Operational research and the pluralist frame of reference

This paper is concerned with the practice of OR in situations of conflict. Two papers which consider the practice of OR in the public sector are criticised. Both papers do not fully recognise the implications of conflict and the guidance given for action suffers as a consequence. Conflict situations have been extensively studied by analysts of industrial relations and war. Relevant concepts from these studies are introduced which give an awareness of the problems of conflict and some sound guides for action.     

Auctions of companies

Auctions of companies are conducted in ways that contradict received auction theory. The major puzzles are: (1) sellers restrict the number of bidders; (2) sellers restrict the number of bidders; (3) bidders are screened by an initial round of non-binding bids; and (4) bidders offer - and sellers sometimes accept - preemptive bids. Puzzles (1), (2), and (4) are explained by assuming that some information concerning the company can, if released, reduce the value of the company. Puzzle (3) is explained as a way for sellers to select the highest-valued bidders; equilibrium is maintained by using the initial bids to set a reserve price for the final bidding round.     

Social work,poverty, and child welfare interventions

The relationship between children's material circumstances and child abuse and neglect raises a series of questions for policy, practice, and practitioners. Children and families in poverty are significantly more likely to be the subject of state intervention. This article, based on a unique mixed‐methods study of social work interventions and the influence of poverty, highlights a narrative from practitioners that argues that, as many poor families do not harm their children, it is stigmatizing to discuss a link between poverty and child abuse and neglect. The data reveal that poverty has become invisible in practice, in part justified by avoiding stigma but also because of a lack of up‐to‐date research knowledge and investment by some social workers in an “underclass” discourse. We argue, in light of the evidence that poverty is a contributory factor in the risk of harm, that it is vital that social work engages with the evidence and in critical reflection about intervening in the context of poverty. We identify the need for fresh approaches to the harms children and families face in order to support practices that engage confidently with the consequences of poverty and deprivation.     

CAN TRADE REALLY HURT? AN EMPIRICAL FOLLOW‐UP ON SAMUELSON'S CONTROVERSIAL PAPER

This paper investigates Samuelson's [Samuelson, P. A. “Where Ricardo and Mill Rebut and Confirm Arguments of Mainstream Economists Supporting Globalization.” Journal of Economic Perspectives, 18(3), 2004, 135–46] argument that technical progress of the trade partner may hurt the home country. We illustrate this prospect in a simple Ricardian model for situations with outward knowledge spillovers. Within this framework Samuelson's Act II effects may occur. Based on industry level panel data for 17 OECD countries for the period 1973–2000 we show econometrically that the outflow of domestic knowledge via exports or foreign direct investment (FDI) to the rest of the world may have a negative impact on industry output in the home country. This is particularly so when exporting to technologically less advanced countries and, more specifically, China. (JEL F10, F11, F14, O30)     

From compliance to self‐regulation: Development during early childhood

This study examined the development of self‐regulation during early childhood and the reciprocal relations between self‐regulation and maternal sensitivity. Data (N = 1,364) were drawn from the NICHD Study of Early Child Care and Youth Development (NICHD SECCYD). Children's situational and committed compliance were assessed in the laboratory at 24 and 36 months, delay of gratification at 54 months, self‐control at 54 months and kindergarten age, and maternal sensitivity was observed at 24, 36, and 54 months. Self‐regulation was characterized to progress from situational compliance to committed compliance and then to fully self‐motivated regulation. Findings also suggest that the development of self‐regulation reflects an ongoing transactional process in which child self‐regulation and maternal sensitivity mutually influence each other.     

Confidence intervals following Box-Cox transformation

What is the interpretation of a confidence interval following estimation of a Box-Cox transformation parameter λ? Several authors have argued that confidence intervals for linear model parameters ψ can be constructed as if λ. were known in advance, rather than estimated, provided the estimand is interpreted conditionally given $\hat \lambda$. If the estimand is defined as $\psi \left( {\hat \lambda } \right)$, a function of the estimated transformation, can the nominal confidence level be regarded as a conditional coverage probability given $\hat \lambda$, where the interval is random and the estimand is fixed? Or should it be regarded as an unconditional probability, where both the interval and the estimand are random? This article investigates these questions via large-n approximations, small- σ approximations, and simulations. It is shown that, when model assumptions are satisfied and n is large, the nominal confidence level closely approximates the conditional coverage probability. When n is small, this conditional approximation is still good for regression models with small error variance. The conditional approximation can be poor for regression models with moderate error variance and single-factor ANOVA models with small to moderate error variance. In these situations the nominal confidence level still provides a good approximation for the unconditional coverage probability. This suggests that, while the estimand may be interpreted conditionally, the confidence level should sometimes be interpreted unconditionally.     

Recognition as a framework for ethical participatory research: developing a methodology with looked after young people

This paper reflects on a project which involved the authors working in partnership with a working group of looked after children and young people established by a small unitary local authority to develop a pledge defining what support, services and care looked after children can expect from them. The authors aimed to develop an approach which ensured that the young people’s voices were heard and also that the well-being of those involved as participants remained at the centre of the process throughout. We argue that Honneth’s theory of recognition, which identifies three forms of recognition as important to ensure that human beings feel assured of their dignity or integrity – in brief love, rights and solidarity – offers a useful framework for achieving this. The main principles which emerged were: (i) building the research around the young people’s existing relationships, (ii) respecting the group’s decisions and (iii) honouring the views expressed.     

The publishing of recent economics Ph.D. recipients

We present publication data for recent graduates of 50 economics Ph.D. programs. The data show that publishing output is highly concentrated among graduates of the top programs; the top three programs, for example, generate more than 25% of aggregate publishing output in our sample. We use the data to construct a set of program rankings based on both per capita and aggregate graduate publication and a comparison of faculty performance to graduate performance. The graduate/faculty comparison reveals that programs may be identical in the output of their faculties but starkly different in the output of their graduates.