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Geographic Disparities in Alzheimer's Disease and Related Dementia Mortality in the US: Comparing Impacts of Place of Birth and Place of Residence
January 2025
Working Paper Number:
CES-25-11
Objective: Building on the hypothesis that early-life exposures might influence the onset of Alzheimer's Disease and Related Dementia (ADRD), this study delves into geographic variations in ADRD mortality in the US. By considering both state of residence and state of birth, we aim to discern the comparative significance of these geospatial factors.
Methods: We conducted a secondary data analysis of the National Longitudinal Mortality Study (NLMS), that has 3.5 million records from 1973-2011 and over 0.5 million deaths. We focused on individuals born in or before 1930, tracked in NLMS cohorts from 1979-2000. Employing multi-level logistic regression, with individuals nested within states of residence and/or states of birth, we assessed the role of geographical factors in ADRD mortality variation.
Results: We found that both state of birth and state of residence account for a modest portion of ADRD mortality variation. Specifically, state of residence explains 1.19% of the total variation in ADRD mortality, whereas state of birth explains only 0.6%. When combined, both state of residence and state of birth account for only 1.05% of the variation, suggesting state of residence could matter more in ADRD mortality outcomes.
Conclusion: Findings of this study suggest that state of residence explains more variation in ADRD mortality than state of birth. These results indicate that factors in later life may present more impactful intervention points for curbing ADRD mortality. While early-life environmental exposures remain relevant, their role as primary determinants of ADRD in later life appears to be less pronounced in this study.
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Measuring Income of the Aged in Household Surveys: Evidence from Linked Administrative Records
June 2024
Working Paper Number:
CES-24-32
Research has shown that household survey estimates of retirement income (defined benefit pensions and defined contribution account withdrawals) suffer from substantial underreporting which biases downward measures of financial well-being among the aged. Using data from both the redesigned 2016 Current Population Survey Annual Social and Economic Supplement (CPS ASEC) and the Health and Retirement Study (HRS), each matched with administrative records, we examine to what extent underreporting of retirement income affects key statistics such as reliance on Social Security benefits and poverty among the aged. We find that underreporting of retirement income is still prevalent in the CPS ASEC. While the HRS does a better job than the CPS ASEC in terms of capturing retirement income, it still falls considerably short compared to administrative records. Consequently, the relative importance of Social Security income remains overstated in household surveys'53 percent of elderly beneficiaries in the CPS ASEC and 49 percent in the HRS rely on Social Security for the majority of their incomes compared to 42 percent in the linked administrative data. The poverty rate for those aged 65 and over is also overstated'8.8 percent in the CPS ASEC and 7.4 percent in the HRS compared to 6.4 percent in the linked administrative data. Our results illustrate the effects of using alternative data sources in producing key statistics from the Social Security Administration's Income of the Aged publication.
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Older and Slower: The Startup Deficit's Lasting Effects on Aggregate Productivity Growth
June 2018
Working Paper Number:
CES-18-29
We investigate the link between declining firm entry, aging incumbent firms and sluggish U.S. productivity growth. We provide a dynamic decomposition framework to characterize the contributions to industry productivity growth across the firm age distribution and apply this framework to the newly developed Revenue-enhanced Longitudinal Business Database (ReLBD). Overall, several key findings emerge: (i) the relationship between firm age and productivity growth is downward sloping and convex; (ii) the magnitudes are substantial and significant but fade quickly, with nearly 2/3 of the effect disappearing after five years and nearly the entire effect disappearing after ten; (iii) the higher productivity growth of young firms is driven nearly exclusively by the forces of selection and reallocation. Our results suggest a cumulative drag on aggregate productivity of 3.1% since 1980. Using an instrumental variables strategy we find a consistent pattern across states/MSAs in the U.S. The patterns are broadly consistent with a standard model of firm dynamics with monopolistic competition.
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The New Lifecycle of Women's Employment: Disappearing Humps, Sagging Middle, Expanding Tops
November 2016
Working Paper Number:
carra-2016-07
The new lifecycle of women's employment is initially high and flat, there is a dip in the middle and a phasing out that is more prolonged than for previous cohorts. The hump is gone, the middle is a bit sagging and the top has greatly expanded. We explore the increase in cumulative work experience for women from the 1930s to the 1970s birth cohorts using the SIPP and the HRS. We investigate the changing labor force impact of a birth event across cohorts and by education and also the impact of taking leave or quitting. We find greatly increased labor force experience across cohorts, far less time out after a birth and greater labor force recovery for those who take paid or unpaid leave. More work experience across the lifecycle is related to the increased employment of women in their older ages.
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Grown-Up Business Cycles
October 2015
Working Paper Number:
CES-15-33
We document two striking facts about U.S. firm dynamics and interpret their significance for employment dynamics. The first is the dramatic decline in firm entry and the second is the gradual shift of employment toward older firms since 1980. We show that despite these trends, the lifecycle dynamics of firms and their business cycle properties have remained virtually unchanged. Consequently, aging is the delayed effect of accumulating startup deficits. Together, the decline in the employment contribution of startups and the shift of employment toward more mature firms contributed to the emergence of jobless recoveries in the U.S. economy.
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Workplace Characteristics and Employment of Older Workers
September 2012
Working Paper Number:
CES-12-31
As aging of the U.S. population places increased demands on public programs such as Social Security, an important question is how long older Americans are willing and able to work before they retire from the labor force. While studies based on household surveys have provided information on the role of savings, health status, pension and health insurance coverage, there is relatively little information on how workplace and employer characteristics affect the employment of older workers. In this study we use linked employer-employee data to explore the relationship between the characteristics of jobs held at age 55 and early retirement. We focus on a sample of 63-year-olds drawn from the 2005-2008 American Community Survey. We match this sample to information on their earnings, employment, employers and coworkers drawn from the Longitudinal Employer-Household Dynamics data for the years in which they age from 55 to 63. We use employment status as reported in the ACS to split the sample into those who have retired by age 63 and those who continue to work. We then examine differences between early retirees and continuing workers in the characteristics of their employment at age 55, and at how these characteristics change as they approach age 63. We find that early retirees are more likely to be employed by larger employers at age 55 than are continuers. They work for employers with somewhat higher pay than do continuers, and are less likely to have young coworkers.
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LEHD Data Documentation LEHD-OVERVIEW-S2008-rev1
December 2011
Working Paper Number:
CES-11-43
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Changes in Firm Pension Policy: Trends Away from Traditional Defined Benefit Plans
November 2011
Working Paper Number:
CES-11-36
In light of the recent concerns regarding the solvency of Social Security's Old-Age, Survivors and Disability Insurance (OASDI), private pensions may play an increasingly important role in retirement welfare of US retirees. However, the private pension landscape has evolved in ways that may result in lower private pension wealth for retirees. One recent such phenomenon involves the conversion of traditional defined benefit pension plans to cash balance plans, which resulted in lower pension benefits for many workers. In this study, I investigate how characteristics of the firm's workforce influenced whether the firm converted their traditional pension plan to a cash balance plan and how these characteristics related to the firm's pension plan policy more generally. Using the Longitudinal Employer-Household Data and pension plan data from the Department of Labor/Internal Revenue Service and the Pension Benefit Guaranty Corporation, I found little evidence of workforce age distribution effects on the likelihood of DB plan conversion to a cash balance plan in the 1990s. More generally, I consistently find positive associations between firms with older and more female workforces and defined contribution plans during the same time.
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Labor Market Rigidities and the Employment Behavior of Older Workers
July 2007
Working Paper Number:
CES-07-21
The labor market is often asserted to be characterized by rigidities that make it difficult for older workers to carry out their desired trajectory from work to retirement. An important source of rigidity is restrictions on hours of work imposed by firms that use team production or face high fixed costs of employment. Such rigidities are difficult to measure directly. We develop a model of the labor market in which technological rigidity affects the age structure of a firm's work force in equilibrium. Firms using relatively flexible technology care only about total hours of labor input, but not hours of work per worker. Older workers with a desire for short or flexible hours of work are attracted to such firms. Firms using a more rigid technology involving team production impose a minimum hours constraint, and as a result tend to have a younger age structure. A testable hypothesis of the model is that the hazard of separation of older workers is lower in firms with an older age structure. We use matched worker-firm data to test this hypothesis, and find support for it. Specification tests and alternative proxies for labor market rigidity support our interpretation of the effect of firm age structure on the separation propensity These results provide indirect but suggestive evidence of the importance of labor market rigidities.
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Older Workers' Access to Employer-Sponsored Retiree Health Insurance, 2000-2004
April 2007
Working Paper Number:
CES-07-12
Using a multivariate framework, we analyze recent trends in employer provision of retiree health insurance (RHI), eligibility for new retirees, and retiree contribution requirements. We also explore whether local labor market characteristics such as the unemployment rate influence RHI provision. Finally, we examine whether the Medicare Modernization Act (MMA) was associated with diverging trends in RHI access for Medicare-eligible and early retirees. Data come for the Medical Expenditure Panel Survey'Insurance Component (MEPS-IC). We find that, while RHI provision to existing retirees remained stable, eligibility for new retirees declined, and contribution requirements increased between 2000 and 2004. The local labor market had no effect on RHI provision. While early retiree coverage was more common than coverage for Medicare-eligible retirees, we did not find a divergence subsequent to MMA. These results suggest growing financial instability for retirees, both because RHI contribution requirements increased, and because businesses dropped coverage for new retirees.
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