Robust Predictions for Bilateral Contracting with Externalities

The paper studies bilateral contracting between one principal and N agents when each agent's utility depends on the principal's unobservable contracts with other agents. We show that allowing deviations to menu contracts from which the principal chooses bounds equilibrium outcomes in a wide class of bilateral contracting games without imposing ad hoc restrictions on the agents' beliefs. This bound yields, for example, competitive convergence as N →∞ in environments in which an appropriately‐defined notion of competitive equilibrium exists. We also examine the additional restrictions arising in two common bilateral contracting games: the “offer game” in which the principal makes simultaneous offers to the agents, and the “bidding game” in which the agents make simultaneous offers to the principal.     

Beyond the Pale of Psychoanalysis: Relational Theory and Generalist Social Work Practice

Many have noted the consonance between contemporary relational theory and classic social work values and practice principles such as person in environment and starting where the client is. However, there have been few efforts to explore relational theory’s utility to the generalist social work framework. This paper takes the position that relational theory’s intersubjective stance lends new coherence to classic social work principles, and therefore elucidates the process aspects of evidence-based social work practice. In order to illustrate this point, the author applies relational theory to implementation issues around early childhood home visitation with Spanish-speaking immigrant clients—a social work service modality that, like so many others, does not fall into the category of individual psychotherapy in the context of private practice.     

Chinese Twin Children Reared Apart and Reunited: First Prospective Study of Co-Twin Reunions

China's one-child policy led to the abandonment of tens of thousands of infants. Included among these children were twins who were adopted and reared separately. Since 2006, 10 reunited twin sets participated in the first prospective study of twins reared apart. This exploratory study reports a qualitative analysis of the children's reactions to their first meeting with, and departure from, their co-twin. The majority of twins 18 months of age and older displayed strong attraction upon first meeting. Leave-taking included sadness, but responses varied across pairs. Theoretical interpretations of the findings and implications for parenting reared-apart adopted twins are provided.     

Temporal Vertigo: The Paradoxes of Ageing

“I don’t feel old,” most older informants proclaim. That affirmation tells us much about the stigma surrounding old age. It tells us also about the temporal vertigo we face as we age if contemplating the multiplicity of continuities and discontinuities over time. Ageing is of interest to those who have always been skeptical about any notion of the “true self,” allowing us to puzzle over how the account the old give of themselves—if anyone is still listening—will rely upon their ability to incorporate differing versions of the self, woven into the volatilities of memory and fantasy. I explore some of the radical ambiguities in the speech or writing of those thinking about ageing. While pondering the fluctuating ties between younger and older selves, I also venture into the hazards of desire in old age and the apparently contrasting situation of ageing men compared with ageing women. Old age may no longer be the condition that dare not speak its name, but it remains the identity about which most prefer to stay silent.     

Learned Mothering: Raising a Child with ADHD

This is a report of the findings of an exploratory research study, using the qualitative method of Grounded Theory, of the experience of 25 mothers of children with Attention-deficit Hyperactivity Disorder (ADHD). These mothers have been encumbered with great responsibilities caring for and managing their ADHD children, but little has been written that addresses their experience and their need for understanding and support. Because their children experience the world in highly idiosyncratic ways, the mothers need to learn to parent their children accordingly and not depend on the empathic responsiveness that comes intuitively with normal children. Discussion of theoretical and clinical issues should prove helpful to social workers and other clinicians.     

PARAMETER ESTIMATION FOR LOW-ORDER AUTO-REGRESSIVE MODELS WITH MISSING VALUES

Longitudinal data analysis in epidemiological settings is complicated by large multiplicities of short time series and the occurrence of missing observations. To handle such difficulties Rosner & Muñoz (1988) developed a weighted non-linear least squares algorithm for estimating parameters for first-order autoregressive (AR1) processes with time-varying covariates. This method proved efficient when compared to complete case procedures. Here that work is extended by (1) introducing a different estimation procedure based on the EM algorithm, and (2) formulating estimation techniques for second-order autoregressive models. The second development is important because some of the intended areas of application (adult pulmonary function decline, childhood blood pressure) have autocorrelation functions which decay more slowly than the geometric rate imposed by an AR1 model. Simulation studies are used to compare the three methodologies (non-linear, EM based and complete case) with respect to bias, efficiency and coverage both in the presence and in the absence of time-varying covariates. Differing degrees and mechanisms of missingness are examined. Preliminary results indicate the non-linear approach to be the method of choice: it has high efficiency and is easily implemented. An illustrative example concerning pulmonary function decline in the Netherlands is analyzed using this method.     

Super Majoritarianism and the Endowment Effect

The American and some other constitutions entrench property rights by requiring super majoritarian voting as a condition for amending or revoking their own provisions. Following Buchanan and Tullock [The Calculus of Consent, Logical Foundations of Constitutional Democracy (University of Michigan Press, Ann Arbor), 1962], this paper analyzes individuals' interests behind a veil of ignorance, and shows that under some standard assumptions, a (simple) majoritarian rule should be adopted. This result changes if one assumes that preferences are consistent with the behavioral phenomenon known as the endowment effect. It then follows that (at least some) property rights are best defended by super majoritarian protection. The paper then shows that its theoretical results are consistent with a number of doctrines underlying American Constitutional Law.     

The mental health status of Latino children in the public child welfare system: a look at the role of generation and origin

As the number of Latino children in public child welfare continues to grow, it is necessary to understand how their mental health is faring. The paper examines emotional and behavioural needs among Latino children who had contact with the public child welfare system. The purpose of this longitudinal study was twofold: to examine the severity of emotional and behavioural problems, and to assess the predictive role of generation status and Latino origin. Latent growth models were completed using the National Survey on Children and Adolescent Well‐Being. The predictive model for the externalizing CBCL scale revealed that generation status and Latino origin were significant predictors. At baseline, Puerto Rican children exhibited higher rates of externalizing problems compared with Mexican children. Over time children who were first/second generation tended to have lower scores compared with the third‐plus generation children. Implications for practise are discussed.