The education of children in care and children in need: Who falls behind and when?

We seek to explain the development of the educational gap between children in “out‐of‐home care” (CLA), children deemed in social need (CIN), and other pupils. A cohort of 642,805 pupils aged 16 in 2013 was used to chart the educational progress of the full cohort, the CLA (n = 6,236), the CIN in 2012 or 2013 but not CLA (n = 20,384), and a sample individually matched with the CLA (n = 11,084). At age 7, attainment of the CLA and CIN was approximately 1 standard deviation lower than the cohort average and predicted attainment at 16. At this point, the persistent “CIN” (those with earlier and persistent needs) had the lowest attainment relative to others, and this declined further during secondary school. Those entering care before or during primary school had very low attainment at age 7, but their relative attainment did not decline. Attainment of CLA and CIN at age 16 likely reflects early environment, special educational needs, and poor relationships with secondary school. Policy, research, and intervention should focus on CIN as well as CLA, do so before entry to care, and take account of the onset of, and probable reasons for, educational difficulties.     

Critical research and entrepreneurship: A cross-disciplinary conceptual typology

Critical perspectives of entrepreneurship have gained increasing traction over the last two decades. The transformative potential of critical research resides in challenging some of entrepreneurship research's epistemological, ontological and theoretical assumptions, with a view to offering a range of alternatives. Critical research in entrepreneurship has remained fragmented, however, due to its heterogeneous theoretical lineages and compartmentalized and niche interests. Addressing this situation, our objective is to intensify the space of critique in entrepreneurship research by offering a theoretically informed typology that delineates different manifestations of ‘criticalness’. Our overarching contribution is to advance a typology distinguishing four ideal types of critical entrepreneurship research based on evaluative emphases (referred to as ‘valence’) and the meta-theoretical assumptions informing its critical operation (called ‘paradigmatic orientation’). By demonstrating the variegated political, ethical and ideological interests and preoccupations that critical studies serve within different management sub-disciplines, the typology provides a conceptual vocabulary for making sense of and synthesizing critical perspectives across scholarly boundaries. Also, it helps to reposition understandings of critique as gestures of negativity by stimulating a greater appreciation of the generative potential of critique and the theoretical and philosophical possibilities that this can bring to our scholarly community.     

Shifting the bell curve: the benefits and costs of raising student achievement

Benefit-cost analysis was conducted to estimate the increase in earnings, increased tax revenues, value of less crime, and reductions in welfare costs attributable to nationwide implementation of rapid assessment, a promising intervention for raising student achievement in math and reading. Results suggest that social benefits would exceed total social costs by a ratio of 28. Fiscal benefits to the federal government would exceed costs to the federal treasury by a ratio of 93. Social benefits would exceed costs to each state treasury by a ratio no lower than 286, and fiscal benefits would exceed costs to each state treasury by a ratio no lower than 5, for all but two state treasuries. Sensitivity analyses suggest that the findings are robust to a 5-fold change in the underlying parameters.     

Fertility in China: An uncertain future

As one of the world’s two population ‘billionaires’, the future of China’s population is truly of global significance. With its very low fertility and a rapidly ageing population, it might appear that the country’s famous (or notorious) family planning restrictions are somewhat anachronistic. Here, we explore the process of reform seen over the past three decades and, most recently, in late 2013. We suggest that the popular notion that the family planning restrictions are acting as a pressure valve suppressing a pent-up demand for childbearing, particularly in rural China, is likely to be inaccurate. We also suggest that further reform of the restrictions will not solve the problems of population ageing or many of the other issues widely associated with the restrictions. We conclude that the prospects for further reform are wide-ranging, but likely to be beset by many challenges.     

Stochastic relaxation,Gibbs distributions and the Bayesian restoration of images*

We make an analogy between images and statistical mechanics systems. Pixel gray levels and the presence and orientation of edges are viewed as states of atoms or molecules in a lattice-like physical system. The assignment of an energy function in the physical system determines its Gibbs distribution. Because of the Gibbs distribution, Markov random field (MRF) equivalence, this assignment also determines an MRF image model. The energy function is a more convenient and natural mechanism for embodying picture attributes than are the local characteristics of the MRF. For a range of degradation mechanisms, including blurring, non-linear deformations, and multiplicative or additive noise, the posterior distribution is an MRF with a structure akin to the image model. By the analogy, the posterior distribution defines another (imaginary) physical system. Gradual temperature reduction in the physical system isolates low-energy states (‘annealing’), or what is the same thing, the most probable states under the Gibbs distribution. The analogous operation under the posterior distribution yields the maximum a posteriori (MAP) estimate of the image given the degraded observations. The result is a highly parallel ‘relaxation’ algorithm for MAP estimation. We establish convergence properties of the algorithm and we experiment with some simple pictures, for which good restorations are obtained at low signal-to-noise ratios.     

Meeting Family Housing Needs: Experiences of Rural Women in the Midst of Welfare Reform

Though sometimes overlooked, the availability, affordability, and quality of housing in rural communities are a potential barrier to transitioning from welfare to work. In this investigation we examine housing issues confronting 17 rural women and their families who were recipients of welfare benefits in 1997. Respondents' housing accounts illustrate the significance of reliance on both government housing subsidies and informal subsidies supplied by friends, family, and more distant relatives. The study focuses on concerns women have in meeting their families shelter needs and the complexities involved in doing so. The findings of the research suggest that additional housing policy initiatives, as well as a targeted research agenda are needed, especially for families whose welfare benefits are nearing termination.     

Measuring density dependence in survival from mark-recapture data

We discuss the analysis of mark-recapture data when the aim is to quantify density dependence between survival rate and abundance. We describe an analysis for a random effects model that includes a linear relationship between abundance and survival using an errors-in-variables regression estimator with analytical adjustment for approximate bias. The analysis is illustrated using data from short-tailed shearwaters banded for 48 consecutive years at Fisher Island, Tasmania, and Hutton's shearwater banded at Kaikoura, New Zealand for nine consecutive years. The Fisher Island data provided no evidence of a density dependence relationship between abundance and survival, and confidence interval widths rule out anything but small density dependent effects. The Hutton's shearwater data were equivocal with the analysis unable to rule out anything but a very strong density dependent relationship between survival and abundance.