Cost-efficient observation of working postures from video recordings--more videos, more observers or more views per observer?

In ergonomics, assessing the working postures of an individual by observation is a very common practice. The present study investigated whether monetary resources devoted to an observational study should preferably be invested in collecting many video recordings of the work, or in having several observers estimate postures from available videos multiple times. On the basis of a data set of observed working postures among hairdressers, necessary information in terms of posture variability, observer variability, and costs for recording and observing videos was entered into equations providing the total cost of data collection and the precision (informative value) of the resulting estimates of two variables: percentages time with the arm elevated <15 degrees and >90 degrees. In all 160 data collection strategies, differing with respect to the number of video recordings and the number of repeated observations of each recording, were simulated and compared for cost and precision. For both posture variables, the most cost-efficient strategy for a given budget was to engage 4 observers to look at available video recordings, rather than to have one observer look at more recordings. Since the latter strategy is the more common in ergonomics practice, we recommend reconsidering standard practice in observational posture assessment.     

The more attacks,the more retweets: Trump’s and Clinton’s agenda setting on Twitter

The present study aims to contribute to the agenda setting theory and political campaign literature by examining candidates’ tweets and their effects on voter reactions in the context of the 2016 U.S. presidential election. Content analysis of Donald Trump’s and Hillary Clinton’s 3-month tweets (N = 1575) revealed that half of their tweets were attacks, and those attacks were effective in attracting favorites and retweets for both candidates. Their tweets reflected their issue agendas highlighted on campaign websites, and they mainly emphasized issues owned by their parties in both venues. Some of the issues Trump stressed in his tweets (i.e., media bias and Clinton’s alleged dishonesty) drew significantly more favorites and retweets, suggesting public agenda setting possibilities through Twitter. None of the issues Clinton emphasized were significant predictors of favorites and retweets. However, visual elements such as pictures and videos were effective in bringing voter reactions for Clinton. While Clinton sent twice as many tweets as Trump did during the three months, Trump’s tweet received in average three times as many favorites and retweets as Clinton’s. Overall, the results show that Trump was more successful than Clinton in drawing public attention to preferred issues through Twitter.     

Why are we more likely to tip some service occupations than others? Theory,evidence, and implications

Ideas about why consumers tip some service occupations more often than others are tested using occupation scores derived from online ratings of 122 service occupations. Results indicate that U.S. consumers are more likely to tip occupations for which (i) workers’ performances can be more easily evaluated by consumers than by managers, (ii) workers provide customized service, (iii) workers’ income, skill and needed judgment are low, and (iv) workers are less happy than customers during the service encounter. Occupations with greater frequency of customer patronage and/or greater likelihood of encountering the same service provider on multiple service occasions are not more likely than other occupations to be tipped. These findings support some and disconfirm other expectations derived from a theory that occupational differences in tipping are attributable to occupation characteristics that more strongly/consistently evoke motives for tipping. They also identify types of services for which counter-normative tipping policies are more or less likely to be successful and suggest sources of resistance that must be overcome if those policies are to succeed.     

More structural holes,more risk? Network structure and risk perception among marijuana growers

This study examines the relationship between network structure and risk perceptions. We use self-report data on 359 illicit marijuana growers and their personal co-worker networks. Our results show that growers with more structural holes in their co-worker network perceive higher risk of apprehension from law enforcement. We argue that this result is facilitated by two mechanisms: 1) the amount and quality of information available to growers about risks and detection, which uses guidance from Stafford and Warr’s (1993) concept of vicarious deterrence; and, 2) the trust inherent in their network and the growers’ self-awareness of their own network position, which relies on Coleman’s (1988) and Burt’s (2005) ideas of network closure as a protective factor.     

Number of sexual partners and sexual assertiveness predict sexual victimization: do more partners equal more risk?

In previous studies, number of sexual partners and sexual assertiveness were examined as independent risk factors for sexual victimization among college women. Using a sample of 335 college women, this study examined the interaction of number of sexual partners and sexual assertiveness on verbal sexual coercion and rape. Approximately 32% of the sample reported unwanted sexual intercourse, 6.9% (n = 23) experienced verbal sexual coercion, 17.9% (n = 60) experienced rape, and 7.2% (n = 24) experienced both. As number of sexual partners increased, instances of verbal sexual coercion increased for women low in relational sexual assertiveness but not for women high in relational sexual assertiveness. A similar relationship was not found for rape. Among women who experienced both verbal sexual coercion and rape, increases in number of partners in the context of low refusal and relational assertiveness were associated with increases in verbal sexual coercion and rape. Findings suggest sexual assertiveness is related to fewer experiences of sexual coercion.     

Peace, reconciliation and a shared future: a policy shift or more of the same?

Developments in the late 1990s, including paramilitary cease-firesand the advent (albeit, short-lived) of devolved Government,offered a new dispensation from which to appraise the communityrelations problem in Northern Ireland and advocate policy action.This paper considers an emergent policy framework entitled AShared Future. Drawing on the experience of delivering betterrelations through education in Northern Ireland, it argues thatwhilst A Shared Future reflects progress in how the problemof community relations is defined, many uncritical assumptionsare made about the potential of suggested actions to addressproblems of intergroup fear, mistrust and hostility.     

Are nurses more altruistic than real estate brokers?

We report results from a dictator game experiment with nurse students and real estate broker students as dictators, and Amnesty International as the recipient. Although brokers contributed substantial amounts, nurses contributed significantly more, on average 76% of their endowment. In a second part, subjects chose between a certain repetition of the experiment and a 50-50 chance of costly exit. About one third of the brokers and half of the nurses chose the exit option. While generosity was indeed higher among nurses, even when taking exits into account, the difference cannot readily be attributed to different degrees of altruism.     

Does the Borda rule provide more than a ranking?

Consider the following problem: a set of candidates {x, y, z} has to be ranked from best to worse by a committee. Each member of the committee provides his own ranking of the three candidates and you decide to use the Borda method to aggregate the rankings. The resulting scores are as follows: 107 for x, 106 for y and 51 for z. Would you conclude that x is better than y? Probably not, because the difference between the scores of x and y is small. The only conclusion you would draw is that z definitely is the worst candidate. But, is it meaningful to consider differences of Borda scores? We characterize the Borda method in this new framework and find conditions that are very close to those characterizing the classical Borda method. Throughout our paper, we consider a generalization of the Borda method designed to aggregate fuzzy relations. Received: 2 March 1998/Accepted: 5 May 1999     

Psychological distress and mortality: are women more vulnerable?

Does psychological distress increase mortality risk? If it does, are women more vulnerable than men to the effect of distress on mortality? Drawing from cumulative disadvantage theory, these questions are addressed with data from a 20-year follow-up of a national sample of adults ages 25-74. Event history analyses were performed to examine mortality from general and specific causes for men and women. Findings reveal that the effect of psychological distress on all-cause mortality was nonlinear for men. Moderate amounts of distress were associated with lower mortality risk, but high levels of distress raised men's mortality risk. Moreover the curvilinear relationship between distress and mortality varied by cause of death for men and women. Men with high levels of psychological distress were more vulnerable to ischemic heart disease mortality. Women with high levels of distress were more vulnerable to cancer mortality.     

Do pledges lead to more volunteering? An experimental study

The effect of pledges on donations is ambiguous. Pledges can boost donations because pledges make it easier for people to accept a request without incurring the costs of donating right away. However, pledges can also decrease donations because individuals who pledge renege on their promises. In this paper, we study the effect of pledges on volunteering using an online experiment. We find that pledges decrease immediate rejection to volunteering requests, but pledges are often reneged later, resulting in no overall change in volunteering rates. We provide a theoretical framework for understanding the conditions under which these results emerge.     

“Getting pregnant might make me seem more normal to them”: Attitudes,experiences, and gendered nuances regarding pregnancy and parenting among youths experiencing homelessness

Homelessness among youths exacerbates an array of challenging life experiences, notable examples of which are pregnancy and parenting. Research is lacking on young men’s attitudes and experiences, and also the influences which homeless youths’ gender identities and sexualities may have on their pregnancy and parenting outcomes and trajectories. This study qualitatively explores gender differentials, including youths’ gender identities and sexual orientations, with regard to their attitudes and experiences of pregnancy and parenting while homeless. Qualitative data were obtained from interviews with a diverse sample of 30 female, male, and transgender homeless youths, ages 18 to 21. Findings revealed that topics of pregnancy and parenting represent a wide range of complexities, different standards, and threats for homeless youths. Although pregnancy is often viewed positively within this community, it is received and experienced differently for each gender and sexuality. Results demonstrate that youths’ unimpeded access to and knowledge of all available reproductive and sexual health care services is essential. These services must be designed and delivered for youths of all gender identities and sexual orientations. Interventions and resources on parenting and co-parenting, particularly models that more inclusively engage a greater diversity of young parents’ involvement, are also urgently needed.     

Why do men get more heart disease than women? An international perspective

Biological, behavioral, and psychosocial contributions to the gender gap in coronary heart disease (CHD) are discussed. Although CHD is the Number 1 cause of death for both sexes in the industrialized world, CHD mortality rates between these countries are larger than those between men and women, suggesting that biological factors are not the sole influences on the gender gap in CHD. Traditional coronary risk factors cannot explain the rapid increase in CHD mortality among middle-aged men in many of the newly independent states of eastern Europe. However, eastern European men score higher on stress-related psychosocial coronary risk factors (e.g., social isolation, vital exhaustion) than men living in the West. Comparisons between the sexes also reveal gender differences in psychosocial and behavioral coronary risk factors, including excessive alcohol consumption and smoking, favoring women. Overall, it appears that men's coping with stressful events may be less adaptive physiologically, behaviorally, and emotionally, contributing to their increased risk for CHD.     

Financial forecasts during the crisis: Were experts more accurate than laypeople?

The main goal of this paper was to examine the accuracy and confidence of financial forecasts during the 2009/2010 crisis. The study was carried out in February 2009 in Poland. The participants represented two groups: financial analysts and laypeople (people without knowledge or skills in finance). All participants were asked to forecast future stock market performance and foreign exchange rates. Additionally, they marked their confidence on a 100-point scale. The results showed that the forecasts significantly differed from the real values. In forecasting both the stock market and the currency exchange market, the prediction error significantly differed from zero. Even if the participants were optimistic in making the directional stock market forecasts, they were pessimistic when making point index predictions, which suggests a judgmental paradox. The experts were slightly better than the non-experts in predicting the stock market. However, their accuracy was generally not better in the exchange market forecasts. The next step of the analysis focused on the confidence factor. The results of this part of the research showed that the laypeople were less confident than the experts in all the judgments.     

Evil Tidings: Are Reorganizations more Successful if Employees are Informed Early?

Organizations represent deliberately designed social contexts that are characterized by multi-level hierarchies. Interests and opportunity structures at each level usually do not overlap. We suggest that one of the reasons why intentional change efforts often fail to reach their objectives is because they are likely to trigger competing social mechanisms at different levels of the hierarchy. In order to illustrate this argument, we analyze the consequences of timely communication of planned organizational changes on perceived success of reorganizations. Two competing mechanisms are derived and tested with data from a telephone survey (carried out in 2003), among a sample of n = 412 Dutch business organizations that performed a reorganization. The commitment perspective predicts that early announcement of reorganization plans to middle management increases the likelihood of reorganization success, since it increases commitment and empowers middle management. The influence mechanism predicts that early information of non-managerial employees decreases the likelihood of reorganization success, because it enables employees to use the information to their own advantage, anticipate on the strategies of management, and organize opposition against the plans. We found that timely communication with middle management indeed increases chances for success, whereas timely communication with employees correlates with reorganization failure. However, not communicating with employees has an even stronger negative effect on reorganization success. No evidence could be found for our argument that the severity of the reorganization’s expected negative effects on the workforce moderates both mechanisms.     

Should countries be more like shopping malls? A proposal for Service Performance Guarantees

Through an examination of existing guarantee mechanisms, this article sets out and explains a proposal for the adoption of Service Performance Guarantees (SPGs) by developing countries working to attract foreign investment. The proposed approach is to offer investing firms the opportunity to purchase insurance against a wider range of risks than is currently possible, with highly visible payouts if service delivery standards fall short of those expected from the programme. The SPG contracts would be covered by a “domestic reserve” funded from premiums paid in by the firms and backed up by a further guarantee issued by a development partner. This approach restructures accountability to create a partnership of donors and recipient governments, accountable to their investor clients.     

Is the basic life-cycle theory of consumption becoming more relevant? Evidence from Portugal

Review of Economics of the Household - In this paper we report and discuss estimates of life-cycle consumption profiles obtained using microdata for Portuguese households. The estimated profiles...     

A reciprocal global education? Working towards a more humanizing pedagogy through critical literacy

Dehumanizing tendencies within the present neo‐liberal era provide the backdrop against which the authors have developed an 11‐year partnership in the Global South. The economic context encourages competition over community and, while portending to bring people closer together through technological advances, it only facilitates the flow of commerce and capital while stemming the movement of consumers and workers. The authors provide a nuanced historical perspective leading up to the neo‐liberal moment, which notices the emergence of patriarchy, Christianity, racism, and capitalism as particular forms of social control, oppression and dehumanization. Recognizing the constructed nature of these forms, the authors propose community, consciousness, and courage as liberating ways forward towards the creation of an alternative form – a more reciprocal global education. While documenting some of their 11‐year partnership, the authors reveal the contribution of the following theorists who have impacted their praxis: Paul Kivel (social service vs social change), Paul Farmer (charity vs development vs social justice approaches to ‘service’ work), and Paul Gorski (decolonizing intercultural education). The authors conclude by (re)examining their desire to resist neo‐liberal globalizing tendencies towards a more reciprocal global education which expands upon relationships built and focuses on a critical literacy approach though the use of culture circles.