2001 OASDI Trustees Report
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2. Estimates as a Percentage of Gross Domestic Product

This section presents long-range projections of the operations of the combined Old-Age and Survivors Insurance and Disability Insurance (OASI and DI) Trust Funds and of the Hospital Insurance (HI) Trust Fund expressed as a percentage of gross domestic product (GDP). While expressing these fund operations as a percentage of taxable payroll is the most useful approach for assessing the financial status of the programs (see table IV.B1 and section IV.B.1), analyzing them as a percentage of GDP provides an additional perspective on these fund operations in relation to the total value of goods and services produced in the United States.

Table VI.E5 shows estimated income excluding interest, total outgo, and the resulting balance of the combined OASI and DI Trust Funds, of the HI Trust Fund, and of the combined OASI, DI, and HI Trust Funds, expressed as percentages of GDP on the basis of each of the three alternative sets of assumptions. The estimated GDP on which these percentages are based is also shown in table VI.E5. For OASDI, income excluding interest consists of payroll-tax contributions, proceeds from taxation of benefits, and various reimbursements from the general fund of the Treasury. Total outgo consists of benefit payments, administrative expenses, net transfers from the trust funds to the Railroad Retirement program, and payments for vocational rehabilitation services for disabled beneficiaries. For HI, income excluding interest consists of payroll-tax contributions (including contributions from railroad employment), proceeds from taxation of OASDI benefits, and payments from the general fund of the Treasury for contributions on deemed wage credits for military service. Total outgo consists of outlays (benefits and administrative expenses) for insured beneficiaries. Both the HI income and outgo are on an incurred basis.

The OASDI balance (income excluding interest, less outgo) as a percentage of GDP is projected to be positive on the basis of the low cost alternative I until 2020. After 2019, deficits increase to a peak in about 2039, and decrease thereafter. The OASDI balance is projected to be positive until 2016 on the basis of the intermediate alternative II and until 2012 on the basis of the high cost alternative III, at which time balances become permanently negative, with generally increasing deficits. The projected HI balance as a percentage of GDP, is positive until 2045 on the basis of the low cost alternative I. The HI balance is projected to remain positive until about 2016 under the intermediate alternative and 2007 under the high cost alternative, with deficits increasing steadily thereafter. The combined OASDI and HI balance as a percentage of GDP is projected to be positive until 2023 under the low cost alternative I, until 2016 under the intermediate alternative II, and until 2010 under the high cost alternative III. Between 2010 and about 2035, under all three alternatives, both the OASDI and HI balances as percentages of GDP are projected to decline (or deficits increase) substantially because the baby-boom generation reaches retirement age during these years. After balances cease to be positive under the intermediate and high cost alternatives, the size of annual deficits increases fairly steadily for the OASDI and HI programs, both separately and combined.

By 2075, the combined OASDI and HI balances as percentages of GDP, based on the three alternatives, are projected to differ by a relatively large amount: from a deficit of 1.20 percent for the low cost alternative I to a deficit of 12.26 percent for the high cost alternative III. Projected balances differ by a much smaller amount by the tenth year, 2010, from a positive balance of 1.31 percent for the low cost alternative I to a deficit of 0.07 percent for the high cost alternative III.

The summarized long-range (75-year) balance as a percentage of GDP for the combined OASDI and HI programs varies by a relatively large amount (from a positive 0.28 percent, based on the low cost alternative I, to a deficit of 4.64 percent, based on the high cost alternative III). The 25-year summarized balance varies by a smaller amount (from a positive 1.22 percent to a deficit of 0.64 percent). Summarized rates are calculated on the present-value basis including the trust fund balances on January 1, 2001 and the cost of reaching and maintaining a target trust fund level equal to 100 percent of annual expenditures by the end of the period. (See section IV.B.4 for further explanation.)

Table VI.E5.- OASDI and HI Annual and Summarized Income, Outgo, and Balance
as a Percentage of GDP, Calendar Years 2001-75  
Calendar year
Percentage of GDP
GDP in
dollars
(billions)
OASDI

HI

Combined
Income1
Outgo
Balance
Income 1
Outgo
Balance
Income 1
Outgo
Balance
 Intermediate:
2001
5.05
4.17
0.88

1.52
1.35
0.17

6.56
5.52
1.05
$10,528
2002
5.04
4.14
.90

1.52
1.33
.19

6.56
5.48
1.09
11,104
2003
5.04
4.15
.90

1.52
1.30
.22

6.57
5.44
1.12
11,669
2004
5.04
4.16
.88

1.52
1.31
.21

6.56
5.47
1.09
12,270
2005
5.03
4.18
.85

1.52
1.32
.21

6.56
5.49
1.06
12,920
2006
5.01
4.20
.81

1.52
1.32
.20

6.54
5.52
1.02
13,610
2007
5.01
4.24
.77

1.53
1.33
.19

6.54
5.57
.96
14,313
2008
5.00
4.29
.71

1.53
1.35
.18

6.53
5.64
.89
15,054
2009
5.00
4.36
.64

1.53
1.37
.16

6.52
5.73
.80
15,832
2010
4.99
4.43
.56

1.53
1.39
.15

6.52
5.82
.70
16,646












2015
4.97
4.97
.01

1.53
1.53
(2)

6.50
6.49
.01
21,302
2020
4.95
5.63
-.68

1.52
1.73
-.21

6.48
7.36
-.88
26,989
2025
4.94
6.17
-1.23

1.53
2.00
-.47

6.47
8.17
-1.70
34,068
2030
4.92
6.52
-1.60

1.54
2.32
-.78

6.46
8.84
-2.38
43,076
2035
4.89
6.63
-1.73

1.54
2.63
-1.09

6.43
9.26
-2.83
54,670
2040
4.86
6.55
-1.70

1.53
2.89
-1.36

6.39
9.45
-3.06
69,402
2045
4.82
6.48
-1.66

1.52
3.11
-1.59

6.34
9.58
-3.25
87,872
2050
4.78
6.45
-1.68

1.51
3.30
-1.78

6.29
9.75
-3.46
110,931
2055
4.74
6.50
-1.76

1.51
3.49
-1.98

6.25
9.99
-3.74
139,814
2060
4.71
6.57
-1.86

1.50
3.73
-2.23

6.21
10.30
-4.09
176,159
2065
4.67
6.62
-1.95

1.50
4.03
-2.53

6.17
10.65
-4.48
221,981
2070
4.64
6.67
-2.03

1.49
4.35
-2.87

6.12
11.02
-4.89
279,622
2075
4.60
6.70
-2.10

1.48
4.69
-3.21

6.08
11.39
-5.31
351,946
Summarized rates:3
25-year:
2001-25
5.47
5.06
.41

1.61
1.59
.02

7.08
6.65
.43

50-year:
2001-50
5.23
5.62
-.40

1.58
2.05
-.48

6.80
7.68
-.87

75-year
2001-75
5.11
5.81
-.70

1.56
2.46
-.90

6.67
8.27
-1.60

Low Cost:
2001
5.05
4.14
.91

1.52
1.31
.20

6.57
5.45
1.12
10,573
2002
5.06
4.10
.96

1.52
1.27
.25

6.58
5.37
1.21
11,173
2003
5.06
4.08
.98

1.52
1.22
.31

6.58
5.30
1.29
11,725
2004
5.06
4.06
1.00

1.52
1.20
.32

6.59
5.27
1.32
12,304
2005
5.07
4.05
1.02

1.53
1.19
.34

6.59
5.24
1.36
12,917
2006
5.06
4.04
1.02

1.53
1.17
.35

6.58
5.21
1.37
13,565
2007
5.06
4.04
1.02

1.53
1.16
.37

6.59
5.20
1.39
14,222
2008
5.06
4.06
1.00

1.53
1.16
.37

6.59
5.22
1.37
14,896
2009
5.06
4.10
.96

1.53
1.15
.38

6.59
5.25
1.34
15,597
2010
5.06
4.14
.92

1.54
1.15
.39

6.60
5.29
1.31
16,327












2015
5.06
4.55
.50

1.54
1.15
.38

6.59
5.71
.89
20,445
2020
5.05
5.12
-.07

1.54
1.20
.34

6.59
6.32
.27
25,317
2025
5.06
5.56
-.50

1.55
1.26
.28

6.60
6.83
-.22
31,252
2030
5.05
5.80
-.74

1.55
1.34
.21

6.61
7.14
-.53
38,722
2035
5.04
5.80
-.76

1.56
1.42
.13

6.59
7.22
-.63
48,284
2040
5.02
5.62
-.61

1.55
1.50
.06

6.57
7.12
-.55
60,376
2045
4.99
5.46
-.47

1.54
1.57
-.02

6.54
7.03
-.49
75,477
2050
4.97
5.37
-.39

1.54
1.65
-.11

6.51
7.02
-.51
94,206
2055
4.95
5.34
-.38

1.54
1.76
-.22

6.49
7.10
-.61
117,550
2060
4.93
5.31
-.38

1.53
1.89
-.36

6.47
7.20
-.73
146,834
2065
4.91
5.26
-.35

1.53
2.05
-.52

6.44
7.31
-.87
183,657
2070
4.89
5.21
-.32

1.52
2.23
-.70

6.41
7.43
-1.02
229,746
2075
4.87
5.18
-.31

1.52
2.41
-.89

6.39
7.59
-1.20
287,147
Low Cost (Cont.):
Summarized rates: 3
25-year:












2001-25
5.55
4.71
0.84

1.61
1.23
0.38

7.16
5.94
1.22

50-year:












2001-50
5.34
5.05
.29

1.59
1.32
.27

6.93
6.37
.56

75-year












2001-75
5.25
5.08
.17

1.58
1.47
.11

6.82
6.55
.28

High Cost:
2001
5.05
4.28
.78

1.51
1.40
.11

6.57
5.68
.89
$10,300
2002
5.04
4.35
.69

1.52
1.43
.09

6.55
5.78
.78
10,689
2003
5.00
4.29
.71

1.52
1.40
.12

6.52
5.68
.84
11,511
2004
4.97
4.41
.56

1.52
1.44
.08

6.48
5.85
.64
12,082
2005
4.94
4.56
.38

1.51
1.47
.04

6.46
6.03
.43
12,748
2006
4.94
4.55
.38

1.52
1.50
.02

6.45
6.05
.40
13,647
2007
4.94
4.58
.36

1.52
1.55
-.02

6.46
6.13
.33
14,472
2008
4.93
4.64
.29

1.52
1.59
-.07

6.46
6.24
.22
15,310
2009
4.93
4.73
.20

1.52
1.64
-.12

6.45
6.38
.08
16,190
2010
4.92
4.82
.10

1.53
1.70
-.17

6.44
6.51
-.07
17,136












2015
4.88
5.43
-.55

1.52
2.04
-.52

6.40
7.47
-1.07
22,468
2020
4.85
6.14
-1.30

1.51
2.53
-1.02

6.36
8.68
-2.32
29,169
2025
4.82
6.80
-1.98

1.52
3.20
-1.68

6.34
10.00
-3.66
37,707
2030
4.79
7.28
-2.49

1.52
4.06
-2.53

6.32
11.34
-5.02
48,712
2035
4.75
7.54
-2.79

1.52
4.91
-3.38

6.28
12.45
-6.17
62,971
2040
4.71
7.63
-2.92

1.52
5.64
-4.13

6.22
13.27
-7.05
81,177
2045
4.65
7.70
-3.05

1.51
6.22
-4.71

6.16
13.92
-7.76
104,077
2050
4.61
7.83
-3.22

1.50
6.62
-5.13

6.10
14.45
-8.35
132,798
2055
4.56
8.03
-3.47

1.49
6.98
-5.49

6.05
15.01
-8.96
168,866
2060
4.52
8.26
-3.74

1.49
7.43
-5.94

6.00
15.69
-9.69
214,277
2065
4.48
8.50
-4.03

1.48
7.98
-6.49

5.96
16.48
-10.52
271,491
2070
4.43
8.73
-4.29

1.48
8.58
-7.11

5.91
17.31
-11.40
343,574
2075
4.39
8.93
-4.54

1.47
9.20
-7.73

5.86
18.12
-12.26
434,372
Summarized rates: 3
25-year:












2001-25
5.39
5.51
-.12

1.60
2.11
-.51

6.99
7.62
-.64

50-year:












2001-50
5.11
6.33
-1.22

1.56
3.42
-1.86

6.68
9.75
-3.08

75-year












2001-75
4.98
6.77
-1.79

1.55
4.39
-2.84

6.52
11.16
-4.64

1 Income for individual years excludes interest on the trust funds. Interest is implicitly reflected in all summarized values.

2 Between -0.005 and 0.005 percent of GDP.

3 Summarized rates are calculated on the present-value basis including the value of the trust funds on January 1, 2001 and the cost of reaching and maintaining a target trust fund level equal to 100 percent of annual expenditures by the end of the period.

Note: Totals do not necessarily equal the sums of rounded components.

The difference between trust fund operations expressed as percentages of taxable payroll and those expressed as percentages of GDP can be understood by analyzing the estimated ratios of OASDI taxable payroll to GDP, which are presented in table VI.E6. HI taxable payroll is about 25 percent larger than the OASDI taxable payroll throughout the long-range period (see appendix A for a detailed description of the difference). The cost as a percentage of GDP is approximately equal to the cost as a percentage of taxable payroll multiplied by the ratio of taxable payroll to GDP.

Table VI.E6.- Ratio of OASDI Taxable Payroll to GDP, Calendar Years 2001-75
Calendar year
Intermediate
Low Cost
High Cost
2001
0.397
0.398
0.397
2002
.397
.399
.396
2003
.397
.399
.394
2004
.397
.399
.390
2005
.395
.399
.388
2006
.394
.398
.387
2007
.393
.398
.387
2008
.392
.398
.386
2009
.392
.397
.385
2010
.391
.397
.384



2015
.388
.396
.379
2020
.385
.394
.374
2025
.381
.392
.369
2030
.377
.390
.364
2035
.374
.388
.359
2040
.370
.387
.354
2045
.366
.385
.349
2050
.363
.383
.344
2055
.359
.381
.339
2060
.356
.379
.334
2065
.353
.377
.329
2070
.349
.376
.324
2075
.346
.374
.320

Projections of GDP are based on the projected increases in U.S. employment, labor productivity, average hours worked, and the GDP implicit price deflator. Projections of taxable payroll reflect the projected growth in GDP, along with assumed changes in the ratio of worker compensation to GDP, the ratio of earnings to worker compensation, the ratio of OASDI covered earnings to total earnings, and the ratio of taxable to total covered earnings.

Over the long-range period, projected increases in taxable payroll differ from projected increases in GDP primarily due to the assumed trend in the ratio of wages to total employee compensation-i.e., wages plus fringe benefits. The ratio of earnings to total worker compensation declined at an average annual rate of 0.21 percent for the 40 years from 1959 to 1999. For the 10-year periods 1959-69, 1969-79, 1979-89 the ratio declined by 0.29, 0.62, and 0.15 percent, respectively. For the 10-year period 1989-99 the ratio increased by 0.22 percent. Ultimate future annual rates of decline in the ratio of wages to employee compensation are assumed to be 0.1, 0.2, and 0.3 percent for alternatives I, II, and III, respectively. An additional factor that has made the overall ratio of taxable payroll to GDP decline in recent years is the decline in the ratio of taxable earnings to covered earnings, as a result of the relatively greater increases in earnings for persons with earnings above the benefit and contribution base. This decline in the taxable ratio is assumed to continue at a slower pace through 2010, with no further decline thereafter.


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