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Economic appraisals have often relied heavily on the factor use and factor price characteristics of process. In this article we treat impact of product characteristics in choice of technology. Product characteristics are specially important in the earlier stages of manufacturing, namely, commodity processing. The study elaborates also on circumstances which lead to the emergence of different and fluctuating relationships between product prices in different countries, respectively, developing and developed, and their implication for the choice of technology in these countries.  相似文献   
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As long as one lives within the confines of a single culture it is difficult to achieve cross-cultural awareness. Multiculturalism is often simply the tolerance of a dominant culture for minority cultures. Cross-cultural awareness is a state of mind in which one is alert to alternity , the existence of others possessing different and equally valid world views and ways of life. This can be acquired living within or alongside other cultures, when one's own and others' strangeness become readily apparent. Culture shock involves just such a realization. The challenge for the teacher of international relations is to convey the possibility of alternity to students in the classroom. After all, international relations is above all about the interaction between communities possessing separate identities and autonomous wills. The article discusses ways of cultivating cross-cultural awareness, comparing the difficulties of doing so in a society under siege—Israel—with the greater scope available in the cosmopolitan setting of an elite American university.  相似文献   
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This study focuses on the role of public capital stock in contributing to interstate differences in productive efficiency in manufacturing. Our motivation is to assess the role of public capital as a source of persistent regional variations in efficiency, and thus determine if public infrastructure policies might reasonably be expected to alter the competitive environment of a state's manufacturing sector. We use a stochastic frontier production function model, explicitly incorporating infrastructure capital, to examine the relative performance of the aggregate manufacturing sector across states and over time. We calculate an index of productive efficiency and estimate the determinants of statewide variations in it. These results show that variations in per capita infrastructure stocks significantly affect manufacturing efficiency. Considering the behavior of public capital as both a direct and an indirect input furthers our understanding of the role of infrastructure and its implications for regional economic development policies.  相似文献   
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Time spent on social media and making online comparisons with others may influence users’ mental health. This study examined links between parental control over the time their child spends on social media, preadolescents’ time spent browsing social media, preadolescents’ appearance comparisons on social media, and preadolescents’ appearance satisfaction, depressive symptoms, and life satisfaction. Preadolescent social media users (N?=?284, 49.1% female; aged 10–12) and one of their parents completed online surveys. Preadolescents, whose parents reported greater control over their child’s time on social media, reported better mental health. This relationship was mediated by preadolescents spending less time browsing and making fewer appearance comparisons on social media. Parental control over time spent on social media may be associated with benefits for mental health among preadolescents.  相似文献   
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What factors influence police officers’ willingness to risk themselves for others? Police officers are street-level bureaucrats, who are not only given the mandate to use deadly force in order to keep public order but also risk their most important resource – their lives – to protect society. We suggest three factors that prompt police officers to risk their lives: individual characteristics (a desire to gain respect and recognition, and testing one's courage, ideology, and personality), organizational conditions (expectations of peers and supervisors, promotion opportunities), and environmental context (a hostile working environment and the importance of public opinion to them). Using an abductive approach combined with a triangulated qualitative method, our findings indicate that personal characteristics are indeed important, but so too are organizational conditions and environmental context. The practical insight, therefore, is that decision makers ‘can’, in various formal and informal ways, influence street-level bureaucrats’ behaviour. Here, the interactions among managers, workers, and clients are a crucial element.  相似文献   
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