Peer Group Ratio Comparison

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Chapter 21 Managing Liquidity Risk on the Balance Sheet 633

and lending these funds to the borrower) or by stored liquidity management (decreasing the DI’s excess cash assets from $9 million to $4 million). We present balance sheets that result from each of these two policies in Table 21–7 .

Measuring a Bank’s Liquidity Exposure

Having discussed the sources of liquidity risk for a DI, we next look at several methods currently used to measure the extent of a DI’s liquidity risk exposure. These methods take into account the DI’s excess cash reserves and its ability to raise additional purchased funds. Appendix 21A (located at the book’s Web site, www.mhhe.com/sc5e) looks at two additional measures of liquidity risk that will be used by DI regulators beginning in the mid- and late-2010s to evaluate DIs’ exposure to liquidity risk.

Sources and Uses of Liquidity. As discussed above, a DI’s liquidity risk arises from the ongoing conducting of business, such as a withdrawal of deposits or new loan demand, and the subsequent need to meet these demands by liquidating assets or borrowing funds. Therefore, a DI manager must be able to measure the DI’s liquidity position on a daily basis, if possible. A useful tool is a net liquidity statement, which lists sources and uses of liquidity and, thus, provides a measure of a DI’s net liquidity position. Such a statement for a hypothetical U.S. bank is presented in Table 21–8 .

The DI can obtain liquid funds in three ways. First, it can sell its liquid assets such as T-bills immediately with little price risk and low transaction costs. Second, it can borrow funds in the money/purchased funds market up to a maximum amount (this is an internal guideline based on the manager’s assessment of the credit limits that the purchased or borrowed funds market is likely to impose on the bank). Third, it can use any excess cash reserves over and above the amount held to meet regulatory imposed reserve requirements. In Table 21–8 , the DI’s sources of liquidity total $14,500 million. Compare this to the DI’s uses of liquidity—in particular, the amount of borrowed or purchased funds it has already utilized (e.g., fed funds, RPs borrowed) and the amount of cash it has already borrowed from the Federal Reserve through discount window loans. These total $7,000 million. As a

LG 21-3LG 21-3

TABLE 21–8 Net Liquidity Position (in millions)

Sources of Liquidity

1. Total cash-type assets $ 2,000 2. Maximum borrowed funds limit 12,000 3. Excess cash reserves 500

Total $14,500

Uses of Liquidity

1. Funds borrowed $ 6,000 2. Federal Reserve borrowing 1,000

Total $ 7,000 Total net liquidity $ 7,500

TABLE 21–7 Adjusting the Balance Sheet to a Loan Commitment Exercise (in millions)

Purchased Liquidity Management Stored Liquidity Management

Cash assets $ 9 Deposits $ 70 Cash assets $ 4 Deposits $ 70 Nonliquid assets 96 Borrowed funds 15 Nonliquid assets 96 Borrowed funds 10

Equity 20 Equity 20

$105 $105 $100 $100

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註解
在讨论了DI的流动性风险来源之后,我们接下来看看目前用来衡量DI的流动性风险暴露程度的几种方法。这些方法考虑到了DI的超额现金储备和它筹集额外购买资金的能力。附录21A(位于本书的网站www.mhhe.com/sc5e)考察了另外两项流动性风险衡量指标,从2010年代中期开始,DI监管机构将使用这两项指标来评估DIs对流动性风险的敞口。
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註解
流动资金的来源和用途。 如上所述,DI的流动性风险源于业务的持续开展,例如提取存款或新的贷款需求,以及随后需要通过清算资产或借入资金来满足这些需求。 因此,DI经理必须能够每天测量DI的流动性头寸。 净流动性报表是一个有用的工具,它列出了流动性的来源和用途,从而提供了DI净流动性头寸的度量。 表21–8给出了针对假设的美国银行的此类声明。 DI可以通过三种方式获得流动资金。首先,它可以立即出售国债等流动性资产,价格风险小,交易成本低。其次,它可以在货币/购买基金市场上借入最高额度的资金(这是一个内部指导方针,基于基金经理对购买或购买基金市场可能施加给银行的信贷限额的评估)。第三,它可以使用任何超出其持有金额的超额现金储备来满足监管规定的准备金要求。在表21-8中,DI的流动资金来源总额为145亿美元。将此与DI对流动性的使用相比较——特别是它已经使用的借入或购买的资金(例如,联邦基金,RPs借入)以及它已经通过贴现窗口贷款从美联储借入的现金。总共70亿美元。因此,DI的净流动性为正7.75亿美元。这些流动资金的来源和用途可以很容易地逐日追踪。

634 Part 5 Risk Management in Financial Institutions

result, the DI has a positive net liquidity position of $7,500 million. These liquidity sources and uses can be tracked easily on a day-by-day basis.

The net liquidity position in Table 21–8 lists management’s expected sources and uses of liquidity for a hypothetical bank. All DIs report their historical sources and uses of liquidity in their annual and quarterly reports. Appendix 21B to this chapter (located at the book’s Web site, www.mhhe.com/sc5e ) presents the June 2010 Sources and Uses of Funds Statement for Bank of America. As a DI manager deals with liquidity risk, historical sources and uses of liquidity statements can be useful tools for determining where future liquidity issues may arise.

Peer Group Ratio Comparisons. Another way to measure a DI’s liquidity exposure is to compare certain of its key ratios and balance sheet features—such as loans to deposits, core deposits to total assets, borrowed funds to total assets, and commitments to lend to assets ratios—with those for DIs of a similar size and geographic location (see Chapter 12 ). A high ratio of loans to deposits and borrowed funds to total assets and/or a low ratio of core deposits to total assets means that the DI relies heavily on the short-term money mar- ket rather than on core deposits to fund loans. This could mean future liquidity problems if the DI is at or near its borrowing limits in the purchased funds market. Similarly, a high ratio of loan commitments to assets indicates the need for a high degree of liquidity to fund any unexpected takedowns of these loans by customers—thus, high-commitment DIs often face more liquidity risk exposure than do low-commitment DIs.

Table 21–9 lists the 2010 values of these ratios for the banks we reviewed in Chapter 12 : Webster Financial Corporation (WBS) and Bank of America Corporation (BAC). Neither of these banks relied heavily on borrowed funds (short-term money market instruments) to fund loans. Their ratio of borrowed funds to total assets was 17.41 percent and 27.96 percent, respec- tively. Their ratio of core deposits (the stable deposits of the DI, such as demand deposits, NOW accounts, MMDAs, other savings accounts, and retail CDs) to total assets, on the other hand, was 70.54 percent and 57.20 percent, respectively. As a major money center bank, Bank of America gets more of its liquid funds from the borrowed funds markets than core deposit mar- kets. Webster Financial, a smaller, consumer-oriented bank, uses core deposits much more than borrowed funds to get its liquid funds. The result is that Bank of America is subject to greater liquidity risk than Webster Financial. Furthermore, WBS had a ratio of loan commitments to total assets of only 20.40 percent, while BAC had a much greater ratio of 70.48 percent. If these commitments are “taken down” (see Chapters 11 and 19 ), BAC must come up with the cash to fulfill these commitments, more so than WBS. Thus, BAC was exposed to substantially greater liquidity risk from unexpected takedowns of these commitments.

Liquidity Index. A third way to measure liquidity risk is to use a liquidity index . This index measures the potential losses a DI could suffer from a sudden or fire-sale disposal of assets compared to the amount it would receive at a fair market value established under normal mar- ket conditions. The larger the differences between immediate fire-sale asset prices ( P i ) and fair market prices ( P i

* ), the less liquid is the DI’s portfolio of assets. Define an index I such that:

I /! " !i

N

i i iw P P 1 [( )( )]*

liquidity index A measure of the potential losses a DI could suffer as the result of a sudden (or fire-sale) disposal of assets.

liquidity index A measure of the potential losses a DI could suffer as the result of a sudden (or fire-sale) disposal of assets.

TABLE 21–9 Liquidity Exposure Ratios for Two DIs

Webster Financial Bank of Corp. America

Borrowed funds to total assets 17.41% 27.96% Core deposits to total assets 70.54 57.20 Loans to deposits 76.42 84.06 Commitments to lend to total assets 20.40 70.48

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表21–8中的净流动资金状况列出了管理层的假设来源和假设银行的流动资金用途。 所有直接投资都在年度和季度报告中报告其历史来源和流动性使用情况。 本章的附录21B(位于本书的网站www.mhhe.com/sc5e上)介绍了2010年6月美国银行的资金来源和用途表。 当直接投资经理处理流动性风险时,流动性报表的历史来源和用途可以作为确定未来可能发生流动性问题的有用工具。