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排序方式: 共有92条查询结果,搜索用时 15 毫秒
81.
Dietmar Walz 《Marketing Review St. Gallen》2010,27(1):37-39
Der wichtigste Stellhebel für die zielgerichtete, professionelle Gestaltung einer Vertriebsorganisation sind die Menschen
und die Strukturen, in denen sie arbeiten — und nicht die Tools. Die Heidelberger Druckmaschinen Vertrieb Deutschland GmbH
(HDD) hat 2002 damit begonnen, ihre Verkaufsorganisation komplett neu aufzustellen. Der Erfolg: Seit vier Jahren ein gleich
bleibender hoher Marktanteil als Marktführer in Deutschland und zwei Mal Sieger im unternehmensinternen World Sales Award. 相似文献
82.
Some simple economics of GM food 总被引:2,自引:0,他引:2
Public opposition to the genetic engineering of food crops (GM food) has not been based solely on concern about biological risks. Economic risks have been widely cited too: the fear that the world's food supply will be concentrated in the hands of a few large firms, the fear that such firms will engage or are already engaging in anti–competitive practices, and the fear of the transfer of ownership rights over genetic resources to the private sector. Are these fears justified? We argue that the GM food industry may be on course for further consolidation, and this could be anti–competitive. In fact, policymakers face a dilemma: a stringent regulatory approval process enhances food safety, but at the cost of increasing market concentration. We argue also that the integration of seed and agri–chemical manufacturers may bias the introduction of GM traits in undesirable directions. Some business practices (such as tie–in contracts between seeds and complementary products such as herbicides) may have an exclusionary motive that warrants scrutiny on anti–competitive grounds, while some other practices (such as the use of terminator genes) appear more benign. Finally, we argue against granting patents on genes or even on gene 'functions'. Doing so may delay the development of socially beneficial applications. 相似文献
83.
Dietmar Petersen 《Intereconomics》1982,17(4):167-172
Shrinking reserves of oil and natural gas at a time of increasing global energy requirements can mean a new future for coal, large reserves of which exist, half of them In the Western sphere of influence. The “renaissance of coal”, however, is not a natural law which operates on its own. The sooner the necessary decisions are taken on a world-wide basis, the more effectively will coal be able to play its new role in the international energy industry and the less will be the frictional losses along the road to a new energy future. 相似文献
84.
Dietmar Pfeifer 《保险科学杂志》2003,92(4):665-696
Mathematical claims modelling is a traditional art of actuarial practice. However, changing expectations concerning the complexity and efficiency of mathematical models have lead to numerous developments in the recent years, particularly in the area of multivariate models. This goes hand in hand with questions about what is ?possible“ and what is ?meaningful“. Due to sophisticated improvements of the classical models, the one-dimensional situation is well-tractable today whenever sufficient data material is available. A more difficult task is the modelling of situations where data are sparse or, alternatively, highly complex. Here sometimes theoretical arguments have to be used for justification, as in the area of large claims or extreme values. A more modern approach to multivariate situations is via copulas which allow for a separation of the problem of marginal distributions and the joint dependence structure. However, so far there is little experience with such tools in the insurance world, which makes further scientific research necessary. 相似文献
85.
Dietmar Ferger 《Statistica Neerlandica》2004,58(1):83-96
The Argmax-Continuous Mapping Theorem (Argmax-CMT) of K im and P ollard resp. van der Vaart and Wellner has been proved to be a very useful tool in statistics for deriving distributional convergence of M-estimators. However it only works as long as the limit process possesses an almost sure unique maximizing point. In this article we prove an extension of the Argmax-CMT where almost sure uniqueness is no longer needed. Moreover our Argmax-CMT is also valid in the function space D ( R ) equipped with L indvall's version of the Skorokhod-topology. As an example the result is applied to change-point estimators. 相似文献
86.
Dietmar Grichnik 《Journal of International Entrepreneurship》2008,6(1):22-47
This article presents a model of entrepreneurial risk-taking behavior in different cultural settings. Young entrepreneurs and entrepreneurship students in Germany and the United States were tested by means of an experimental design to evaluate the underlying model and to identify cultural differences in the decision to start a company. The central research question states: How does the cultural context influence the decision-making and risk-taking behavior of entrepreneurs? The overall result of the international sample indicates that the significant differences between entrepreneurs and nonentrepreneurs in risk-taking behavior are culturally driven. Thus, this study extends earlier US studies that distinguish between risk propensity and risk perception in respect of entrepreneurs’ risk behavior within an international, intercultural sample. Furthermore, the survey researches the influence of the personal traits overconfidence and worry. From a managerial perspective, “would-be entrepreneurs” can use the conducted experiment as an individual diagnostic instrument, making it possible to identify individual anomalies in risk and decision-making behavior and, consequently, contribute to a better understanding of suitable entrepreneurial behavior as well as to reveal discrepancies between self-assessment and actual behavior. 相似文献
87.
88.
Dietmar Ferger 《Metrika》2004,60(1):33-57
In this article a systematic study is given of the asymptotic behavior of two-sample tests based on U-Statistics with arbitrary antisymmetric kernels . Besides the investigation under the hypothesis and under fixed alternatives we determine the local power as a function of as well as its maximizing value opt. Moreover formulas for the asymptotic relative efficiency ARE(2,1) of the 2-test with respect to the 1-test are derived. It turns out that opt also yields the most efficient test in the sense that ARE(opt,)1 for all (admissible) kernels . 相似文献
89.
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