RELATIVISM AS A CULTURAL INFLUENCE ON TWENTIETH CENTURY DECISION MAKING

Culturally determined norms are seen as guides to the subjective components in the decision process. An understanding of normative elements in choicemaking must therefore begin with an analysis of the culture relevant to the decision. Ways in which the Western twentieth-century intellectual and cultural climate have influenced the ability of modern managers to make value-laden decisions are examined. Implications of relativism for management decision making along with the influences of relativistic decision making on organizational health also are discussed.     

ISLANDS, INDEXATION AND MONETARY POLICY

This paper develops a synthesized macroeconomic model that incorporates the local-global informational asymmetries of an "islands" economy into a setting characterized by endogenous wage indexation. In such an economy, agents are unable both to filter out the separate influences of demand and supply shocks on observed output prices and to distinguish between the separate price effects of local and aggregate disturbances, so that optimal wage indexation depends upon both the variances of supply and demand disturbances and the information-conditioned forecasts of agents. As a result, optimal monetary policy generally depends upon the variances of local and aggregate supply and demand.     

Generating Correlation Matrices With Specified Eigenvalues Using the Method of Alternating Projections

ABSTRACT

This article describes a new algorithm for generating correlation matrices with specified eigenvalues. The algorithm uses the method of alternating projections (MAP) that was first described by Neumann. The MAP algorithm for generating correlation matrices is both easy to understand and to program in higher-level computer languages, making this method accessible to applied researchers with no formal training in advanced mathematics. Simulations indicate that the new algorithm has excellent convergence properties. Correlation matrices with specified eigenvalues can be profitably used in Monte Carlo research in statistics, psychometrics, computer science, and related disciplines. To encourage such use, R code (R Core Team) for implementing the algorithm is provided in the supplementary material.     

Obtaining Distribution Functions by Numerical Inversion of Characteristic Functions with Applications

We review and discuss numerical inversion of the characteristic function as a tool for obtaining cumulative distribution functions. With the availability of high-speed computing and symbolic computation software, the method is ideally suited for instructional purposes, particularly in the illustration of the inversion theorems covered in graduate probability courses. The method is also available as an alternative to asymptotic approximations, Monte Carlo, or bootstrap techniques when analytic expressions for the distribution function are not available. We illustrate the method with several examples, including one which is concerned with the detection of possible clusters of disease in an epidemiologic study.     

Does “Smarter” Lead to Safer? An Assessment of the US Border Accords with Canada and Mexico

The terrorist attacks of September 11 and their immediate aftermath along the US‐Canadian and US‐Mexican borders focused attention on border management strategies in ways previously unimaginable. Suddenly confronted by the fact that existing systems and processes were not particularly effective either at protecting security or facilitating legitimate traffic, the United States, in conjunction with the Canadian and Mexican Governments, demonstrated an uncharacteristic willingness to reconceptualize its approach to physical borders. While initiating a series of internal policy adjustments to secure themselves against terrorist threats, the US, Canadian, and Mexican Governments also signed two bilateral agreements — the 12 December 2001 United States‐Canada Smart Border Declaration and the 22 March 2002 United States‐Mexico Border Partnership Agreement. These agreements represent an important development in the US's relationship with each of its North American neighbours, acknowledging not only the deep economic, social, and cultural ties, but also the new reality that the United States cannot attain the additional security it desires through unilateral actions alone. Thus, while September 11 forced a reassessment of vulnerabilities, it simultaneously provided the United States an opportunity to work more systematically with its contiguous neighbours for security benefits, a realization likely to flow into other areas where the benefits of cooperation eclipse those of unilateralism. This paper analyses the first year of the two border accords, tracking their implementation and evaluating their successes and failures. Most importantly, the paper outlines outstanding challenges, highlights steps that the governments should take to achieve additional border security and efficiency, and draws conclusions regarding factors likely to make their efforts more, or less, successful.     

The Backroom Effect in Retail Operations

Traditional inventory models fail to take into account the dynamics between the retail sales floor and the backroom, commonly used by retailers for extra storage. When a replenishment order for a given item arrives at a retail store, it may not fit on the allocated shelf space, making backroom storage necessary. In this article, we introduce the backroom effect (BRE) as a consequence of misalignment of case pack size, shelf space, and reorder point. This misalignment results from the fragmented nature of inventory policy decision making in the retail industry and affects basic trade‐offs in inventory models. We specify conditions under which the BRE exists, quantify the expected amount of backroom inventory, derive an optimal short‐term inventory policy, and assess the impact of the BRE on the optimal inventory policy and total costs. Our results indicate that ignoring the BRE leads to artificially high reorder points and higher total costs. The paper concludes with a discussion of theoretical and managerial implications.     

Gay men with AIDS: perceptions of social support and adaptational outcome

Using a multivariate design, this study examined social support as a mediating variable between the stressor of AIDS and adaptational outcome in a culturally and socioeconomically diverse sample of 60 urban gay men with AIDS. Whereas earlier studies have suggested that social support for gay men with AIDS is often lacking or ineffective, findings in this study indicated that family of origin and friends may provide more support to gay men with AIDS than has been generally recognized. Both family of origin and friend support were strongly correlated with positive outcomes, indicating that social support was not only forthcoming but was also effective. The relationship between family of origin support and positive outcomes was particularly strong.     

The likelihood approach for the comparison of medical diagnostic system with multiple binary tests

Detection (diagnosis) techniques play an important role in clinical medicine. Early detection of diseases could be life-saving, and the consequences of false-positives and false-negatives could be costly. Using multiple measurements strategy is a popular tool to increase diagnostic accuracy. In addition to the new diagnostic technology, recent advances in genomics, proteomics, and other areas have allowed some of these newly developed individual biomarkers measured by non-invasive and inexpensive procedures (e.g. samples from serum, urine or stool) to progress from basic discovery research to assay development. As more tests become commercially available, there is an increasing interest for clinicians to request combinations of various non-invasive and inexpensive tests to increase diagnostic accuracy. Using information regarding individual test sensitivities and specificities, we proposed a likelihood approach to combine individual test results and to approximate or estimate the combined sensitivities and specificities of various tests taking into account the conditional correlations to quantify system performance. To illustrate this approach, we considered an example using various combinations of diagnostic tests to detect bladder cancer.     

A Cross-species Comparison of Facial Morphology and Movement in Humans and Chimpanzees Using the Facial Action Coding System (FACS)

A comparative perspective has remained central to the study of human facial expressions since Darwin’s [(1872/1998). The expression of the emotions in man and animals (3rd ed.). New York: Oxford University Press] insightful observations on the presence and significance of cross-species continuities and species-unique phenomena. However, cross-species comparisons are often difficult to draw due to methodological limitations. We report the application of a common methodology, the Facial Action Coding System (FACS) to examine facial movement across two species of hominoids, namely humans and chimpanzees. FACS [Ekman & Friesen (1978). Facial action coding system. CA: Consulting Psychology Press] has been employed to identify the repertoire of human facial movements. We demonstrate that FACS can be applied to other species, but highlight that any modifications must be based on both underlying anatomy and detailed observational analysis of movements. Here we describe the ChimpFACS and use it to compare the repertoire of facial movement in chimpanzees and humans. While the underlying mimetic musculature shows minimal differences, important differences in facial morphology impact upon the identification and detection of related surface appearance changes across these two species.