A New Kind of Case Study: Using Business Bestsellers in the Business Policy Course

The undergraduate Business Policy (Strategic Management) course is often taught by using the case method of instruction. Cases are generally regarded as especially good vehicles for giving students an understanding of the general management view of an organization. The authors believe that it is useful for students to learn much about the strategy of at least one corporation in-depth. They use a business bestseller about a particular company or industry each semester for this purpose. All undergraduate students prepare the same written assignments on this company or industry using the business bestseller as a starting point. Experience in using the business bestseller as the basis of a written assignment in the business policy course has been very positive. Students both enjoy and profit from an assignment that focuses in-depth on a major firm or industry that they can comprehend and the evolution of which they can follow. Alumni often indicate that they continue to track the company or industry after graduation. The authors believe that such written assignments help prepare students of business strategy for the real world. This revised version was published online in July 2006 with corrections to the Cover Date.     

Do Asset Market Prices Reflect Traders' Judgment Biases?

The existence of base rate fallacy (BRF) bias is explored employing: (i) a context treatment with a narrative story applied to asset markets and (ii) an isomorphic abstract setting using balls-and-bingo cages. Probability estimates reflect a BRF bias in both treatments, but is stronger with context. Prices track highest expected dividend values (HEDVs) with context, resulting in strongly biased prices relative to the Bayesian norm when biased traders have HEDVs. In the abstract treatment prices do not track HEDVs nearly as closely, resulting in prices closer to the BRF bias only when most traders hold biased beliefs.     

Volunteer Participation and Withdrawal

Volunteer behavior is often difficult to manage or control since control systems of the sort that direct behavior in most for-profit organizations are usually not available. This study introduces a tool—the psychological contract—that can give voluntary-agency administrators a powerful way to help them understand and manage volunteers' contributions to their organizations. The study finds that elements of this approach, especially the level of support the volunteer believes he or she is receiving from the organization, are especially important tools that can both increase participation in various events and reduce withdrawal or turnover intentions.     

Biological control of Pacific mites and Willamette mites in San Joaquin Valley vineyards: part III. Role of tydeid mites

Summary In the absence of spider mites, tydeids (Pronematus anconai Baker andPronematus ubiquitus [Mc Gregor]) may serve as alternate prey to maintain good numbers of the predatory mite,Metaseiulus occidentalis (Nesbitt) (Acarina, Phytoseiidae), late in the season. This late-season predator and alternate prey relationship is necessary to stabilize Pacific mite populations and perpetuate balance in San Joaquin Valley vineyards. Thriving laboratory colonies of tydeids were reared on a diet of windblown pollens, including cattail pollen (Typha sp., Typhaceae) and bottlebrush pollen (Melaleuca sp., Myrtaceae).M. occidentalis was successfully reared on a diet of tydeids and ovipositing predator females were obtained. In addition, pollen dusted on grapevines significantly increased both tydeid and indirectlyM. occidentalis populations late in the season. These studies suggest that artificially disseminating cattail pollen or manipulating good pollen producing flora in and around vineyards may be used to correct situations where Pacific mites have become serious pests. This study was supported by grant No. GB-7322 toC. B. Hyffaker by the National Science Foundation.     

Cancer Dose-Response Modeling of Epidemiological Data on Worker Exposures to Aldrin and Dieldrin

The paper applies classical statistical principles to yield new tools for risk assessment and makes new use of epidemiological data for human risk assessment. An extensive clinical and epidemiological study of workers engaged in the manufacturing and formulation of aldrin and dieldrin provides occupational hygiene and biological monitoring data on individual exposures over the years of employment and provides unusually accurate measures of individual lifetime average daily doses. In the cancer dose-response modeling, each worker is treated as a separate experimental unit with his own unique dose. Maximum likelihood estimates of added cancer risk are calculated for multistage, multistage-Weibull, and proportional hazards models. Distributional characterizations of added cancer risk are based on bootstrap and relative likelihood techniques. The cancer mortality data on these male workers suggest that low-dose exposures to aldrin and dieldrin do not significantly increase human cancer risk and may even decrease the human hazard rate for all types of cancer combined at low doses (e.g., 1 g/kg/day). The apparent hormetic effect in the best fitting dose-response models for this data set is statistically significant. The decrease in cancer risk at low doses of aldrin and dieldrin is in sharp contrast to the U.S. Environmental Protection Agency's upper bound on cancer potency based on mouse liver tumors. The EPA's upper bound implies that lifetime average daily doses of 0.0000625 and 0.00625 g/kg body weight/day would correspond to increased cancer risks of 0.000001 and 0.0001, respectively. However, the best estimate from the Pernis epidemiological data is that there is no increase in cancer risk in these workers at these doses or even at doses as large as 2 g/kg/day.     

Body image, eating disorders, and the drive for muscularity in gay and heterosexual men: the influence of media images

This Internet research project examined the relationship between consumption of muscle and fitness magazines and/or various indices of pornography and body satisfaction in gay and heterosexual men. Participants (N = 101) were asked to complete body satisfaction questionnaires that addressed maladaptive eating attitudes, the drive for muscularity, and social physique anxiety. Participants also completed scales measuring self-esteem, depression, and socially desirable responding. Finally, respondents were asked about their consumption of muscle and fitness magazines and pornography. Results indicated that viewing and purchasing of muscle and fitness magazines correlated positively with levels of body dissatisfaction for both gay and heterosexual men. Pornography exposure was positively correlated with social physique anxiety for gay men. The limitations of this study and directions for future research are outlined.     

From migrant enclaves to mainstream: Reconceptualizing informal economic behavior

The informal economy has developed in sociological theory to refer to clusters of illegal or quasi-illegal activities, usually unreported, by which people in some immigrant or ethnic communities earn income outside regular businesses and jobs. This article first extrapolates a set of characteristics beyond the legal status of such activities that define the informal economy. These provide a richer framework for future research and the basis for identifying informal economic activity in other sectors of the legitimate mainstream economy. In fact, informalization seems to have gone from marginal activities to a mainstream movement to make large sectors more fluid, network-based, and less regulated—the informalized economy. Its characteristics are identified. They overlap with the first set but differ principally in terms of extending Merton's proposition that different social structures exert different pressures to engage in non-conforming behavior. The article concludes with policy implications for fostering greater entrepreneurship in marginal migrant communities, and it suggests new ways for economic sociologists to study network transactions in modern corporations of informal economic activity through generative sociology.     

An investigation of successfully treated adolescent sex offenders

Little is known about the characteristics of adolescent sex offenders who do not reoffend. Most studies emphasize reoffense rates, recidivism and those who reoffend. Moreover, these studies provide quantitative summaries without describing the individual, his behavior, and challenges after treatment. The present study seeks to provide novel information about the life experiences of adolescent sex offenders who have not reoffended after reentering society. Through a structured questionnaire and an in-depth qualitative interview, the adolescents (N = 7) provided information regarding their life experiences after treatment with an emphasis on the challenges they face in society.     

CPOE is much more than computers

A prominent hospital in Pennsylvania turned to CPOE to help reduce medical errors and improve patient care. Learn what steps hospital officials took to establish a successful CPOE system.     

Community-Run Fisheries: Avoiding the “Tragedy of the Commons”

This paper discusses how fishing communities around the world avoid destructive overfishing through local and largely informal self-management. The paper offers many examples that undermine the widespread assumption that the tragedy of the commons is inevitable without government regulation.