Unmarried Fathers’ Earnings Trajectories: Does Partnership Status Matter?

Married men earn more than unmarried men. Previous research suggests that marriage itself causes some of the difference, but includes few men who fathered children out of wedlock. This paper asks whether increasing marriage (and possibly cohabitation) following a non-marital birth is likely to increase fathers’ earnings and labor supply. The analyses are based on a new birth cohort study the Fragile Families and Child Wellbeing Study which follows unmarried parents for the first five years after their child’s birth. Results provide some support for the idea that increasing marriage will lead to increased fathers’ earnings.Cohabitation, marriage, income, men, males, earnings, income, children

Incarceration and support for children in fragile families

High US incarceration rates have motivated recent research on the negative effects of imprisonment on later employment, earnings, and family relationships. Given the high rates of fatherhood among men in jails and prisons, a large number of children are placed at considerable risk when a parent is incarcerated. This paper examines one dimension of the economic risk faced by children of incarcerated fathers: the reduction in the financial support that they receive. We use a population-based sample of urban children to examine the effects of incarceration on this support. Both cross-sectional and longitudinal regression models indicate that men with incarceration histories are significantly less likely to contribute to their families and those that do contribute provide significantly less. These negative effects of incarceration on fathers' financial support are due not only to diminished performance in the labor market by formerly incarcerated men, but also to their increased likelihood to live apart from their children. Men contribute far less through child support (formal or informal) than they do when they share their earnings within their household, suggesting that the destabilizing effects of incarceration on family relationships place children at significant economic disadvantage

Beyond Absenteeism: Father Incarceration and its Effects on Children’s Development

High rates of incarceration among American men, coupled with high rates of fatherhood among men in prison, have motivated recent research on the effects of parental imprisonment on children’s development. We contribute to this literature using data from the Fragile Families and Child Wellbeing Study to examine the effects of paternal incarceration on developmental and school readiness outcomes for approximately 3,000 urban children. We estimate cross-sectional and longitudinal regression models that control not only for fathers’ basic demographic characteristics and a rich set of potential confounders, but also for several measures of pre-incarceration child development, and family fixed effects. We find that paternal incarceration is positively associated with children’s externalizing problems at age five. Results are mixed with respect to attention problems, and we find some evidence that children of incarcerated fathers experience less anxiety than their peers. The observed effects of incarceration on child behavioral problems are significantly stronger than the effects of other forms of father absence, suggesting that children with incarcerated fathers may require specialized support from caretakers, teachers, and social service providers.Fragile families, childbearing, nonmarital childbearing, fartherhood, fathers, incarceration

Size-Dependent Transition to High-Dimensional Chaotic Dynamics in a Two-Dimensional Excitable Medium

The spatiotemporal dynamics of an excitable medium with multiple spiral defects is shown to vary smoothly with system size from short-lived transients for small systems to extensive chaos for large systems. A comparison of the Lyapunov dimension density with the average spiral defect density suggests an average dimension per spiral defect varying between three and seven. We discuss some implications of these results for experimental studies of excitable media.Comment: 5 pages, Latex, 4 figure

Towards practice-based studies of HRM: an actor-network and communities of practice informed approach

HRM may have become co-terminus with the new managerialism in the rhetorical orthodoxies of the HRM textbooks and other platforms for its professional claims. However, we have detailed case-study data showing that HR practices can be much more complicated, nuanced and indeed resistive toward management within organizational settings. Our study is based on ethnographic research, informed by actor-network theory and community of practice theory conducted by one of the authors over an 18-month period. Using actor-network theory in a descriptive and critical way, we analyse practices of managerial resistance, enrolment and counter-enrolment through which an unofficial network of managers used a formal HRM practice to successfully counteract the official strategy of the firm, which was to close parts of a production site. As a consequence, this network of middle managers effectively changed top management strategy and did so through official HRM practices, coupled with other actor-network building processes, arguably for the ultimate benefit of the organization, though against the initial views of the top management. The research reported here, may be characterized as a situated study of HRM-in-practice and we draw conclusions which problematize the concept of HRM in contemporary management literature

The effect of paternal incarceration on material hardship

Widespread use of incarceration in the US, coupled with high rates of inmate fatherhood, has raised concerns for the wellbeing of more than two million affected children. The deleterious and long term effects of incarceration on men's financial and relationship stability are well-established. Incarceration also compromises family material wellbeing, and partners are at risk of hardship and stress, which may diminish capacity for positive parenting and harm children's development. However, little is known about the links between father incarceration and family material wellbeing. Using the Fragile Families and Child Wellbeing survey we examine the extent to which fathers' incarceration increases the material hardship experienced by their families. We find that incarceration indeed increases hardship for families, by both reducing household income and disrupting family relationships and routines. These findings underscore the need for criminal justice agencies and social service providers to help mitigate the risks associated with a father's incarceration

TOWARDS FULLY AUTOMATED DIGITAL ALIBIS WITH SOCIAL INTERACTION

Digital traces found on local hard drives as a result of online activities have become very valuable in reconstructing events in digital forensic investigations. This paper demonstrates that forged alibis can be created for online activities and social interactions. In particular, a novel, automated framework is presented that uses social interactions to create false digital alibis. The framework simulates user activity and supports communications via email as well as instant messaging using a chatbot. The framework is evaluated by extracting forensic artifacts and comparing them with the results obtained from a human user study

Unmarried fathers' earnings trajectories: does partnership status matter?

Married men earn more than unmarried men. Previous research suggests that marriage itself "causes" some of the difference, but includes few men who fathered children out of wedlock. This paper asks whether increasing marriage (and possibly cohabitation) following a non-marital birth is likely to increase fathers' earnings and labor supply. The analyses are based on a new birth cohort study—the Fragile Families and Child Wellbeing Study—which follows unmarried parents for the first five years after their child's birth. Results provide some support for the idea that increasing marriage will lead to increase

Neural Network Model for Apparent Deterministic Chaos in Spontaneously Bursting Hippocampal Slices

A neural network model that exhibits stochastic population bursting is studied by simulation. First return maps of inter-burst intervals exhibit recurrent unstable periodic orbit (UPO)-like trajectories similar to those found in experiments on hippocampal slices. Applications of various control methods and surrogate analysis for UPO-detection also yield results similar to those of experiments. Our results question the interpretation of the experimental data as evidence for deterministic chaos and suggest caution in the use of UPO-based methods for detecting determinism in time-series data.Comment: 4 pages, 5 .eps figures (included), requires psfrag.sty (included