Visitations and Transfers in Non-Intact Households

Recent research reveals that divorce negatively impacts children's welfare as a consequence of the reduction in monetary and time contributions of the non-custodial parent. When the custody arrangement is sole custody, the variables that link the absent parent to the child are visitations and child support transfers. We explain visitations and child support transfers using a behavioral model of competitive equilibrium in which both variables are the results of competitive allocations realized in a decentralized non-cooperative manner. In our framework the mother has control over visitations and the father has control over child support. Estimates of the model are used to simulate the effects of alternative endowment levels on the proportion of time spent with the noncustodial parent and the ex-post parental income distribution. Our results show that a more equal allocation of time with the child, though beneficial to the children, may negatively affect the mother's welfare, increasing the income gap between ex-spouses.

Welfare effects of fixed and percentage-expressed child support awards

Over the last decade a large number of states have significantly altered their legal statutes concerning the disposition of divorce cases involving children. In particular, many states have increasingly employed percentage-expressed orders in which child support obligations in a given period are determined as a proportion of the contemporaneous income of the noncustodial parent. In contrast to more traditional systems in which obligations were set in fixed nominal terms at the time of the divorce settlement and were infrequently (or never) updated, the dynamic system has the advantages of allowing children (and the custodial parent) an opportunity to share in the general income gains experienced by the noncustodial parent over the life cycle and of possibly alleviating some noncompliance problems. In this paper we conduct a rather extensive theory-based empirical investigation of the effects of these systems on the income process for divorced fathers and the child support transfer decision. We estimate a flexible statistical model for the income- generation process for divorced fathers which encompasses the period both before and after the divorce. We interpret the estimates from this model to indicate small behavioral effects of the type of order on postdivorce income, but nonrandom assignment (in terms of the means and variances of predivorce income) into the percentage-expressed-order state. Our analysis of the effects of the order type on child support transfers is divided into two parts. In the first, a "reduced form" analysis, we investigate whether or not the divorced father's regime defined as the order type and withholding status can be considered exogenous vis-a-vis the transfer decision, and examine the relative effects of the various regimes on the transfer rate. We further attempt to investigate order-type effects on compliance in the context of a structural model of the compliance decision. The results of the two analyses are for the most part consistent. Percentage orders are generally associated with lower compliance rates, though withholding tends to alleviate the problem. The highest compliance rates are associated with fixed orders coupled with withholding.

Environmental Effects on the Participation and Fertility Decisions of Married Women

Economic models of the household allocation have predicted that increased levels of education and wage rates of women would lead to increases in their labor supply and lower levels of fertility. In international comparisons, however, differences in this pattern appear which cannot easily be explained by the traditional model. IN some countries a high fertility rate is observed together with a high female participation rate, while in others, like Italy, low female participation rates are observed together with low birth rates.FERTILITY ; CHILD CARE ; LABOUR MARKET

Child care choices by working mothers: the case of Italy

In spite of relatively generous public subsidies and a reputation for high quality, only a very limited proportion of Italian families use public child-care and a large proportion use informal care. In this paper, we attempt to explore the determinants of the use of child-care among dual workers families. Given the limitations of data available we match two different data sets: the Bank of Italy (SHIW) and ISTAT Multiscopo. We find evidence that the availability of public child-care affects in an important way its demand. We also find that increases in costs of public child-care reduce the use of public as well as private indicating a shift to informal child-care. The presence of a grandmother who lives near and is in good health is an important explanation of the choice especially in presence of very small children. An understanding of the importance of these factors is relevant in the evaluation of child-care policies. This is particularly important in Italy, where the majority of families with children have only one child and children would benefit also from the socialization aspects of the child-care system

Trapped atoms in cavity QED: coupling quantized light and matter

On the occasion of the hundredth anniversary of Albert Einstein's annus mirabilis, we reflect on the development and current state of research in cavity quantum electrodynamics in the optical domain. Cavity QED is a field which undeniably traces its origins to Einstein's seminal work on the statistical theory of light and the nature of its quantized interaction with matter. In this paper, we emphasize the development of techniques for the confinement of atoms strongly coupled to high-finesse resonators and the experiments which these techniques enable

Early Childcare, Child Cognitive Outcomes and Inequalities in the UK

The objective of this research is to explore the impact of early childcare on child cognitive outcomes. We utilize the Millennium Cohort Survey (MCS) for the United Kingdom, which provides very detailed information about several modalities of childcare as well as several child outcomes. In our empirical analysis, we estimate the association between formal childcare and child cognitive outcomes, allowing the effect of formal childcare to be different for children from different family backgrounds, controlling for a large number of variables (regarding the child, the mother, the father, the household). In a second step, we simulate how an increase in formal childcare attendance can affect inequalities across children. Our results show that childcare attendance has a positive impact on child cognitive outcomes, which are stronger for children from low socio–economic background

Cavity QED with Single Atoms and Photons

Recent experimental advances in the field of cavity quantum electrodynamics (QED) have opened new possibilities for control of atom-photon interactions. A laser with "one and the same atom" demonstrates the theory of laser operation pressed to its conceptual limit. The generation of single photons on demand and the realization of cavity QED with well defined atomic numbers N = 0, 1, 2,... both represent important steps toward realizing diverse protocols in quantum information science. Coherent manipulation of the atomic state via Raman transitions provides a new tool in cavity QED for in situ monitoring and control of the atom-cavity system. All of these achievements share a common point of departure: the regime of strong coupling. It is thus interesting to consider briefly the history of the strong coupling criterion in cavity QED and to trace out the path that research has taken in the pursuit of this goal

Optical pumping via incoherent Raman transitions

A new optical pumping scheme is presented that uses incoherent Raman transitions to prepare a trapped Cesium atom in a specific Zeeman state within the 6S_{1/2}, F=3 hyperfine manifold. An important advantage of this scheme over existing optical pumping schemes is that the atom can be prepared in any of the F=3 Zeeman states. We demonstrate the scheme in the context of cavity quantum electrodynamics, but the technique is equally applicable to a wide variety of atomic systems with hyperfine ground-state structure.Comment: 8 pages, 4 figure