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21.
An easy method to construct efficient blocked mixture experiments in the presence of fixed and/or random blocks is presented. The method can be used when qualitative variables are involved in a mixture experiment as well. The resulting designs are
-optimal in the class of minimum support designs. It is illustrated that the minimum support designs are more efficient than orthogonally blocked mixture experiments presented in the literature and only slightly less efficient than -optimal designs. 相似文献
22.
Domaszewicz A 《Benefits quarterly》2007,23(2):18-24
Consumerism and care management continue to make inroads as cost-containment strategies for employers, as well as for employees who have endured the steady rise in benefit cost-shifting. The latest statistics and trends point the way to a new era of personal responsibility in health benefits. The author describes how this trend has grown, and where it is leading. 相似文献
23.
Alexander Fink 《Constitutional Political Economy》2011,22(2):173-190
Social contractarians commonly take social contracts to be solely hypothetical and refrain from elaborating on the factors
that influence the feasibility of the formation of social contracts. In contrast, this paper aims at providing a discussion
of the conditions affecting the feasibility of social contracts. I argue that the more aligned the preferences of group members
for public goods are, the more the individuals share similar social norms, and the smaller the group is the more feasible
a genuine social contract becomes. I provide evidence in support of my contention from the medieval Hanseatic League. At the
Hanseatic Kontor in Novgorod, one of the four major trading posts of the Hanseatic League in cities outside of Germany, German merchants agreed
to live under the rule of a constitution that gave rise to a political authority for the Kontor society. 相似文献
24.
We explore whether competitive outcomes arise in an experimental implementation of a market game, introduced by Shubik (1973) [21]. Market games obtain Pareto inferior (strict) Nash equilibria, in which some or possibly all markets are closed. We find that subjects do not coordinate on autarkic Nash equilibria, but favor more efficient Nash equilibria in which all markets are open. As the number of subjects participating in the market game increases, the Nash equilibrium they achieve approximates the associated competitive equilibrium of the underlying economy. Motivated by these findings, we provide a theoretical argument for why evolutionary forces can lead to competitive outcomes in market games. 相似文献
25.
Alexander E. Ellinger Ay?e Banu Elmada? Ba? Andrea D. Ellinger Yu-Lin Wang Daniel G. Bachrach 《Journal of Business Research》2011,64(6):572-578
This paper describes the development and validation of a measure of organizational investments in social capital (OISC). The scale development process is carried out over three stages (item generation, scale purification, scale validation), with two separate data collection phases involving a total of 735 working adults from multiple and diverse service-related workplace settings. As such, the data provide evidence for the face, content, discriminant, convergent and nomological validity, dimensionality and reliability of the OISC measure. The OISC measure is a concise, unidimensional scale that has the potential for significant usage in the development and testing of theory, as well as practical application in retail and other service provision contexts. 相似文献
26.
Are celebrity endorsements worthwhile investments in advertising? To answer this question, we analyze a unique sample of 101 announcements made between 1996 and 2008 by firms listed in the USA. Internet is the main medium of communication for these announcements. We employ event study methodology and document statistically insignificant abnormal returns around the announcement dates. This finding is consistent with the notion that the incremental benefits from celebrity endorsements closely match the incremental costs due to such contracts. Further, we investigate if the announcement date return depends on a number of characteristics that are often used in the endorsement literature. As a result, we find that endorsements of technology industry products coincide with significant positive abnormal returns around the announcement dates. Finally, we find weak support for the match-up hypothesis between celebrities and endorsed products. 相似文献
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Within the professional kitchen bullying is reported as widespread, aggressive and related to a significant retention problem. This research explores negative behaviour in professional kitchens and its impact on organisational commitment. A mixed methods approach is used employing a survey among chefs followed by semi-structured interviews. An exploratory factor analysis examines the underlying constructs of bullying and job satisfaction and data are analysed through Partial Least Squares. Our research highlights that bullying behaviour is experienced most by younger, more junior chefs. However verbal bullying, the form most strongly reported, has no effect on either satisfaction or commitment. Emergent themes of communication and inclusion illustrate bullying behaviour to be a cohesive aspect of kitchen culture. Our findings suggest behavioural impacts, rather than bullying characteristics, must be considered within their context in order to establish whether or not they are actually damaging to an industry. 相似文献