The Hype and Hope of Interdisciplinary Management Studies

Demand for multi-, if not interdisciplinary, research is currently strong, especially from funding bodies. But it often leaves little more than a shrill echo within the corridors of management departments and business schools. Academic respectability still seems to remain with the single disciplinary approach of economics, finance, sociology, etc. and also increasingly with those management subjects such as marketing, human-resource management or operations research that depend upon other social sciences for their existence, although the latter have considerable difficulty in gaining recognition and respect from those in the disciplines from which they draw their theoretical inspiration. As academics struggle to find ways of bridging their separate and distinct disciplines, practitioner divisions are being questioned and eroded as they are increasingly regarded as dysfunctional in achieving the flexibility and speedy responses demanded of the modern corporation. This paper seeks to develop an analytical understanding of the obstacles to the development of interdisciplinary research and teaching in management.     

The ‘Not to be Opened’ Letter: Family Secrets,Hidden Knowledge and Violate Prohibitions

This paper presents a view of family secrets that is informed by their broader biological and cultural context. Two particular perspectives are employed. First, Bateson's biologically-based concept of ‘sacred knowledge’ is extended to apply to human cultural practices, such as the ban on certain forms of intergenerational instruction. Second, the anthropological concept of ‘taboo’, as expressed in cultural practices, myth and folklore, is used to provide insight into the mixture of awe and disgust which surrounds secrets, and into the possibilities for both positive and negative outcomes when prohibitions are violated. From these complementary viewpoints, the author explores why family secrets arouse such intensely polarised feelings in helping professionals as well as in family members, and suggests more morally neutral frames within which therapists might view secretkeeping behaviour. A case illustration is used to illustrate potential problems with the assumption that secret knowledge should always be shared across generational bound-aries. Finally, the ‘not to be opened’ letter is introduced as a therapeutic option in cases where the clients and/or the therapist are unclear about the wisdom of revealing a particular secret.     

LEARNING TO FORECAST PRICE

We study learning in an individual choice price forecasting task in which subjects must learn coefficients of two independent variables in stationary linear stochastic processes. The 99 subjects each forecast in 480 trials with feedback. Learning is tracked by fitting individual forecasts to the independent variables. Results: (1) Learning is fairly consistent with respect to objective values, but with slight tendency toward overresponse. (2) Learning is noticeably slower than the Marcet-Sargent ideal. Two striking treatment effects are tendencies toward (3) overresponse with high background noise and (4) underresponse with asymmetric coefficients.     

NOTES and COMMENTARIES

With this issue, we are initiating a section for notes and commentaries, to which contributions are invited. It is our hope that this section will serve an important purpose in permitting our contributors to publish brief reports, notes on research, commentaries, and other short items of a scholarly nature which do not ordinarily fit within the framework of an article .—T he E ditors     

The sterile insect release method on species with two-stage life cycles

Summary A continuous-time density dependent model was constructed of a species with a two stage life cycle. This model has a unique stable equilibrium. With the introduction of steriles at constant rate a second positive unstable steady state appears; this condition does not depend on the mode of action within the life cycle of the density dependence or its relative strength. A comparison was made of the effects of having the density dependence in each of larval and adult recruitment and larval and adult losses. It was found that if only adult recruitment is denisty dependent, then adult numbers can actually increase with the release of steriles provided density independent recruitment greatly exceeds density independent losses. Sterile releases were often more effective against larvae than against adults, although in some cases not importantly so. Density dependence in recruitment gives much lower equilibrium values than when density dependence of comparable strength is in the mortality. The release rates needed to cause extinction were generally between 0.1 and 0.5 of the larval equilibrium with no sterile releases except when the density dependence is predominantly in adult recruitment, in which case much higher release rates are required.     

The Effect of Social Presence on the Facial and Verbal Expression of Emotion and the Interrelationships Among Emotion Components

Women were videotaped while they spoke about a positive and a negative experience either in the presence of an experimenter or alone. They gave self-reports of their emotional experience, and the videotapes were rated for facial and verbal expression of emotion. Participants spoke less about their emotions when the experimenter (E) was present. When E was present, during positive disclosures they smiled more, but in negative disclosures they showed less negative and more positive expression. Facial behavior was only related to experienced emotion during positive disclosure when alone. Verbal behavior was related to experienced emotion for positive and negative disclosures when alone. These results show that verbal and nonverbal behaviors, and their relationship with emotional experience, depend on the type of emotion, the nature of the emotional event, and the social context.     

An Analysis of the Health Benefits Associated with the Use of MTBE Reformulated Gasoline and Oxygenated Fuels in Reducing Atmospheric Concentrations of Selected Volatile Organic Compounds

To assess the health benefits gained from the use of cleaner burning gasoline, an analysis was conducted of changes in the atmospheric concentration of eight VOCs: acetaldehyde, benzene, 1,3-butadiene, ethylbenzene, formaldehyde, POM, toluene, and xylenes resulting from the use of reformulated gasoline and oxyfuel containing the additive MTBE. Modeled ambient air concentrations of VOCs were used to assess three seasonally-based scenarios: baseline gasoline compared to (a) summer MTBE:RFG, (b) winter MTBE:RFG, and (c) MTBE oxyfuel. The model predicts that the addition of MTBE to RFG or oxyfuel will decrease acetaldehyde, benzene, 1,3-butadiene and POM, but increase formaldehyde tailpipe emissions. The increased formaldehyde emissions, however, will be offset by the reduction of formaldehyde formation in the atmosphere from other VOCs. Using a range of plausible risk estimates, the analysis predicts a positive health benefit, i.e., a decline in cancer incidence associated with use of MTBE:RFG and MTBE oxyfuel. Using EPA cancer risk estimates, reduction in 1,3-butadiene exposure accounts for the greatest health benefit while reduction of benzene exposure accounts for the greatest health benefits based on alternative risk estimates. An analysis of microenvironment monitoring data indicates that most exposures to VOCs are significantly below levels of concern based on established margin-of-safety standards. The analysis does suggest, however, that health effects associated with short-term exposures to acetaldehyde and benzene may warrant further investigation.