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61.
Antoine Echelard Jacques Lévy Véhel Anne Philippe 《Scandinavian Journal of Statistics》2015,42(2):485-503
Self‐regulating processes are stochastic processes whose local regularity, as measured by the pointwise Hölder exponent, is a function of amplitude. They seem to provide relevant models for various signals arising for example in geophysics or biomedicine. We propose in this work an estimator of the self‐regulating function (that is, the function relating amplitude and Hölder regularity) of the self‐regulating midpoint displacement process and study some of its properties. We prove that it is almost surely convergent and obtain a central limit theorem. Numerical simulations show that the estimator behaves well in practice. 相似文献
62.
Influence functions are commonly used as diagnostic tools in order to investigate sensitivity aspects in principal component analysis. This paper suggests a practical alternative for the eigenvalues by introducing a sensitivity measure derived from the classical Lorenz curve and associated Gini index. The results are illustrated by analysing an example. 相似文献
63.
Jacques Tibau 《European Management Journal》2000,18(6)
The author draws on his experience teaching business concepts to executive students from former centrally-planned economies of the Confederation of Independent States, particularly Tashkent. Several lessons can be learned. Most important is that the students' perceptions of Western business knowledge is very different from those in the West. To bridge these different perceptions, the author suggests starting from a common knowledge base, using only concrete and specific work situations, making tacit knowledge explicit through imagination, analogies and metaphors, and giving priority to the process of introducing new business practices. 相似文献
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65.
Jean‐Jacques Laffont David Martimort 《Econometrica : journal of the Econometric Society》2000,68(2):309-342
In a public good environment with positively correlated types, we characterize optimal mechanisms when agents have private information and can enter collusive agreements. First, we prove a weak‐collusion‐proof principle according to which there is no restriction for the principal in offering weak‐collusion‐proof mechanisms. Second, with this principle, we characterize the set of allocations that satisfy individual and coalitional incentive constraints. The optimal weakly collusion‐proof mechanism calls for distortions away from first‐best efficiency obtained without collusion. Allowing collusion restores continuity between the correlated and the uncorrelated environments. When the correlation becomes almost perfect, first‐best efficiency is approached. Finally, the optimal collusion‐proof mechanism is strongly ratifiable. 相似文献
66.
Abstract. What is needed to diminish segregation between men and women in the labour market is a program of affirmative action for the Netherlands as a whole. Specific measures aimed at the removal of barriers between occupations cannot be successful unless they are imbedded in such an overall program. A necessary part of such a plan are facilities that enable women and men to combine unpaid parental tasks and paid labour. In contrast with public day care centres, company day care centres do not fit into such a plan, because they even enlarge existing segregation. Company day care centres and other measures to facilitate parental care and paid labour are more often found in industries with a larger share of female workers. This relationship is found for both the Netherlands and the United States. It is concluded that it is in the interest of employers as well as women's emancipation to increase the number of public day care centres instead of the number of company day care centres. 相似文献
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68.
Jacques J. D. M. van Lankveld Peter J. de Jong Marcus J. M. J. Henckens Philip den Hollander Anja J. H. C. van den Hout Peter de Vries 《Journal of sex research》2018,55(6):802-813
Current models of sexual functioning imply an important role for both automatic and controlled appraisals. Accordingly, it can be hypothesized that erectile dysfunction may be due to the automatic activation of negative appraisals at the prospect of sexual intercourse. However, previous research showed that men with sexual dysfunction exhibited relatively strong automatic sex-positive instead of sex-negative associations. This study tested the robustness of this unexpected finding and, additionally, examined the hypothesis that perhaps more specific sex-failure versus sex-success associations are relevant in explaining sexual dysfunction and distress. Male urological patients (N = 70), varying in level of sexual functioning and distress, performed two Single-Target Implicit Association Tests (ST-IATs) to assess automatic associations of visual erotic stimuli with attributes representing affective valence (“liking”; positive versus negative) and sexual success versus sexual failure. Consistent with the earlier findings, the lower the scores on sexual functioning, the stronger the automatic sex-positive associations. This association was independent of explicit associations and most prominent in the younger age group. Automatic sex-positive and sex-failure associations showed independent relationships with sexual distress. The relationship between sexual distress and sex-failure associations is consistent with the view that automatic associations with failure may contribute to sexual distress. 相似文献
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70.
This paper develops a contingent claims analysis, a simple decision model for determining the optimal price in a cash tender offer. The implied behavior of the optimal tender offer premium over the market price of the target common stock is also investigated. Those readers interested in applying the model may obtain an interactive computer program written in FORTRAN and implementable on a personal computer from the authors on request. 相似文献