Anne E. Winkler

Beyond single mothers : cohabitation and marriage in the AFDC program

We investigate the extent and implications of cohabitation and marriage among U.S. welfare recipients. An analysis of four data sets (the Current Population Survey, the National Survey of Families and Households, the Panel Study of Income Dynamics, and the National Longitudinal Survey of Youth) shows significant numbers of cohabitors among recipients of AFDC. An even more surprising finding is the large number of married women on welfare. We also report the results of a telephone survey of state AFDC agencies conducted to determine state rules governing cohabitation and marriage. The survey results indicate that, in a number of respects, AFDC rules encourage cohabitation. Finally, we conduct an analysis of the impact of AFDC rules on cohabitation, marriage, and single motherhood and find weak evidence in support of incentives to cohabit.

The Impact of Information Technology on Academic Scientists' Productivity and Collaboration Patterns

This study investigates the impact of information technology (IT) on productivity and collaboration patterns in academe. Our data combine information on the diffusion of two noteworthy innovations in IT---BITNET and the Domain Name System (DNS)---with career-history data on research-active life scientists. We analyzed a random sample of 3,114 research-active life scientists from 314 U.S. institutions over a 25-year period and find that the availability of BITNET on a scientists campus has a positive effect on his or her productivity and collaborative network. Our findings also support the hypothesis of a differential effect of IT across subgroups of the scientific labor force. Women scientists and those working at nonelite institutions benefit more from the availability of IT in terms of overall research output and an increase in the number of new coauthors they work with than do men or individuals at elite institutions. These results suggest that IT is an equalizing force, providing a greater boost to productivity and more collaboration opportunities for scientists who are more marginally positioned in academe.

The Incentive Effects of Medicaid on Women's Labor Supply

This paper investigates Medicaids impact on womens labor supply behavior while taking into account Medicaids link to the AFDC program. The data were extracted from the 1986 Current Population Survey. A major finding is that Medicaid, valued as government-provided health insurance, has a significant negative impact on an average female heads probability of working. For instance, a 10 percent increase in Medicaid would reduce a heads probability of working by.9 to 1.3 percentage points. Contrary to expectations, Medicaid is found to have a generally insignificant effect on hours worked.

Economic decision-making by cohabitors: findings regarding income pooling

Cohabitation rates are increasing in the US but little is known about how cohabitors make economic decisions. For instance, do female cohabitors treat their male partners income as shared household income when choosing hours worked? Does income sharing differ among types of cohabitors? This study investigates whether or not cohabitors pool income by drawing inferences from a generalized model of labour supply. The empirical work uses data from the 1993 Current Population Survey and the 1987 National Survey of Families and Households. These data sets provide evidence that cohabitors, taken as a group, do not pool all income. However, there is also evidence that cohabitors are not homogeneous in their behaviour; income pooling is not rejected for cohabitors in longer-term relationships and for those who have a biological child together.

Wives Who Outearn Their Husbands: A Transitory or Persistent Phenomenon for Couples?

In what percentage of married couples do wives outearn their husbands, and, moreover, how persistent are these patterns? This study systematically examined variation in point-in-time estimates across alternative measures of earnings, definitions of types of couples, and data sources and gauged the persistence of these patterns for a period of three calendar years using data from the 2000 Current Population Survey and the 1996–2000 Survey of Income and Program Participation. Among the findings are that in 19% to 30% of all married couples, wives have higher earnings than their husbands. In 60% of such couples, this arrangement persists over the three-year period; for the rest, this arrangement is transitory.

Does AFDC-up encourage two-parent families?

Effective October 1990, the Family Support Act (FSA) of 1988 extended the previously state-optional AFDC-Unemployed Parent (UP) program to all states. This policy was undertaken in an effort to reduce the two-parent penalty of the AFDC program, but little is actually known about UP and its influence on family structure. This study clarifies what is meant by “two-parent family” in the federal legislation and provides new evidence on AFDCs incentive effects. The empirical analysis makes use of the cross-state variation in the generosity of AFDC benefits and the presence (or absence) of AFDC-UP before the FSA of 1988. Specifically, these state-level data are appended to data from the 1987 National Survey of Families and Households (NSFH). A real advantage of the NSFH is that it allows for the identification of those truly eligible for the UP program-married and unmarried couples who have an “in-common” dependent child. The major empirical finding is that contrary to the hopes of Congress, a states provision of a UP program is not found to encourage two-parent families.

The impact of housing costs on the living arrangements of single mothers

Abstract This paper investigates the impact of housing costs on a single mothers living arrangement decision, whether to head her own household or live in the household of other adults. The empirical analysis is conducted using individual-level data from the 1986 Current Population Survey and MSA-level housing cost data based on HUDs Fair Market Rents. Consistent with a priori expectations, the major finding is that increased housing costs significantly reduce a single mothers probability of household headship. This result is especially pronounced for single mothers under age 36.

Antigenic domains on the U1 small nuclear ribonucleoprotein-associated 70K polypeptide: A comparison of regions selectively recognized by human and mouse autoantibodies and by monoclonal antibodies

Antigenic regions on the U1 small nuclear ribonucleoprotein (snRNP)-associated 70K polypeptide recognized by human and mouse autoantibodies or by monoclonal antibodies were identified and compared. Using a set of 70K fusion proteins as antigen in enzyme-linked immunosorbent assay and immunoblotting revealed that serum autoantibodies of human and of MRL/Mp mouse origin recognized a common region of the 70K polypeptide. Monoclonal anti-70K antibodies derived from a patient with mixed connective tissue disease, from an autoimmune MRL/Mp mouse, and from a BALB/c mouse immunized with purified U1 snRNP were all shown to bind to a part of the 70K polypeptide rich in charged residues and different from the region recognized by most human and MRL/Mp mouse serum autoantibodies.

The determinants of a mother's choice of family structure: Labor market conditions, AFDC policy or community mores?

This study attempts to clarify the effect of welfare generosity on family structure while controlling for community mores, local labor market conditions, and other sociodemographic characteristics. In the existing AFDC (Aid to Families with Dependent Children) literature, these latter factors have been largely ignored. The empirical analysis is conducted by linking individual-level data from the 1987 National Survey of Families and Households (NSFH) with information on county-level unemployment rates, state AFDC benefits, and proxies of community mores. In particular, the detailed nature of the NSFH data set provides a unique opportunity to investigate the social and economic determinants of cohabitation, among other family structures. Local labor market conditions are found to significantly affect marriage and single-motherhood, while community conservatism is found to discourage the least conventional family structure — cohabitation. Finally, this study raises some question about the effect of AFDC policy on marriage and related events. Specifically, AFDCs statistical impact is found to be sensitive to the inclusion of an explicit measure of community conservatism in the empirical model specification.

Ocular complications of tangier disease

Tangier disease, or familial high-density lipoprotein deficiency, is an inherited disorder resulting in tissue deposition of excessive cholesterol esters. Although associated corneal clouding has been reported to produce little visual impairment, this patient with Tangier disease had corneal clouding, decreased corneal sensation, and cicatricial ectropion and experienced slowly progressive marked visual impairment. All ocular cases of Tangier disease are reviewed. Ectropion and incomplete eyelid closure may precede corneal clouding and should be recognized as signs associated with Tangier disease. The combination of exposure keratopathy and corneal infiltration can cause significant visual impairment.