The Health Consequences of Senior Hunger in the United States: Evidence from the 1999-2010 NHANES

Millions of seniors are food insecure in the United States, meaning that scores do not have access to enough food at all times for an active, healthy life. What makes food insecurity an even more pressing issue is its association with a wide array of negative nutrition and health consequences. In earlier reports on food insecurity among seniors it was documented that food insecure seniors, even after controlling for other factors, were at higher risk of experiencing negative nutrition and health consequences than food secure seniors. In this report, we build on those earlier findings in three main directions. Namely, we add in several new health outcomes; we use four more years of data ; and we examine how trends in health and nutrition outcomes among food secure and food insecure seniors have changed over the past decade. Using data from the 1999-2010 National Health and Nutrition Examination Survey (NHANES), we considered the following outcomes related to nutrient intakes: energy intake, protein, vitamin A, vitamin C, thiamin, riboflavin, vitamin B6, calcium, phosphorous, magnesium, and iron. The set of health outcomes we analyzed were diabetes, general health , depression, diabetes, ADL limitations, high blood pressure, high cholesterol, congestive heart failure, coronary heart disease, cancer, reports of chest pain, gum disease, psoriasis, asthma, having had a heart attack, and a self-report of gum health

The Importance of Sample Attrition in Life Cycle Labor Supply

We examine the importance of possible non-random attrition to an econometric model of life cycle labor supply including joint nonlinear taxation of wage and interest incomes and latent heterogeneity.We use a Wald test comparing attriters to nonattriters and variable addition testing based on formal models of attrition.Results from the Panel Study of Income Dynamics are that non-random panel attrition is of little concern for prime-aged male labor supply estimation because the effect of attrition is absorbed into the fixed effects.Attrition is less econometrically influential than research design decisions typically taken for granted; the wage measure or instrument set has a much greater impact on the estimated labor supply function of prime-aged men than how one includes panel attrition.panel data;labour supply;econometric models;income tax;GMM

Do Welfare Asset Limits Affect Household Saving? Evidence from Welfare Reform

In this paper, we use household-level data from the Panel Study of Income Dynamics to examine the impact of new saving incentives that were implemented as part of the overhaul of U.S. welfare policy during the mid-1990s on the saving of households at risk of entering welfare. The Temporary Assistance to Needy Families program devolved responsibility of program rules to the states, and many states have responded by relaxing liquid asset and vehicle-equity limits that determine program eligibility, and by introducing time limits on benefit receipt. According to the recent theoretical work and statements made by public officials, such policies are predicted to increase total savings for those households who have a large ex-ante probability of welfare receipt such as female-headed households with children. We follow a sample of female heads with children from 1994 to 2001 and find that in both absolute terms, and relative to comparison groups of male heads and female heads without children, there has been no impact of welfare policy changes on the saving of at-risk households.

Amphibian Limb Regeneration and Cell Cycle Regulation

poster abstractPartial or full regeneration of limbs is an exclusive capability owned by a few amphibians, and this occurrence is often a potent factor to the survival of a species or its ability to thrive in an environment. A restricted ability, a greater understanding would have a profound impact and clear applications in the treating of human diseases, ailments, and injuries. Further grasping the mechanisms behind natural regeneration and its occurrence at different stages and under different stimuli may allow for mimicry in the influence of tissues for human benefit. In an antecedent study, it was observed that ecotropic viral integrative factor 5 (EVI5) was perpetuating itself at a greater rate in sample tissues of the regenerationcompetent axolotl salamander (Ambystoma mexicanum) as opposed to control tissue where this increase was null. EVI5 arrests the cells after Synthesis phase and G2 phase before the cells enter into Mitosis until prospective cells dedifferentiate and there is a an established blastema-the instrument by which regeneration continues. This study wished to show what proteins are expressed in the blastema tissue at these stages and to ascertain these previous findings. Samples of the axolotl were taken at 1, 4, and 7 days post-amputation where the amputation was made either midway or two-thirds towards the distal end of the tibia-fibula pairing. Samples were embedded and cut into sections with a cryostat at approximately -20 degrees Celsius. Immunofluorescent staining was utilized with EVI5 as primary antibody for the target site and anti-goat as the second antibody; in addition, H&E (hematoxylin and eosin) staining was employed to more definitively identify the nuclear structures of the cut and stained sections. Slides were observed under microscope to decipher protein expression and compare results. Positive identification of EVI5 reinforces its importance in delaying Mitosis so that a blastema can form and regeneration can occur

Tax Reform and Automatic Stabilization

A fundamental property of a progressive income tax is that it provides implicit collective insurance against idiosyncratic shocks to income by dampening the variability of disposable income and consumption. The Economic Recovery Tax Act of 1981 (ERTA) and the Tax Reform Act of 1986 (TRA86) greatly reduced the number of marginal tax brackets and the maximum marginal rate, which limits the ability of households to stabilize consumption in the face of transitory fluctuations in taxable income. We examine the effect of the federal income tax reforms of the 1980s on the associated degree of automatic stabilization of consumption. The empirical framework derives from the consumption insurance literature where the ideal outcome is spatially equal changes in households' marginal utilities of consumption. Because evidence for U.S. households rejects complete consumption insurance we begin with a model of partial consumption insurance, which we use to identify how the degree of partial insurance has changed since ERTA and TRA86. Our data come from interview years 1980-1991 in the Panel Study of Income Dynamics. Although in some cases the tax reforms of the 1980s actually increased the automatic stabilization inherent in a progressive income tax (especially when the Social Security payroll tax and the Earned Income Tax Credit are included), our overall outcome is that ERTA and TRA86 reduced consumption stability by about 50 percent. More recent tax reforms, most notably increased EITC generosity, have restored or enhanced consumption insurance.

Welfare Reform and Food Stamp Caseload Dynamics

We use state-level panel data for federal fiscal years 1980–1998 to estimate the impacts of welfare reform and the business cycle on food stamp caseloads. The model we employ is a dynamic function of past caseloads, economic factors, AFDC and Food Stamp Program policies, political factors, AFDC caseload levels, and unobserved fixed and trending heterogeneity. Our results suggest that the robust economy has substantially influenced the recent decline in food stamp caseloads, but that the estimated aggregate effect of welfare reform is modest—we attribute around 45 percent of 1994–1998 decline to the macroeconomy and about 5 percent to welfare reform. We do find substantial heterogeneity in the impact of AFDC waiver policies. States with JOBS sanctions policies but not family cap or earnings disregard waivers can expect a larger long-run decline in caseloads than those states with all three policies. In addition, we do find some evidence, albeit weaker, that states with waivers for unemployed able-bodied adults without dependents can expect higher caseload levels than states without the waivers and that the Electronic Benefits Transfer program is leading to food stamp caseload declines. An important finding of this study is that modeling food stamp caseload dynamics has implications for the estimated effects of policy changes and economic factors—when dynamic models are employed, we observe substantially reduced welfare-reform effects but significantly increased effects of the macroeconomy on food stamp caseloads. These results are robust to models that permit the simultaneous determination of AFDC and food stamp caseloads.

Relative Prices and Substitution Across Wage, Welfare, and Disability Income

In this paper I exploit the fact that the social and economic reforms over the past two decades differentially affected the opportunity costs of non-participation in work, welfare, and disability programs for single mothers across different birth-year and education cohorts. This cohort variation in after-tax wages and transfer benefits is used to identify own- and cross-price elasticities of demand for and substitution across wage, welfare, and disability income over 1979 to 2001 in the Current Population Survey. To estimate these key parameters I model household preferences with a conditional Almost Ideal Demand System that admits corner solutions, nonseparability, endogenous wages and incomes, and latent heterogeneity via cohort and state fixed effects. I match individual and family-level data in the CPS both with family-specific federal, state, and payroll tax rates, and with state-specific and time-varying benefit levels and effective tax rates in the AFDC and SSI programs. Using a two-limit Tobit instrumental variables estimator I find strong evidence of sizable own and cross-programmatic substitution effects. For example, the estimated elasticities imply that between 1979 and 1999 the increase in the generosity of SSI relative to AFDC accounts for about 40 percent of the average growth in SSI, while the increase in real wages accounts for about one-half of the average decline in AFDC shares over the past two decades. Simulations suggest that changes in relative after-tax wages and transfer-program benefits over the past two decades lead to a substantial “pull” out of cash welfare and into expanded reliance on employment and disability as a means of financial support among single mothers

Down from the Mountain: Skill Upgrading and Wages in Appalachia

Despite evidence that skilled labor is increasingly concentrated in cities, whether regional wage inequality is predominantly due to differences in skill levels or returns is unknown. We compare Appalachia, with its wide mix of urban and rural areas, to other parts of the U.S., and find that gaps in both skill levels and returns account for the lack of high wage male workers. For women, skill shortages are important across the distribution. Because rural wage gaps are insignificant, our results suggest that widening wage inequality between Appalachia and the rest of the U.S. owes to a shortage of skilled cities.wage inequality, region

Recent Developments in Antipoverty Policies in the United States

I survey recent developments in antipoverty policy in the United States over the past decade and examine how the safety net and tax system affects poverty and its correlates using data from the 2000 to 2010 waves of the Current Population Survey-Annual Social and Economic Supplement. Unlike the 1980s and 1990s, and until the health care overhaul in 2009, the first decade of the 21st Century was relatively tepid in terms of major transfer policy reforms. However, real spending on most major social program increased significantly, and in some cases doubled or tripled, in response to demographic shifts and the deep recession. In spite of the real growth in social insurance and means-tested transfer programs, the trends in after-tax and transfer poverty rates were little affected, and if anything, suggest the safety net has lost some of its antipoverty bite in terms of alleviating hardship among those living in deep poverty