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Comparing Budgetary and Trust Fund Measures of the Outlook for Social Security and Medicare 1 (October 2003)

handle is hein.congrec/cbo8311 and id is 1 raw text is: Aseries of issue summaries from
the Congressional Budget Office
No. 10, OCTOBER 10, 2003
Comparing Budgetary and Trust Fund Measures of the
Outlook for Soci'al Security and Medicare

The most comprehensive view of the financial outlook for
Social Security and Medicare comes from estimating the
resources that the federal government would need to draw
for the programs from the nation's economic output-that
is, the share of gross domestic product (GDP) that they
would consume. That type of measure is conventionally
used for the federal budget as a whole. In contrast, the re-
ports of the Social Security and Medicare trustees are re-
quired by law to focus on the status of the trust fund ac-
counts that the Treasury Department maintains for the
programs and to indicate whether the Congress has granted
them sufficient spending authority to cover their expected
payments.
The concepts employed in the trustees' assessments, such as
trust fund reserves and actuarial balance, illuminate the pro-
grams' accounting, but not the real economic resources
they require. First, because the assessments are based on
measures of income and spending that are effectively aver-
aged over 75 years, they do not reveal the magnitude of the
programs' rising resource requirements. Second, they treat
transfers from the government's general fund to the trust
funds and the reserves of the funds as resources to pay ben-
efits. However, those transfers and fund reserves are simply
the result of credits exchanged between Treasury accounts
-and thus reflect the government's commitment to pay
the benefits but not necessarily the means to do so.
Although the trustees are required to focus on the status of
the trust fund accounts and to base their conclusions on
trust fund measures, in recent years they have increasingly
brought attention to the growing impact of Social Security
and Medicare on the economy. When the future resource
requirements of the two programs are shown year by year
as a share of GDP, they more than double by 2075, rising
from 6.9 percent of GDP today to a projected 16 percent
in 2075 (see Figure 1). In contrast, when shown using sum-
marized trust fund measures, taxes for Social Security and
th Hopta Inurance-HI) rtofMed-IcarewoulInee

to be only one-fourth larger than currently scheduled to
restore actuarial balance-an amount less than 2 percent of
GDP, on average (see Figure 2). Furthermore, no imbalance
is shown for the Supplementary Medical Insurance (SMI)
part of Medicare, even though its costs are projected to rise
from 1 percent of GDP today to 4 percent in 2075 and
three-fourths of its financing is drawn from   the Treasury')s
general fund.'
Presenting the financial implications of Social Security and
Medicare as they are projected to change over time using
the broadest financial denominator-their relative share of
gross domestic product-allows for a fuller and more trans-
parent view of their growing impact on the economy.
What Trust Fund Measures Show
When the Social Security and Hospital Insurance trust
funds' total income over the following 75 years is estimated
to be within 5 percent of their total expenditures, the funds
are considered to be financially sound-or in close actuarial
balance.2 Having reserves credited to the funds throughout
1. The Medicare program has two parts. Hospital Insurance, or Part A,
helps pay for inpatient hospital care, home health care, skilled nurs-
ing, and hospice care for the aged and disabled. Supplementary Medi-
cal Insurance, or Part B, helps pay for physicians' services, outpatient
hospital care, and other services.
2. The Social Security and Medicare trustees employ other tests of actu-
arial balance, but the 75-year summary measure receives the most
attention. They also provide supplementary estimates of the pro-
grams' rising share of GDP, but their conclusions about actuarial
balance stem primarily from summarized averages of the trust funds'
income and expenditures. See Social Security Administration, The
2003 Annual Report of the Board of Trustees of the Federal Old-Age and
Survivors Insurance and Disability Insurance Trust Funds (March 17,
2003); and Centers for Medicare and Medicaid Services, The 2003
Annual Report of the Board of Trustees of the Federal Hosp ital Insurance
and Federal Supplementary Medical Insurance Trust Funds (March 17,

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