Discount-neutral utility models for denumerable time streams

This paper formulates and axiomatizes utility models for denumerable time streams that make no commitment in regard to discounting future outcomes. The models address decision under certainty and decision under risk. Independence assumptions in both contexts lead to additive or multiplicative utilities over time periods that allow unambiguous comparisons of the relative importance of different periods. The models accommodate all patterns of future valuation. This discount-neutral feature is attained by restricting preference comparisons to outcome streams or probability distributions on outcome streams that differ in at most a finite number of periods.     

A cautionary tale

Anthony Edwards wrote this cautionary tale for genetics students at Stanford University whom he was teaching in 1965. It has not previously been published. "Its appearance now is due to my having been asked whether a copy from the papers of the Nobel Laureate Joshua Lederberg might be put on the web by the US National Library of Medicine", he says. "Lederberg was Professor of Genetics at Stanford at the time and I must have given him a copy. More remarkably, he thought it worth keeping." It concerns what is known as Simpson's paradox.     

Planning in a state of turbulence

This paper is concerned with an exploration of the role of the long range planner, whether in the private or public sector of the economy, and the impact made upon the processes of his work by government's increasing propensity to manipulate the economy. The authors' researches over the last 2 years into the comparative nature of planning processes in the U.K. economy have made it abundantly clear to them that planners are increasingly concerned at the dangerous potential of such impact upon their forecasting procedures. The emphasis here will rest upon the planner in private enterprises, although the authors' work in both local government and the nationalized enterprises suggest that the problem is of equal importance in these sectors.The authors consider first the past nature of the search processes in long range planning and the context of such attempts to narrow down the range of variables that form the enterprise's perception of its future. Secondly, they examine the emerging discontinuity and the changing role of government, with particular reference to indicative planning concepts. Then they introduce some of the findings of a recent survey of attitudes towards long range planning in the construction industry of the U.K., a sector vitally influenced by turbulence in the economy and with particular interest in government's ideas of macro-planning. Finally Edwards and Harris examine the implications to government and to planners of their findings.     

Statisticians in stained glass houses

Statistics and stained glass may seem an odd combination, but the windows of Gonville & Caius College, Cambridge, say otherwise. Anthony Edwards explains.     

REVIEWS

Bigner, J. J., & Wetchler, J. L. (Eds.). (2004). Relationship therapy with same-sex couples .
Cling, B. J. (Ed.). (2004). Sexualized violence against women and children: A psychology and law perspective .
Folberg, J., Milne, A., & Salem, P., (Eds.). (2004). Divorce and family mediation: Models, techniques and applications .
Rholes, S. W., & Simpson, J. A. (Eds.). (2004). Adult attachment: Theory, research and clinical implications .
Sperry, L. (Ed.). (2004). Assessment of couples and families: Contemporary and cutting edge strategies .     

The Moral Dilemmas of Positive Discrimination

Positive discrimination is a contentious topic both politically and in social policy terms. Reasoned debate about it has been hampered by a fundamental misunderstanding about what it is and what makes it peculiar, that took hold in the immediate post-Plowden era. This paper argues that what distinguishes positive discrimination from other practices with which it has been confused, such as selectivity and positive action, can only be understood in terms of basic canons of social or distributive justice. Having established the moral standing of positive discrimination, the paper goes on to examine arguments that attempt to “justify” it either in terms of justice itself or of utility, and to identify the circumstances in which its use might be “justified” in Britain. The questions that surround its proper use are identified as being in large measure moral dilemmas.