How CBO Prepares Projections of Federal Spending for Social Security and Major Health Care Programs
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How CBO Prepares Projections of Federal Spending for Social Security and Major Health Care Programs

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Presentation by Joyce Manchester, Chief, Long-Term Analysis Unit, CBO

Presentation by Joyce Manchester, Chief, Long-Term Analysis Unit, CBO

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How CBO Prepares Projections of Federal Spending for Social Security and Major Health Care Programs Presentation Transcript

  • 1. Congressional Budget OfficeHow CBO Prepares Projections ofFederal Spending for Social Securityand Major Health Care ProgramsJoyce ManchesterChief, Long-Term Analysis UnitThis presentation contains information published in Updated Budget Projections:Fiscal Years 2012 to 2022 (March 2012), www.cbo.gov/publication/43119; The2012 Long-Term Budget Outlook (June 2012), www.cbo.gov/publication/43288;and Updated Budget Projections : Fiscal Years 2013 to 2023 (May 2013),http://www.cbo.gov/publication/44172.May 16, 2013
  • 2. C O N G R E S S I O N A L B U D G E T O F F I C ECBO’s Long-Term Projections ofFederal SpendingA big part of pressures on the federal budgetcomes from a few major programs– Social Security– Medicare– Medicaid and CHIP (the Children’s Health InsuranceProgram)– Starting in 2014, subsidies for the purchase of healthinsurance through exchanges
  • 3. C O N G R E S S I O N A L B U D G E T O F F I C ESpending for Social Security and Major HealthCare Programs as a Share of GDP024681012141973 1983 1993 2003 2013 2023(Percentage of GDP)
  • 4. C O N G R E S S I O N A L B U D G E T O F F I C ESpending for Social Security and Major Health Care Programsas a Share of Federal Spending Other Than Interest0102030405060701973 1983 1993 2003 2013 2023(Percentage of noninterest federal spending)
  • 5. C O N G R E S S I O N A L B U D G E T O F F I C ESpending on Social Security and Major Health Care Programs,Historically and Projected under Current Law01234561973 1978 1983 1988 1993 1998 2003 2008 2013 2018 2023Net MedicareSocial SecurityMedicaid, CHIP, andexchange subsidies(Percentage of GDP)Actual Projected
  • 6. C O N G R E S S I O N A L B U D G E T O F F I C EFramework for CBO’s Long-Term ProjectionsCBO makes long-term budget projections in two waysWithin the context of current lawAssuming changes to current law that continuecertain tax and spending policies that people havegrown accustomed toAn “alternative fiscal scenario”
  • 7. C O N G R E S S I O N A L B U D G E T O F F I C EFramework for CBO’s Long-Term ProjectionsBudget projections over the next 10 years are based ondetailed program projections underlying CBO’s baseline.Beyond 10 years, CBO relies on its long-term model(CBOLT):A microsimulation model set within an actuarial frameworkGoverned by an overarching macroeconomic modelSpending on the major federal health care programs isprojected separately in an actuarial framework.
  • 8. C O N G R E S S I O N A L B U D G E T O F F I C ELonger-Term Budget ProjectionsCBO’s long-term model, beyond 10 yearsSocial SecurityMedicareMedicaid, CHIP, and exchange subsidiesOther noninterest spending, which generally is assumed to grow with GDPTaxesValue of long-term projectionsHighlight trendsProvide baseline for assessing policy changesLimitations of long-term projectionsUncertainty, especially for health programsInteraction with macroeconomic conditions
  • 9. C O N G R E S S I O N A L B U D G E T O F F I C ENoninterest Spending and Revenues Under CBO’sLong-Term Budget Scenarios as of June 2012(Percentage of gross domestic product)2000 2005 2010 2015 2020 2025 2030 2035-10-5051015202530NoninterestSpendingRevenuesDifferencea2000 2005 2010 2015 2020 2025 2030 2035-10-5051015202530RevenuesNoninterestSpendingDifferenceaActual Projected Actual ProjectedCurrent Law Alternative Fiscal Scenario
  • 10. C O N G R E S S I O N A L B U D G E T O F F I C ECBO’s 10-Year Budget Projections,March 2012024681012142011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022Medicaid, CHIP, andexchange subsidiesNet MedicareSocial SecuritySocial Security and Major Health Care Programs(Percentage of gross domestic product)
  • 11. C O N G R E S S I O N A L B U D G E T O F F I C ECBO’s 10-Year Budget Projections,March 2012 vs. May 2013024681012142011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023Medicaid, CHIP, andexchange subsidiesNet MedicareSocial SecuritySocial Security and Major Health Care Programs(Percentage of gross domestic product)
  • 12. C O N G R E S S I O N A L B U D G E T O F F I C EOutlook for the Federal Budget as of June 2012Social Security and Major Health Care Programs, As Projected andCompared with the 40-year Average for Noninterest Spending(Percentage of GDP)051015202012 2037 40-Year Average10%15%19%
  • 13. C O N G R E S S I O N A L B U D G E T O F F I C EFederal Spending on Major Health Care Programs, byCategory, Under Current Law, June 2012(Percentage of gross domestic product)2000 2005 2010 2015 2020 2025 2030 20350246810MedicareMedicaid,CHIP, and ExchangeSubsidiesActual Projected
  • 14. C O N G R E S S I O N A L B U D G E T O F F I C ECBO’s Methodology for Long-Term Projections ofFederal Health Care SpendingFor the June 2012 projectionsSpending from 2012 to 2022 followed CBO’s March 2012 baseline.Under the May 2013 baselineThe 10-year projection for net Medicare spending is slightly lowerthan it was in the 2012 baseline.The 10-year projection for spending for Medicaid, CHIP, andexchange subsidies is somewhat smaller as well.
  • 15. C O N G R E S S I O N A L B U D G E T O F F I C ECBO’s Methodology for Projecting FederalHealth Care SpendingProjections beyond the 10-year budget window were basedon historical trends in health care cost growth, populationgrowth, and economic growth.CBO will use the most recent data to update those trends.Assumptions about trends in health care cost growth arecentral to CBO’s long-term spending projections for healthcare.
  • 16. C O N G R E S S I O N A L B U D G E T O F F I C EExcess Cost GrowthThe concept of excess cost growth (ECG) helps define theunderlying path of the cost of health care.ECG is the increase in health care spending per person relative tothe growth of potential GDP per person after removing the effectsof demographic changes on health care spending.CBO calculates historical rates of ECG as a weighted averageof annual rates relative to potential GDP, placing twice asmuch weight on the latest year as on the earliest year.The resulting growth rate used in 2012 was 1.6 percentage pointsper year.
  • 17. C O N G R E S S I O N A L B U D G E T O F F I C EExcess Cost Growth in Spending for Health CareMedicare MedicaidOther,IncludingPrivate Overall1975 to 2010 2.1 1.8 2.0 2.01980 to 2010 1.8 1.4 1.9 1.81985 to 2010 1.5 0.9 1.7 1.61990 to 2010 1.4 0.3 1.4 1.3(Percentage points)
  • 18. C O N G R E S S I O N A L B U D G E T O F F I C EDeclining Path for Excess Cost GrowthUsing the historical average for ECG for many years into thefuture results in a projection of federal health care spendingthat is very large.Continued growth in health care spending will createmounting pressure to slow the growth of health care costsin general, even if federal law is unchanged (as is assumedin CBO’s projections).CBO assumes that ECG will slow over time.
  • 19. C O N G R E S S I O N A L B U D G E T O F F I C E2012 Assumptions About Excess Cost Growth inSpending for Medicare over the Long TermThe underlying annual rate of ECG for Medicare wasassumed to decline from 1.6 percentage points to 1.0percentage point over 75 years.From 2023 to 2029 under current law, excess cost growth forMedicare was assumed to equal the average cost growthduring the last three years of the 10-year projection period,0.6 percentage points; thereafter, ECG was assumed tofollow the underlying path.Starting in 2023 under the alternative fiscal scenario, ECGwas assumed to follow the underlying path.
  • 20. C O N G R E S S I O N A L B U D G E T O F F I C E2012 Assumptions About Excess Cost Growth inSpending for Medicaid over the Long TermThe underlying rate of ECG was assumed to decline from1.6 percentage points in the first year to zero in the finalyear of the 75-year projection period.The ending point is lower than that for Medicare because stategovernments have more flexibility to respond to the pressures ofrising health care spending than does the federal government,without changing federal law.Under both current law and the alternative fiscal scenario,ECG for Medicaid followed the underlying rates beyond2022.
  • 21. C O N G R E S S I O N A L B U D G E T O F F I C EProjecting Population and GDPCBO projects the U.S. population using estimates of births,deaths, and immigration.– CBO uses a cell-based approach to estimate the populationannually by single year of age (0-119) and sex.– For Medicare only, the population matrix is furtherextended by three “time until death” categories (0-12months, 13-24 months, and survivor).– Projections of mortality and fertility came from theactuaries at the Social Security Administration.– CBO projects rates of immigration.CBO projects GDP using a macroeconomic growth model.
  • 22. C O N G R E S S I O N A L B U D G E T O F F I C EStrengths of CBO’s ApproachThe long-term projections jump off a detailed 10-yearbaseline projection.The approach is based on historical excess cost growth inhealth care spendingAdjusted for age, sex, and time until death (in Medicare).The long-term projections for Social Security and healthcare spending are designed within the context of CBO’soverall long-term budget projections.The projections provide a baseline for policy changes.