserve adequacy-to promote and sustain internal and external market confidence in a nation's economic policies.

Policies and Institutional Arrangements that Support Reserve Management

An elucidation of objectives for holding reserves helps guide thedetermination of an adequate level of reserves and the overall strategy for the investment of reserve holdings (see Appendix I).As discussed in section III, for countries with less than certain access to international markets, holding adequate reserves can help to reduce external vulnerabilities. Reserve management strategies complement such objectives by ensuring that reserves are available when they are needed most.

Sustainable funding and sound financial arrangements are part of reserve management poiclies. Adequate reserve holdings need to be funded in a way that does not pressure the reserve manager to pursue unrealistically high returns. In emerging market economies in particular, the buffer of reserves may be sizeable in relation to the central bank's balance sheet. Accordingly, the cost of domestic monetary liabilities and foreign borrowings that fund reserves and their implication for the financial position of the central bank, need to be assessed, and reserve management policies underpinned by sound financial arrangements between the government and the central bank, that ensure the financial health of the reserve management entity, and by coordination with external debt management.

Countries that borrow on international markets to raise or supplme ent reserves have sought to both lower costs and diversify funding sources so as to ensure a stable funding base and bolster market confidence.1/ In addition to traditional syndicated borrowings on international markets, countries have expanded the range of programs; several countries, for instance, have developed Euro note programs and special programs for borrowing in US markets. Policies are also put in place to govern the spreads at which funds are borrowed and set limits for borrowing in order to assure that markets are not saturated and the country name, as issuer, retains its “scarcity value”.

Transparency and accountability have become an essential part of reserve management policy and strategies that also support market confidence 2/ Reserves management policies are critical for both the maintenance (security) of reserves and contributions (investment returns) to adequate reserve levels. As reserves are entrusted to the reserve manager (usually the central bank), the net income (or losses) that result from investment activities undertaken by the reserve manager have warranted regular explanation (usually found in annual reports) to help ensure the credibility and sustainability of reserve management policies. The Fund's Data Template on International Reserves and Foreign Currency Liquidity provides a regular and transparent standard for the reporting of the market values of reserve assets.

1/ Ideally reserve levels and reserve management strategies are determined within an explicit cost-benefit framework. However, while benefits are great, they are difficult to quantify. Therefore, the general approach above emphasizes adequate rather than optimal reserve levels. This does not mean that costs are not important, but these considerations would need to be reflected in country specific reviews of benefits and costs.2/ See paragraph 23 of the Guidelines for Foreign Exchange Reserve Management, (SM/ 01/264, 8/17/01).

B. Considerations Affecting Reserve Management Strategies

12. A range of factors affecting the adequacy of reserves-including the volatility of capital flows, the size and composition of external debt, the cost of borrowing, market confidence, and the stage of development of domestic foreign exchange markets-influences both reserve management policies and the parameters that determine the investment of reserves, as highlighted below.

13. The determination of the highly liquid portion of reserves builds upon the assessment of external risks and potential volatility of capital flows, undertaken as part of determining the overall level of reserves adequacy. It has been argued that the more adequate the reserves are, the less likely they would be called upon and thus the smaller the proportion of reserves that would need to be invested in highly liquid assets.19 20

14. To determine the proportion of highly liquid assets, therefore, many central banks analyze potential liquidity needs based on past interventions and stress tests of worst case scenarios. Different scenarios may be used to construct a range of probable outcomes that could help identify the share of highly liquid assets that the central bank would hold for a given confidence level. The capital account framework for the assessment of reserve adequacy suggests that the extent of liquidity within reserve assets needs to be based especially on the impact of a potential closure of access to international capital markets for those countries that have less than fully certain access.

15. A factor in determining the liquid portion of reserves is the level of intervention capacity needed to address conditions of excessive volatility in exchange markets. In the case of developing and emerging market countries where foreign exchange markets in the domestic currency are underdeveloped, the capacity of these markets to bear shocks is limited and they are prone to becoming dysfunctional under stress. Dealers and participants may withdraw from the foreign exchange market leading to a widening in bid-ask spreads or one-sided and disorderly conditions. Therefore, sufficient liquid reserves, which can be rapidly called upon by the central bank, are needed to support intervention policy consistent with the exchange rate regime.21

16. As part of liquidity management, reserve managers generally hold a portion of reserves in cash (or near cash) in order to ensure that foreign currency is available to meet maturing liabilities of the central bank, and other liabilities and contingencies. 22 Such cash management operations can also be facilitated by the issuance of short-term liabilities or derivative instruments such as swaps (against domestic currency). However, the use of such funding mechanisms, especially by emerging market economies, has its own risks: it may not be available during times of market stress and may lead to an erosion in market confidence.23

17. The determination of the choice of allowable assets and their weighting in the reserve portfolio, should take into consideration the performance of various assets in extreme market conditions. Experience suggests that central banks of emerging market countries may particularly need reserve assets at times of turmoil and stress in international financial markets. Such occasions are marked by sudden shifts in investor preferences and risk appetite, causing both market volatility and liquidity risks to rise. Under such conditions, some asset classes cannot be readily transformed into cash at fair market prices because of: widening spreads between bid and ask rates that increase transaction costs; thinning market conditions that make it difficult to sell the desired amount of securities; drying up of funding available in markets for repurchase agreements; and widening spread differentials between various asset classes as risk preferences change. Traditional measures of risk and return do not evaluate these risks well under extreme conditions. Historic data on returns suggest that highly rated securities perform relative well under such conditions. Therefore, the allocation of a portfolio across asset classes should incorporate considerations of both liquidity characteristics and access to markets in and out of crisis periods (Box 4).

Assessment of Market Liquidity and Return Risks

Assessments made by central banks and others confirm that under conditions ofmarket stress, the liquidity and performance of securities differsfrom normal times. For example, an assessment of U.S. securities markets under extreme conditions, presented at a recent policy forum on reserves co-hosted by the Fund and the World Bank, shows that transactions costs increase for all securities but disproportionately for lower quality asset classes and assets that trade in less deep and less liquid markets (Table 1a). As a result, liquidity may be less available for some reserve assets when it may be needed the most. In crisis periods, market volatility increased but less so for higher quality assets. During recent crises in emerging market countries (the Tequila crisis in 1994, the Asian crisis in 1997, and the Russian crisis in 1998), high quality U.S. securities benefited from a flight to quality.

Table 1a.

Securities Comparison: Execution Risk and Liquidity Raising Properties

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Source: Hong Kong Monetary Authority.

Table 1b shows that returns increased substantially across U.S. government and agency securities. The analysis suggests that higher quality assets perform well or better than lower quality assets, and that such assets are also supported by deeper markets and have lower execution risks. It was also noted that the performance of instruments would vary depending on the type of crisis. (For instance, during crises in the 1990s, U.S. Treasuries benefited from a flight to quality; however, during the 1970s, a period of high inflation, longer maturity U.S. Treasuries performed particularly poorly.) Such analysis can be used as an input into the determination of the trade off between risk and return and as a determinant of highly liquid assets.

Table 1b.

Securities Comparison: Normal Versus Crisis Periods 1/

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Source: The World Bank

These statistics are derived from weekly data and annualized for presentation. Asset groups classified by maturity are not fully comparable owing to differences in the average duration within the asset groups.

18. The selection of the benchmark for the currency composition of reserve assets depends closely on the approach to determining reserve adequacy. Where reserves are held to provide adequate coverage of short-term (private and public) debt-as discussed in Section III of this paper-reserves might be held in the same proportion of currencies as is reflected in the denomination of short-term debt in order to avoid fluctuations in reserve coverage of short-term debt arising from changes in currency cross rates.24 Of course, there are complicating factors that need to be taken into account. Private borrowers use of derivatives can alter the currency exposure of external liabilities, while information on the levels of private external debt, maturities, and currency exposures may not be complete, complicating the implementation of the above strategy.25 Furthermore, countries may take broader considerations into account, including currency exposures that may arise from domestic capital flight, the exchange rate regime and whether the peg overweights a specific currency compared to the current and capital account composition, and other country-specific circumstances, such as the financial risk management capabilities of private and public sectors. Various common approaches to reserve composition are highlighted in Box 5.

Currency Composition of Reserves

The strategy for determining the currency composition of reserve assets is related to the purpose for which reserves are held and the maintenance of reserve adequacy.

Short-term debt coverage approach

Countries that have begun to focus on holding reserves to cover short-term debt as a proxy for the main capital account risks, might therefore hold the currency composition of reserve assets in the same proportion as that of short-term debt (see also footnote 18). Accordingly, reserve coverage would be insulated from movements in cross currency exchange rates.

Other approaches to the determination of currency composition include:

  • Optimization/diversification approach

  • Exchange rate movements and interest rate differentials are the main factors determining returns and risks. Thus, some reserves managers, especially those in industrial countries, focus on risk and return assessments in determining the strategic allocation of reserves across assets and currencies, as do portfolio managers. Accordingly, reserve assets are typically held in more than a single currency in order to enjoy the benefits of increased diversification (of currencies and assets). An optimization process, using historic parameters, determines the benchmark investment portfolio.

  • Purchasing power approach

  • Some countries, in particular those that lack access to capital markets to adjust to shocks in the current account, and whose future imports or external debt payments are denominated heavily in a single currency or a few currencies, might take into account the foreign currency denomination of these imports and debt payments when constructing a currency benchmark. This approach seeks to maintain the purchasing power of reserves in terms of obligations.

  • Cost-of-carry approach

  • In countries where reserves are borrowed, the investment objective frequently is to minimize the cost of carry on those reserves while keeping strict risk limits on the net reserve position. Accordingly, investments may be matched with the foreign liabilities funding those assets in terms of duration (a measure of interest rate risk) and currency composition.

19. As a country increases reserve holdings sufficiently to cushion against the identified external vulnerabilities, investment strategies may put greater emphasis on seeking higher returns over medium to longer runs, in addition to preserving capital and ensuring liquidity. The more adequate reserves are, even in the presence of adverse shocks, the higher the proportion that can be invested with a longer-term outlook, as the cushion to accept short- term price volatility is larger and the risk of bearing potential liquidation costs are lower. Earning adequate returns over the medium-term is an essential element of sustainable reserve management policies. As reserves have increased in size, reserve managers have tended to diversify across different asset classes in a search of higher returns within well-defined and prudent risk limits.26 Some of the implications of higher reserves for investment strategies are highlighted in Box 6.

Implications of Higher Reserve Levels for the Investment Strategy

Higher reserves levels as well as structural changes in traditional markets for reserve assets have prompted several reserve managers to reassess eligible investments and “widen the credit net1/ Reserve managers have sought to diversify asset classes in a search of higher returns within well-defined risk limits. Moreover, a concentration of reserves in single asset classes, even if of a high quality, for example, U.S. Treasuries, has been found to increase risks of idiosyncratic changes in securities prices and liquidity conditions. 2/ Also, with the stock of U.S. Treasuries shrinking and the spread to other asset classes widening, reserve managers have been encouraged to switch to higher yielding investments. Several central banks, for instance, have expanded eligible asset classes for U.S. dollar investments to a range of sovereign issuers, and supranational agencies and are exploring investments in asset-backed securities.

Lengthening of the average duration has generally been associated with rising reserve levels As reserve managers have accumulated larger reserves, their policies have generally increased the average acceptable duration. With a positively sloping yield curve, higher returns are normally associated with longer duration as a reward for assuming more interest rate risk.

The development of repo, swap and derivative markets has opened new avenues for central banks to manage liquidity when conditions in the market are not conducive to disposal of assets. Access to these markets provides reserve managers with greater comfort in seeking higher returns of longer maturity and duration assets. Currency swaps have enabled central banks to make decisions on currency composition based on risk/return considerations and provided flexibility in tapping various markets for funding.

Countries with well-developed risk management frameworks and experienced market personnel have, in some cases, allowed reserve managers limited leeway in exercising discretionary judgment on the investments of reserve assets “Active” portfolio management can result in added gains or losses in relation to the strategic allocation of reserve assets embodied in the benchmark portfolio. Such activities should be approved at the highest level of central bank management and monitored closely. The total return is determined by setting the benchmark with only marginal deviations permitted for active management.

1/ The term “credit net” refers to the level of credit risk of the type of issuer that is eligible to be included in reserves investments.2/ See International Capital Markets Report: Developments, Prospects and Key Policy Issues, World Economic and Financial Surveys, International Monetary Fund, 2001 (July).

20. Most of the implications of reserve adequacy for reserve asset management outlined above are relevant for all member countries. In particular, the principles determining the liquid portion, selection and allocation of asset classes, and the risk-return tradeoff is fairly general. However, the derivation of currency composition based on specific considerations of reserve adequacy is less widely applicable as short-term debt is only a starting point for the countries with significant but uncertain access to capital markets. Reserve management issues pertaining to countries with little or no access to capital markets are highlighted in Box 7.

Reserve Adequacy and Implications for Reserve Management for Countries with Limited or No Access to Capital Markets

Countries that in the main do not have access to private foreign capital reserve management practices are less affected by the capital account based insights on reserve adequacy. However, limited access to private markets does mean that a country needs to rely more on its own resources (i.e., reserves) than on international borrowing to smooth adjustment to shocks. The potential for such shocks is thus a key ingredient in the setting of reserve goals for this group of countries.

Traditionally, three months' coverage was often used as a rule of thumb to assess adequacy, and the question arises if this measure is still applicable. While such a measure of the import coverage provides some basic indication of the degree of volatility that can be covered, it does not provide much insight into the potential of shocks. This potential for shocks is often high for this group, as it includes many countries that are heavily dependent on agricultural production and commodity exports. Therefore it is essential to supplement basic import coverage measures with analysis of past volatility and the potential of shocks that affectucrrent account flows:

  • Measures of the past volatility are provided by the changes in reserves experienced at times of large shocks and by statistical concepts such as the standard deviation of the level of reserves.

  • The impact of potential shocks can be examined using stress tests. For instance commodity producers can use potential ranges for commodity prices and their experience with the impact of such shocks on other flows to assess the expected change in reserves and the need for a buffer. Countries with important tourist revenue or workers remittances can also take potential shocks to these revenue sources into account. A key aspect here is review whether shocks to various line items are likely to coincide or offset each other.

Moreover, capital account transactions such as debt payments, while limited, tend to be relatively predictable for these countries and, some coordination of debt with reserve management is likely to be helpful. So would some consideration of the volatility of aid inflows. Even with long-term concessional debt, reserve mangers will still want to plan ahead-e.g., to take account of any maturity bunching in repayment schedules, and possible delays in concessional cash loan disbursements. As regards currency composition of reserves, the currency composition of current payments would presumably continue to be the most important factor, outweighing the influence of the currency composition of debt servicing.

C. Implications for Risk Management

21. Higher reserve levels, expanding asset classes, more sophisticated financial instruments, and more volatile financial markets, all increase the need for more sophisticated frameworks for risk management. 27 In response, central banks in many emerging countries are adopting modern risk management techniques, including the stress testing of portfolios. A sophisticated risk management framework and the means to monitor risk positions are essential for those central banks that practice more active strategies.

IV. Conclusion

22. Outreach conducted by the staff suggests reserve adequacy assessment that focuses on capital account vulnerability is a useful framework for evaluating reserves in the presence of uncertain access to capital markets. This approach to reserve adequacy assessment has implications for management of reserves, including the selection of assets in the reserve portfolio and currency composition, particularly a closer alignment of currency composition with debt obligations and other potential capital account needs. Clearly, no single investment strategy will suit all countries or even groups of countries. Making appropriate judgments in setting the investment strategy involves assessing vulnerabilities and their implications for the use of reserves in a country-specific context.

23. More work in this area is needed. Staff envisage further work on the factors that influence appropriate reserve levels and ratios. Staff also plan to collaborate with reserve managers from member countries, the World Bank, and other international institutions to develop and share insights gained from different approaches to reserve management. Coordination of reserve management policies with the management of external debt, as part of overall liquidity management, will also be explored. In addition, the development of a supporting document for the guidelines on reserve management is intended to provide a wealth of information on best practices in reserve management. This ongoing work will be useful in underpinning technical assistance on reserve portfolio management.28

Issues in Reserves Adequacy and Management
Author: International Monetary Fund