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971.
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973.
The past three decades have been a time of increasing informality in the American workplace. It's easy to characterize this growing comfort with the casual as a positive step for workplace culture, an outgrowth of the American democratic belief in workers' equality. Informal environments are said to be more trusting and open, and workers who are free to express their personalities are more comfortable and thus more creative--right? According to etiquette guru Judith Martin--known far and wide as Miss Manners--informality in the workplace may do more harm than good. Without some formality in social intercourse, Miss Manners argues, human interactions end up being governed by laws, which are too heavy-handed to serve as a guide through the nuances of personal--or professional--behavior. Since our earliest beginnings, we have developed formal rules to accompany shared human experiences, such as eating and mourning. Yet, says Miss Manners, something in us rebels against form and etiquette, and every so often, an anti-manners movement takes hold, and people come to believe that following etiquette is unnatural. One recent such movement has led to the belief that a distinction between our work life and our professional life is unnecessary. If we hope to reassure our customers that we are indeed professional, however, we need to be aware of the boundaries of professional behavior. On the whole, Miss Manners argues, informality in the workplace leads to a host of problems, from making employees feel pressured to "socialize" with coworkers during weekends and evenings to sexual harassment. Despite the shortcomings of informality in the American workplace, though, Miss Manners believes that we have the best code of manners the world has ever seen-in theory. In practice, American etiquette is undoubtedly still a work in progress.  相似文献   
974.
Eling  Martin 《保险科学杂志》2004,93(3):325-347
Zeitschrift für die gesamte Versicherungswissenschaft - Seit Beginn des Jahres 2004 besteht in Deutschland durch das Investmentmodernisierungsgesetz die Möglichkeit zur Gründung und...  相似文献   
975.
This paper analyzes how country size affects exchange rate policy and volatility. A hump shaped relation between exchange rate variability and the size of countries is generated in the theoretical model: exchange rate variability increases with country size for small countries but then decreases for large countries. The paper finds that this theoretical prediction holds well for bilateral exchange rates of the OECD countries in the period between 1980 and 1995 as well as for a subsample of European exchange rates with respect to the dollar. The results suggest that the dollar/euro volability may be lower than the present dollar/DM volatility.J. Japan. Int. Econ., Dec. 1998,12(4), pp. 455–482. CERAS-ENPC, Graduate Institute of International Studies, and CEPR, 28 rue des Saints Pères, Paris 75007, France.Copyright 1998 Academic Press.Journal of Economic LiteratureClassification Numbers F33, F41, F42.  相似文献   
976.
Weighted norm inequalities and hedging in incomplete markets   总被引:1,自引:0,他引:1  
Let be an -valued special semimartingale on a probability space with canonical decomposition . Denote by the space of all random variables , where is a predictable -integrable process such that the stochastic integral is in the space of semimartingales. We investigate under which conditions on the semimartingale the space is closed in , a question which arises naturally in the applications to financial mathematics. Our main results give necessary and/or sufficient conditions for the closedness of in . Most of these conditions deal with BMO-martingales and reverse H?lder inequalities which are equivalent to weighted norm inequalities. By means of these last inequalities, we also extend previous results on the F?llmer-Schweizer decomposition.  相似文献   
977.
Buying recent winners and shorting recent losers guaranteestime-varying factor exposures in accordance with the performanceof common risk factors during the ranking period. Adjusted forthis dynamic risk exposure, momentum profits are remarkablystable across subperiods of the entire post-1926 era. Factormodels can explain 95% of winner or loser return variability,but cannot explain their mean return components are more profitablethan those based on total returns. Neither industry effectsnor cross-sectional differences in expected returns are theprimary cause of the momentum phenomenon.  相似文献   
978.
Considerable work has been reported on the tradeoffs associated with direct broadcast satellite (DBS) systems. These studies have considered total investment costs (space segment plus ground segment), but have not dealt with a number of other business-related parameters which affect system design. This article addresses some of these issues from the viewpoint of a commercial entity in the USA. It considers intial financing, short-term v long-term competitive advantages, system features v cost, effects of partially shifting the investment burden to the consumer, technology improvements, satellite constraints and economies of scale, flexibility, commercial alliances, and regulatory constraints. Examples are given to illustrate the tradeoffs involved and the effects of some of the factors.  相似文献   
979.
In "From Value Chain to Value Constellation: Designing Interactive Strategy" (July-August 1993), Richard Normann and Rafael Ramírez argue that successful companies increasingly do not just add value, they reinvent it. The key strategic task is to reconfigure roles and relationships among a constellation of actors--suppliers, business partners, customers--in order to mobilize the creation of value in new forms and by new players. What is so different about this new logic of value? It breaks down the distinction between products and services and combines them into activity-based "offerings" from which customers can create value for themselves. But as potential offerings become more complex, so do the relationships necessary to create them. As a result, a company's strategic task becomes the reconfiguration and integration of its compentencies and customers. Normann and Ramírez provide three illustrations of these new rules of strategy. IKEA has blossomed into the world's largest retailer of home furnishings by redefining the relationships and organizational pratices of the furniture business. Danish pharmacies and their national organization have used the opportunity of health care reform to reconfigure their relationships with customers, doctors, hospitals, drug manufacturers, and with Danish and international health organizations.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   
980.
Recent United States Congress legislation (the WARN Act of 1988) mandates that organizations must provide at least 60 days notice before a layoff of 50 or more employees can be instituted. As a consequence, individuals who are notified of their layoff often remain in their jobs for a significant period of time-and managers hope that these people will be good organizational citizens during thisremaining time. This article identifies different psychological factors that could explain why individuals would remain good citizens, even after notification of their impending termination. In a survey of 147 skilled employees who received notification of their layoffs, we found that the perceived fairness of the layoff process was the primary factor influencing their citizenship behavior. Additional analyses suggested that the perceived adequacy of the explanation of the layoffs, and whether the layoff victims were treated with respect and dignity, were the primary factors influencing the perceived fairness of the layoff process. The theoretical implications of these results are discussed.  相似文献   
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