This volume, second in the series, provides essential background material for policy analysts, researchers, statisticians, and others interested in the application of microsimulation techniques to develop estimates of the costs and population impacts of proposed changes in government policies ranging from welfare to retirement income to health care to taxes. The material spans data inputs to models, design and computer implementation of models, validation of model outputs, and model documentation.
This book reviews the uses and abuses of microsimulation modelsâ€"large, complex models that produce estimates of the effects on program costs and who would gain and who would lose from proposed changes in government policies ranging from health care to welfare to taxes. Volume 1 is designed to guide future investment in modeling and analysis capability on the part of government agencies that produce policy estimates. It will inform congressional and executive decision makers about the strengths and weaknesses of models and estimates and will interest social scientists in the potential of microsimulation techniques for basic and applied research as well as policy uses. The book concludes that a "second revolution" is needed to improve the quality of microsimulation and other policy analysis models and the estimates they produce, with a special emphasis on systematic validation of models and communication of validation results to decision makers.
This book reviews the uses and abuses of microsimulation models--large, complex models that produce estimates of the effects on program costs and who would gain and who would lose from proposed changes in government policies ranging from health care to welfare to taxes. Volume 1 is designed to guide future investment in modeling and analysis capability on the part of government agencies that produce policy estimates. It will inform congressional and executive decision makers about the strengths and weaknesses of models and estimates and will interest social scientists in the potential of microsimulation techniques for basic and applied research as well as policy uses. The book concludes that a "second revolution" is needed to improve the quality of microsimulation and other policy analysis models and the estimates they produce, with a special emphasis on systematic validation of models and communication of validation results to decision makers.
Reform of welfare is one of the nation's most contentious issues, with debate often driven more by politics than by facts and careful analysis. Evaluating Welfare Reform in an Era of Transition identifies the key policy questions for measuring whether our changing social welfare programs are working, reviews the available studies and research, and recommends the most effective ways to answer those questions. This book discusses the development of welfare policy, including the landmark 1996 federal law that devolved most of the responsibility for welfare policies and their implementation to the states. A thorough analysis of the available research leads to the identification of gaps in what is currently known about the effects of welfare reform. Evaluating Welfare Reform in an Era of Transition specifies what-and why-we need to know about the response of individual states to the federal overhaul of welfare and the effects of the many changes in the nation's welfare laws, policies, and practices. With a clear approach to a variety of issues, Evaluating Welfare Reform in an Era of Transition will be important to policy makers, welfare administrators, researchers, journalists, and advocates on all sides of the issue.
This book reviews the uses and abuses of microsimulation modelsâ€"large, complex models that produce estimates of the effects on program costs and who would gain and who would lose from proposed changes in government policies ranging from health care to welfare to taxes. Volume 1 is designed to guide future investment in modeling and analysis capability on the part of government agencies that produce policy estimates. It will inform congressional and executive decision makers about the strengths and weaknesses of models and estimates and will interest social scientists in the potential of microsimulation techniques for basic and applied research as well as policy uses. The book concludes that a "second revolution" is needed to improve the quality of microsimulation and other policy analysis models and the estimates they produce, with a special emphasis on systematic validation of models and communication of validation results to decision makers.
This volume, second in the series, provides essential background material for policy analysts, researchers, statisticians, and others interested in the application of microsimulation techniques to develop estimates of the costs and population impacts of proposed changes in government policies ranging from welfare to retirement income to health care to taxes. The material spans data inputs to models, design and computer implementation of models, validation of model outputs, and model documentation.
This book evaluates changes needed to improve the usefulness and cost-effectiveness of the Survey of Income and Program Participation (SIPP). Conducted by the Census Bureau, SIPP is a major continuing survey that is designed to provide information about the economic well-being of the U.S. population and its need for and participation in government assistance programs (e.g., social security, Medicare, Medicaid, food stamps, AFDC). This volume considers the goals for the survey, the survey and sample design, data collection and processing systems, publications and other data products, analytical techniques for using the data, the methodological research and evaluation to implement and assess the redesign, and the management of the program at the Census Bureau.
The retirement income security of older Americans and the cost of providing that security are increasingly the subject of major debate. This volume assesses what we know and recommends what we need to know to estimate the short- and long-term effects of policy alternatives. It details gaps in data and research and evaluates possible models to estimate the impact of policy changes that could affect retirement income from Social Security, pensions, personal savings, and other sources.
For every weapons system being developed, the U.S. Department of Defense (DOD) must make a critical decision: Should the system go forward to full-scale production? The answer to that question may involve not only tens of billions of dollars but also the nation's security and military capabilities. In the milestone process used by DOD to answer the basic acquisition question, one component near the end of the process is operational testing, to determine if a system meets the requirements for effectiveness and suitability in realistic battlefield settings. Problems discovered at this stage can cause significant production delays and can necessitate costly system redesign. This book examines the milestone process, as well as the DOD's entire approach to testing and evaluating defense systems. It brings to the topic of defense acquisition the application of scientific statistical principles and practices.
The National School Lunch and School Breakfast Programs, administered by the Food and Nutrition Service (FNS) of the U.S. Department of Agriculture (USDA), are key components of the nation's food security safety net, providing free or low-cost meals to millions of schoolchildren each day. To qualify their children each year for free or reduced-price meals, many families must submit applications that school officials distribute and review. To reduce this burden on families and schools and to encourage more children to partake of nutritious meals, USDA regulations allow school districts to operate their meals programs under special provisions that eliminate the application process and other administrative procedures in exchange for providing free meals to all students enrolled in one or more school in a district. FNS asked the National Academies' Committee on National Statistics and Food and Nutrition Board to convene a panel of experts to investigate the technical and operational feasibility of using data from the continuous American Community Survey (ACS) to estimate students eligible for free and reduced-price meals for schools and school districts. The ACS eligibility estimates would be used to develop "claiming percentages" that, if sufficiently accurate, would determine the USDA reimbursements to districts for schools that provided free meals to all students under a new special provision that eliminated the ongoing base-year requirements of current provisions. Using American Community Survey Data to Expand Access to the School Meals Program was conducted in two phases. It first issued an interim report (National Research Council, 2010), describing its planned approach for assessing the utility of ACS-based estimates for a special provision to expand access to free school meals. This report is the final phase which presents the panel's findings and recommendations.
Reform of welfare is one of the nation's most contentious issues, with debate often driven more by politics than by facts and careful analysis. Evaluating Welfare Reform in an Era of Transition identifies the key policy questions for measuring whether our changing social welfare programs are working, reviews the available studies and research, and recommends the most effective ways to answer those questions. This book discusses the development of welfare policy, including the landmark 1996 federal law that devolved most of the responsibility for welfare policies and their implementation to the states. A thorough analysis of the available research leads to the identification of gaps in what is currently known about the effects of welfare reform. Evaluating Welfare Reform in an Era of Transition specifies what-and why-we need to know about the response of individual states to the federal overhaul of welfare and the effects of the many changes in the nation's welfare laws, policies, and practices. With a clear approach to a variety of issues, Evaluating Welfare Reform in an Era of Transition will be important to policy makers, welfare administrators, researchers, journalists, and advocates on all sides of the issue.
The Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA) of 1996 fundamentally changed the nation's social welfare system, replacing a federal entitlement program for low-income families, called Aid to Families with Dependent Children (AFDC), with state-administered block grants, the Temporary Assistance for Needy Families (TANF) program. PRWORA furthered a trend started earlier in the decade under so called "waiver" programs-state experiments with different types of AFDC rules-toward devolution of design and control of social welfare programs from the federal government to the states. The legislation imposed several new, major requirements on state use of federal welfare funds but otherwise freed states to reconfigure their programs as they want. The underlying goal of the legislation is to decrease dependence on welfare and increase the self-sufficiency of poor families in the United States. In summer 1998, the Office of the Assistant Secretary for Planning and Evaluation (ASPE) of the Department of Health and Human Services (DHHS) asked the Committee on National Statistics of the National Research Council to convene a Panel on Data and Methods for Measuring the Effects of Changes in Social Welfare Programs. The panel's overall charge is to study and make recommendations on the best strategies for evaluating the effects of PRWORA and other welfare reforms and to make recommendations on data needs for conducting useful evaluations. This interim report presents the panel's initial conclusions and recommendations. Given the short length of time the panel has been in existence, this report necessarily treats many issues in much less depth than they will be treated in the final report. The report has an immediate short-run goal of providing DHHS-ASPE with recommendations regarding some of its current projects, particularly those recently funded to study "welfare leavers"-former welfare recipients who have left the welfare rolls as part of the recent decline in welfare caseloads.
The National School Lunch Program and the School Breakfast Program, administered by the Food and Nutrition Service of the U.S. Department of Agriculture (USDA), are key components of the nation's food security safety net, providing free or low-cost meals to millions of school-age children each day. Under the most commonly adopted provisions, USDA reimburses districts for meals served on the basis of data collected in a "base year," during which applications are taken. After 3 or 4 years, applications must be taken again to establish new base-year data, unless the district provides evidence that local conditions have not changed. A special provision that does not require applications to be taken every few years would reduce burden, be more attractive to school districts, and potentially increase student participation by expanding access to free meals. To support the development of such a provision, the Food and Nutrition Service asked the National Academies to study the technical and operational issues that arise in using data from the American Community Survey (ACS)-a new continuous survey replacing the long-form survey of the decennial census-to obtain estimates of students who are eligible for free and reduced-price meals for schools and school districts. Such estimates would be used to develop "claiming percentages" that, if sufficiently accurate, would determine federal reimbursements to districts for the schools that provide free meals to all students under a new special provision that eliminates the base-year requirements of current provisions.
Policy makers need information about the nationâ€"ranging from trends in the overall economy down to the use by individuals of Medicareâ€"in order to evaluate existing programs and to develop new ones. This information often comes from research based on data about individual people, households, and businesses and other organizations, collected by statistical agencies. The benefit of increasing data accessibility to researchers and analysts is better informed public policy. To realize this benefit, a variety of modes for data accessâ€" including restricted access to confidential data and unrestricted access to appropriately altered public-use dataâ€"must be used. The risk of expanded access to potentially sensitive data is the increased probability of breaching the confidentiality of the data and, in turn, eroding public confidence in the data collection enterprise. Indeed, the statistical system of the United States ultimately depends on the willingness of the public to provide the information on which research data are based. Expanding Access to Research Data issues guidance on how to more fully exploit these tradeoffs. The panel's recommendations focus on needs highlighted by legal, social, and technological changes that have occurred during the last decade.
The Panel on Estimates of Poverty for Small Geographic Areas was established by the Committee on National Statistics at the National Research Council in response to the Improving America's Schools Act of 1994. That act charged the U.S. Census Bureau to produce updated estimates of poor school-age children every two years for the nation's more than 3,000 counties and 14,000 school districts. The act also charged the panel with determining the appropriateness and reliability of the Bureau's estimates for use in the allocation of more than $7 billion of Title I funds each year for educationally disadvantaged children. The panel's charge was both a major one and one with immovable deadlines. The panel had to evaluate the Census Bureau's work on a very tight schedule in order to meet legal requirements for allocation of Title I funds. As it turned out, the panel produced three interim reports: the first one evaluated county-level estimates of poor school-age children in 1993, the second one assessed a revised set of 1993 county estimates; and the third one covered both county- and school district-level estimates of poor school-age children in 1995. This volume combines and updates these three reports into a single reference volume.
The retirement income security of older Americans and the cost of providing that security are increasingly the subject of major debate. This volume assesses what we know and recommends what we need to know to estimate the short- and long-term effects of policy alternatives. It details gaps in data and research and evaluates possible models to estimate the impact of policy changes that could affect retirement income from Social Security, pensions, personal savings, and other sources.
Policy makers need information about the nation—ranging from trends in the overall economy down to the use by individuals of Medicare—in order to evaluate existing programs and to develop new ones. This information often comes from research based on data about individual people, households, and businesses and other organizations, collected by statistical agencies. The benefit of increasing data accessibility to researchers and analysts is better informed public policy. To realize this benefit, a variety of modes for data access— including restricted access to confidential data and unrestricted access to appropriately altered public-use data—must be used. The risk of expanded access to potentially sensitive data is the increased probability of breaching the confidentiality of the data and, in turn, eroding public confidence in the data collection enterprise. Indeed, the statistical system of the United States ultimately depends on the willingness of the public to provide the information on which research data are based. Expanding Access to Research Data issues guidance on how to more fully exploit these tradeoffs. The panel’s recommendations focus on needs highlighted by legal, social, and technological changes that have occurred during the last decade.
The National Agricultural Statistics Service (NASS) is the primary statistical data collection agency within the U.S. Department of Agriculture (USDA). NASS conducts hundreds of surveys each year and prepares reports covering virtually every aspect of U.S. agriculture. Among the small-area estimates produced by NASS are county-level estimates for crops (planted acres, harvested acres, production, and yield by commodity) and for cash rental rates for irrigated cropland, nonirrigated cropland, and permanent pastureland. Key users of these county-level estimates include USDA's Farm Services Agency (FSA) and Risk Management Agency (RMA), which use the estimates as part of their processes for distributing farm subsidies and providing farm insurance, respectively. Improving Crop Estimates by Integrating Multiple Data Sources assesses county-level crop and cash rents estimates, and offers recommendations on methods for integrating data sources to provide more precise county-level estimates of acreage and yield for major crops and of cash rents by land use. This report considers technical issues involved in using the available data sources, such as methods for integrating the data, the assumptions underpinning the use of each source, the robustness of the resulting estimates, and the properties of desirable estimates of uncertainty.
Each year's poverty figures are anxiously awaited by policymakers, analysts, and the media. Yet questions are increasing about the 30-year-old measure as social and economic conditions change. In Measuring Poverty a distinguished panel provides policymakers with an up-to-date evaluation of: Concepts and procedures for deriving the poverty threshold, including adjustments for different family circumstances. Definitions of family resources. Procedures for annual updates of poverty measures. The volume explores specific issues underlying the poverty measure, analyzes the likely effects of any changes on poverty rates, and discusses the impact on eligibility for public benefits. In supporting its recommendations the panel provides insightful recognition of the political and social dimensions of this key economic indicator. Measuring Poverty will be important to government officials, policy analysts, statisticians, economists, researchers, and others involved in virtually all poverty and social welfare issues.
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