762 research outputs found
Welfare Reform, Saving, and Vehicle Ownership: Do Asset Limits and Vehicle Exemptions Matter?
This paper examines whether AFDC/TANF asset tests affect the asset holdings of low-educated single mothers, exploiting variation in asset limits and exemptions across states and over time. There are important reasons to examine vehicle assets in this context. For example, vehicles make up a very significant share of total wealth for poor families, and the variation in vehicle exemptions over time and across states far exceeds the variation in asset limits. Consistent with other recent research, I find little evidence that asset limits have an effect on the amount of liquid assets that single mothers hold. However, I find evidence that vehicle exemptions do have an important effect on vehicle assets. The findings suggest that moving from a $1500 vehicle exemption to a full vehicle exemption increases the probability of owning a car by 20 percentage points for low-educated single mothers relative to a comparison group. Also, the results indicate that single mothers are not substituting vehicle equity for liquid assets in response to more relaxed restrictions on vehicles.Sullivan, TANF, eligibility, vehicle, asset limits
The Effects of Welfare and Tax Reform: The Material Well-Being of Single Mothers in the 1980s and 1990s
The tax and welfare programs that provide income and in-kind benefits to single mothers have changed dramatically in recent years. These changes began as far back as the mid-1980s and culminated with the 1996 welfare law that 'ended welfare as we knew it.' These tax and welfare changes have sharply increased the employment of single mothers and cut welfare rolls. However, little is know about the effects of these policy changes on the living conditions of single mothers and their children. Studies of those leaving welfare have found that a substantial percentage have problems paying rent, purchasing enough food, and paying utility bills. Other studies have found a decline in income among the worst-off single mothers. The goal of this paper is to examine the material well-being of single mothers and their families before and soon after welfare reform. Using data from two nationally representative household surveys we examine the consumption patterns of single mothers and their families. We find that the material conditions of single mothers did not decline in recent years, either in absolute terms or relative to single childless women or married mothers. In most cases, our evidence suggests that the material conditions of single mothers have improved slightly, even for highly disadvantaged single mothers.
Further Results on Measuring the Well-Being of the Poor Using Income and Consumption
In the U.S., analyses of poverty rates and the effects of anti-poverty programs rely almost exclusively on income data. In earlier work (Meyer and Sullivan, 2003) we emphasized that conceptual arguments generally favor using consumption data to measure the well-being of the poor, and, on balance, data quality issues favor consumption in the case of single mothers. Our earlier work did not show that income and consumption differ in practice. Here we further examine data quality issues and show that important conclusions about recent trends depend on whether one uses consumption or income. Changes in the distribution of resources for single mothers differ sharply in recent years depending on whether measured by income or consumption. Measures of overall and sub-group poverty also sharply differ. In addition to examining broader populations and a longer time period, we also consider new dimensions of data quality such as survey and item nonresponse, imputation, and precision. Finally, we demonstrate the flaws in a recent paper that compares income and consumption data.
Welfare Reform, Saving, and Vehicle Ownership: Do Asset Limits and Vehicle Exemptions Matter?
This paper examines whether AFDC/TANF asset tests affect the asset holdings of low-educated single mothers, exploiting variation in asset limits and exemptions across states and over time. There are important reasons to examine vehicle assets in this context. For example, vehicles make up a very significant share of total wealth for poor families, and the variation in vehicle exemptions over time and across states far exceeds the variation in asset limits. Consistent with other recent research, I find little evidence that asset limits have an effect on the amount of liquid assets that single mothers hold. However, I find evidence that vehicle exemptions do have an important effect on vehicle assets. The findings suggest that moving from a $1500 vehicle exemption to a full vehicle exemption increases the probability of owning a car by 20 percentage points for low-educated single mothers relative to a comparison group. Also, the results indicate that single mothers are not substituting vehicle equity for liquid assets in response to more relaxed restrictions on vehicles
Essays on the Consumption, Saving, and Borrowing Behavior of Poor Households: Dissertation Summary
This thesis examines micro-level borrowing, saving, and consumption behavior of the poor in the United States. The four chapters of this thesis address several important policy-relevant issues related to the wellbeing of the poor, including the ability of households to maintain well-being during unemployment; the wellbeing of single mothers transitioning from welfare to work; and the impacts of welfare reform on saving
Consumption and Income Poverty over the Business Cycle
We examine the relationship between the business cycle and poverty for the period from 1960 to 2008 using income data from the Current Population Survey and consumption data from the Consumer Expenditure Survey. This new evidence on the relationship between macroeconomic conditions and poverty is of particular interest given recent changes in anti-poverty policies that have placed greater emphasis on participation in the labor market and in-kind transfers. We look beyond official poverty, examining alternative income poverty and consumption poverty, which have conceptual and empirical advantages as measures of the well-being of the poor. We find that both income and consumption poverty are sensitive to macroeconomic conditions. A one percentage point increase in unemployment is associated with an increase in the after-tax income poverty rate of 0.9 to 1.1 percentage points in the long-run, and an increase in the consumption poverty rate of 0.3 to 1.2 percentage points in the long-run. The evidence on whether income is more responsive to the business cycle than consumption is mixed. Income poverty does appear to be more responsive using national level variation, but consumption poverty is often more responsive to unemployment when using regional variation. Low percentiles of both income and consumption are sensitive to macroeconomic conditions, and in most cases low percentiles of income appear to be more responsive than low percentiles of consumption.
Five Decades of Consumption and Income Poverty
This paper examines poverty in the United States from 1960 through 2005. We investigate how poverty rates and poverty gaps have changed over time, explore how these trends differ across family types, contrast these trends for several different income and consumption measures of poverty, and consider explanations for the differences in trends. We document sharp differences, particularly in recent years, between different income poverty measures, and between income and consumption poverty rates and gaps. Moving from the official pre-tax money income measure to a disposable income measure that incorporates taxes and transfers has a substantial effect on poverty rate changes over the past two decades. Furthermore, consumption poverty rates often indicate large declines, even in recent years when income poverty rates have risen. We show that bias in the CPI-U has a sizable effect on changes in poverty. Between the early 1960s and 2005, an income poverty measure that corrects for bias in this price index declines by 14 percentage points more than a comparable measure based on the CPI-U. The patterns are very different across family types, with consumption poverty falling much faster than income poverty for single parents and the elderly, but more slowly for married couples with children. Income and consumption measures of deep poverty and poverty gaps have generally moved sharply in opposite directions in the last two decades with income deep poverty and poverty gaps rising, but consumption deep poverty and poverty gaps falling. While relative poverty rose in the early 1980s, changes in relative poverty have been fairly small since 1990. We examine the role that demographics, taxes, and transfers play in explaining changes in poverty over the past three decades. We also consider whether measurement error, saving and dissaving, and other explanations can account for income and consumption differences.
The Under-Reporting of Transfers in Household Surveys: Its Nature and Consequences
High rates of understatement are found for many government transfer programs and in many datasets. This understatement has major implications for our understanding of economic well-being and the effects of transfer programs. We provide estimates of the extent of under-reporting for ten transfer programs in five major nationally representative surveys by comparing reported weighted totals for these programs with totals obtained from government agencies. We also examine imputation procedures and rates. We find increasing under-reporting and imputation over time and sharp differences across programs and surveys. We explore reasons for under-reporting and how under-reporting biases existing studies and suggest corrections.
The Personal Sequence Database: a suite of tools to create and maintain web-accessible sequence databases
Background: Large molecular sequence databases are fundamental resources for modern\ud
bioscientists. Whether for project-specific purposes or sharing data with colleagues, it is often\ud
advantageous to maintain smaller sequence databases. However, this is usually not an easy task for\ud
the average bench scientist.\ud
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Results: We present the Personal Sequence Database (PSD), a suite of tools to create and\ud
maintain small- to medium-sized web-accessible sequence databases. All interactions with PSD\ud
tools occur via the internet with a web browser. Users may define sequence groups within their\ud
database that can be maintained privately or published to the web for public use. A sequence group\ud
can be downloaded, browsed, searched by keyword or searched for sequence similarities using\ud
BLAST. Publishing a sequence group extends these capabilities to colleagues and collaborators. In\ud
addition to being able to manage their own sequence databases, users can enroll sequences in\ud
BLASTAgent, a BLAST hit tracking system, to monitor NCBI databases for new entries displaying\ud
a specified level of nucleotide or amino acid similarity.\ud
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Conclusion: The PSD offers a valuable set of resources unavailable elsewhere. In addition to\ud
managing sequence data and BLAST search results, it facilitates data sharing with colleagues,\ud
collaborators and public users. The PSD is hosted by the authors and is available at http://\ud
bioinfo.cgrb.oregonstate.edu/psd/
Secondary somatic mutations restoring RAD51C and RAD51D associated with acquired resistance to the PARP inhibitor rucaparib in high-grade ovarian carcinoma
High-grade epithelial ovarian carcinomas (OC) containing mutated BRCA1 or BRCA2 (BRCA1/2) homologous recombination (HR) genes are sensitive to platinum-based chemotherapy and poly(ADP-ribose) polymerase inhibitors (PARPi), while restoration of HR function due to secondary mutations in BRCA1/2 has been recognized as an important resistance mechanism. We sequenced core HR pathway genes in 12 pairs of pre-treatment and post-progression tumor biopsy samples collected from patients in ARIEL2 Part 1, a phase 2 study of the PARPi rucaparib as treatment for platinum-sensitive, relapsed OC. In six of 12 pre-treatment biopsies, a truncation mutation in BRCA1, RAD51C or RAD51D was identified. In five of six paired post-progression biopsies, one or more secondary mutations restored the open reading frame. Four distinct secondary mutations and spatial heterogeneity were observed for RAD51C. In vitro complementation assays and a patient-derived xenograft (PDX), as well as predictive molecular modeling, confirmed that resistance to rucaparib was associated with secondary mutations
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