Single transferable vote resists strategic voting

We give evidence that Single Tranferable Vote (STV) is computationally resistant to manipulation: It is NP-complete to determine whether there exists a (possibly insincere) preference that will elect a favored candiate, even in an election for a single seat. Thus strategic voting under STV is qualitatively more difficult than under other commonly-used voting schemes. Furthermore, this resistance to manipulation is inherent to STV and does not depend on hopeful extraneous assumptions like the presumed difficulty of learning the preferences of the other voters. We also prove that it is NP-complete to recognize when an STV election violates monotonicity. This suggests that non-monotonicity in STV elections might be perceived as less threatening since it is in effect hidden and hard to exploit for strategic advantage.     

A note on trend-free block designs

Trend-free and nearly trend-free block designs were developed to eliminate polynomial trends across the plots of experimental designs. Yeh, Bradley and Notz (1985) proved that certain nearly trend-free designs are A- and D-optimal in a subclass of all competing designs. This article extends that result by enlarging the class of designs for which the optimality holds, and by increasing the class of optimality criteria from A- and D-optimality to the class of all Schur-convex nonincreasing functions.     

The Family Tribute in Charitable Bequest Giving

The propensity for charitable bequest giving is much lower than for current charitable giving. Some nonexperimental evidence suggests that this difference may be due to the relatively greater importance of family benefit considerations in charitable bequest giving than in current charitable giving. To test this concept experimentally, the effects of a family–charity conflict reduction message (that is, a reminder of family connections to a cause and an opportunity to make a tribute gift) are measured for both current and bequest giving. For those with family connections to a cause, the message generated increased interest in charitable bequest giving but not in current charitable giving. This result provides experimental support for previous suggestions regarding the special role of family considerations in charitable bequest giving. Managers may profitably consider the use of tribute messages to encourage bequest, but not necessarily current, charitable giving. Such messages were effective at increasing bequest intentions for all organization types and demographic groups tested, especially where the tribute was in honor of an ascendant such as a mother, grandmother, grandfather, or uncle.     

Sexual Attitudes and Behavior of University Students at a Rural South African University: Results of a Pilot Survey

A cross sectional qualitative and quantitative pilot survey, using self-administered questionnaire and focus group discussions, was conducted to assess the feasibility of a health promotion programme implemented at the university. About 73 students participated in the survey and the discussion. We examined gender and cultural differences on sexual attitude and behaviour. There was a strong belief that unprotected sex can lead to pregnancy and STIs. Overall participants were not sure if condom use had any negative effects, although female respondents felt that condoms affect the pleasure of sexual intercourse.

The results suggest that there is a need for health promotion programmes aimed at young adults, who attend university. The programme should improve general health knowledge, targeting health promotion and sexual risk behaviour among university students. Such a programme would have to consider gender, socio-economic circumstances as well as national and cultural background of the target population.     

THE COST-PER-LIFE-SAVED CUTOFF FOR SAFETY-ENHANCING REGULATIONS

This article develops a model of the conditions under which risk regulations that are too expensive have net adverse health effects. Two principal components of this relationship are the implicit value of life and the income elasticity of risky behaviors. Using new empirical estimates for the income elasticity of many of the most consequential risk-related behaviors, our results imply that a $15 million decrease in income is associated with the loss of an additional statistical life. Regulations that cost more than $15 million per expected life saved will have counterproductive effects on individual mortality. ( JEL LSI , 112, J17)     

Image restoration: An examination of the response strategies used by Brown and Williamson after allegations of wrongdoing

Organizations often respond to allegations of wrongdoing made by whistle-blowers. Response mechanisms may take several forms, from simply denying the wrongdoing, to offering an apology. This study sought to examine the various response strategies an organization employed after a whistle-blowing incident. Using the whistle-blowing case of Brown and Williamson Tobacco Company, this study sought to examine the different image restoration strategies the organization (Brown and Williamson) used in responding to the allegations of wrongdoing made by the whistle-blower, Dr. Jeffrey Wigand.     

Generalized exchange and propensity for military service: The moderating effect of prior military exposure

The propensity for military service (PMS) of young Americans is an important issue for our Armed Forces. Since the 1990s, the PMS of young Americans has steadily declined. Overtime, a declining PMS may cause military mission degradation, lowering of military recruitment standards, base closures, and reinstatement of the unpopular military draft system. This paper investigates the moderator effect of prior military service on the Generalized Exchange-PMS relationship. Generalized exchange is when indirect benefits such as preserving freedom and the American way of life accrue to the larger society because of an individual's military service. This paper uses a structural equation modelling approach to analyse the moderating effect of prior military exposure on prospective recruits regarding their PMS. Findings indicate that the group of prospective recruits with prior military exposure had higher levels of PMS than the group without such exposure, that is, the young people with prior military exposure are more likely to enlist in the military than the young Americans with no prior military exposure.