Hidden Markov chains in generalized linear models

We show how the concept of hidden Markov model may be accommodated in a setting involving multiple sequences of observations. The resulting class of models allows for both interrelationships between different sequences and serial dependence within sequences. Missing values in the observation sequences may be handled in a straightforward manner. We also examine a group of methods, based upon the observed Fisher Information matrix, for estimating the covariance matrix of the parameter estimates. We illustrate the methods with both real and simulated data sets.     

Nonstationary panel data analysis: an overview of some recent developments

This paper overviews some recent developments in panel data asymptotics, concentrating on the nonstationary panel case and gives a new result for models with individual effects. Underlying recent theory are asymptotics for multi-indexed processes in which both indexes may pass to infinity. We review some of the new limit theory that has been developed, show how it can be applied and give a new interpretation of individual effects in nonstationary panel data. Fundamental to the interpretation of much of the asymptotics is the concept of a panel regression coefficient which measures the long run average relation across a section of the panel. This concept is analogous to the statistical interpretation of the coefficient in a classical regression relation. A variety of nonstationary panel data models are discussed and the paper reviews the asymptotic properties of estimators in these various models. Some recent developments in panel unit root tests and stationary dynamic panel regression models are also reviewed.     

The health needs of elders within an intentional community

A small-scale survey was carried out on the health needs of those members of the Findhorn Bay Community, in northeast Scotland, who were over the age of 60. The survey asked questions about their health, quality of life, support received and perceived needs in these areas. The responses of the elders are summarised and discussed. Most of the elders had health conditions which affected their quality of life, yet almost all were satisfied with the support they received and over half with their quality of life. Implications for the links between community, family, work and perceived health were identified. Une recherche a ete faite sur les besoins en sante des personnes ages de plus de 60 ans qui vivent dans la communaute de Findhorn Bay dans le nord est d'Ecosse. Il y avait un questionnaire qui leur demandait des informations sur leur sante, et qualite de vie; il leur etait aussi demande si ils se sentaient suffisamment soutenus et comment ils percevaient les differents besoins de leur vie. Les responses de les personnes sont brievement evoquees et discutees. Les implications concernant les rapports entre communaute, famille, travail et sante furent identifiees. La plupart d'entre eux avait des problemes de sante qui affectaient leur qualite de vie, cependant la majorite etait satisfaite du soutien recu, et plus de la moitie avec leur qualite de vie.     

Book Review Jerome B. Schneewind (ed.), Giving: Western Ideas of Philanthropy,Indiana University Press,Bloomington and Indianapolis, 1996. xvi + 230 pp.

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations -     

Information happenings: Performing reflexive organizational research 1

This article is an experiment in organizational narration. The adoption of a novel literary form enables the author to address certain contemporary themes in the reflexive presentation and reporting of organizational research. In pursuit of an alternative mode of expression, the notion of the ‘Happening’ is found to be a helpful rhetorical device. ‘Happenings’ serve as a vehicle for the theatrical reframing of important epistemological issues concerning the nature of ‘organization’, ‘research’ and ‘reporting’. This textual strategy is not, however, an end in itself. In substantive terms, it is used to explore and give voice to key thematic elements of the author's ethnographic study of a high technology project. The work of literary critic Kenneth Burke and his method of Dramatism, reflexively reframed, is employed to examine the social motives which inform ‘computer identity’, ‘information Utopias’ and ‘technicism’.     

Creative and visual methods for exploring identities

There seems to be a growing interest in Europe in the use of visual methodologies within social research – studies in which participants are asked to make creative artefacts within the research process. Although readers of Visual Studies will already be familiar with techniques such as photo‐elicitation, the use of video, drawing, collage, Lego and other methods remains somewhat new. At conferences we find that people are interested to hear about this work, but are also puzzled about various issues, such as how researchers can use and interpret such visual artefacts. After a train journey in which we talked through various aspects of work in this field, we felt it might be of some use to interested researchers and students if we published a dialogue about it.     

The agricultural ethics of biofuels: climate ethics and mitigation arguments

An environmental, climate mitigation rationale for research and development (R&D) on liquid transportation fuels derived from plants emerged among many scientists and engineers during the last decade. However, between 2006 and 2010, this climate ethic for pursuing biofuel became politically entangled and conceptually confused with rationales for encouraging greater use of plant-based ethanol that were both unconnected to climate ethics and potentially in conflict with the value-commitments providing a mitigation-oriented reason to promote and develop new and expanded sources of biofuel. I argue that the conceptual construct of technological trajectories provides a fecund approach to the ethical evaluation of R&D strategies in the case of plant-based liquid transportation fuels. The idea of a trajectory has a current use in the literature of science studies and aptly summarizes a number of themes that are critical to the evaluation of tools and techniques whose future shape, design, applications and potential consequences are necessarily somewhat speculative. In the case of biofuels, it is the imagined future trajectory that provides the basis for resistance to an emerging technology, rather than the present-day technical capabilities and the unexpected consequences of biofuel development.