Reconsidering the role of the digital in global production networks

Global production networks (GPNs) have become a key framework in conceptualizing linkages, power and structure in globalized production. However, this framework has been less successful in integrating the influence of digital information and ICTs in production, and this problematic in a world where relationships and power are increasingly mediated by digital information flows and resources. We thus look to adapt the GPN framework to allow more substantive analysis of ‘the digital’. Primarily, this is done through a theoretical analysis of the three core categories of the GPN framework – embeddedness, value and networks – to highlight how these categories can better integrate a more dynamic and contested conceptualization of the digital. Illustrations from research on the digitalization of tea sector GPNs in East Africa highlight how these theoretical advances provide new insights on the digital and its expanding role in economic production.     

INVESTING IN HEALTH: THE LONG‐TERM IMPACT OF HEAD START ON SMOKING

Head Start is a comprehensive, early childhood development program designed to augment the human capital and health capital levels of disadvantaged children. Evaluations of Head Start have tended to focus on cognitive outcomes; however, there is increasing recognition that other important outcomes can be influenced by participation. This article evaluates the long‐term impact of Head Start participation on smoking behavior in young adulthood by comparing the behavior of adults who attended Head Start with those of siblings who did not. We find that participation in Head Start reduces the probability that an individual smokes cigarettes as a young adult. (JEL I12, I28, I38)     

The French puéricultrice

SUMMARY. This paper looks at the French equivalent of the British health visitor—the puéricultrice. Through consideration of the role of the State in child surveillance and official social policy regarding children, it explores the hypothesis that the work of these two sets of workers (and hence their perspectives) is to a large extent socially constructed. The paper is based on an exploratory study conducted in 1987 and funded by the Institute of Education, London. Data on health visitors are drawn from a recent research project at Thomas Coram Research Unit, ‘Parents and Professionals—perspectives on child health care’, carried out by the author together with Berry Mayall. The Economic and Social Research Council funded the study from 1985–1988.     

Exploring multivariate data using directions of high density

The most common techniques for graphically presenting a multivariate dataset involve projection onto a one or two-dimensional subspace. Interpretation of such plots is not always straightforward because projections are smoothing operations in that structure can be obscured by projection but never enhanced. In this paper an alternative procedure for finding interesting features is proposed that is based on locating the modes of an induced hyperspherical density function, and a simple algorithm for this purpose is developed. Emphasis is placed on identifying the non-linear effects, such as clustering, so to this end the data are firstly sphered to remove all of the location, scale and correlational structure. A set of simulated bivariate data and artistic qualities of painters data are used as examples.