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51.
Frederick F. Stephan 《The American statistician》2013,67(1):8-9
Separate Poisson distributions were evaluated via several hypotheses tests for each of the 16 teams in the National Hockey League using 1973–74 goals for and goals against both home and away. After examining independence of goals for and goals against, they in turn were used to explain order of finish for the 16 teams. The results were quite surprising. 相似文献
52.
Xavier Fonseca Stephan Lukosch Frances Brazier 《Innovation: The European Journal of Social Science Research》2019,32(2):231-253
This paper provides a general overview on different perspectives and studies on social cohesion, offers a definition of social cohesion that is deeply rooted in current literature, and provides a framework that can be used to characterize social cohesion and help support resilient cities. The framework highlights the factors that play a substantial role in enabling social cohesion, and shows from which perspectives it can be fostered. 相似文献
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Stephan Nüesch 《Journal of Management and Governance》2016,20(3):525-551
Whereas the agency theory predicts that dual-class shares decrease firm performance, the stewardship theory predicts that dual-class shares increase firm performance. The cumulative findings on the performance consequences of dual-class shares have been weak and/or inconclusive. Because endogeneity is a constant challenge in empirical corporate governance studies, this study uses a unique law change in Switzerland as a source of exogenous variation in the fraction of firms with dual-class shares. Controlling for firm fixed effects and time-varying confounders, we find that dual-class shares neither harm nor benefit firm performance on average. However, dual-class shares increase firm performance if the firm requires external finance and dual-class shares decrease firm performance if the firm does not require external finance. External financing needs mitigate the agency costs between controlling and minority shareholders and create a context in which dual-class shares facilitate firm-specific investments instead of private perquisites. The study’s results have both managerial and policy implications. 相似文献
56.
Stephan Morgenthaler 《Statistical Methods and Applications》2007,15(3):271-293
We argue that robust statistics has multiple goals, which are not always aligned. Robust thinking grew out of data analysis
and the realisation that empirical evidence is at times supported merely by one or a few observations. The paper examines
the outgrowth from this criticism of the statistical method over the last few decades.
This research was supported in part by the Swiss National Science Foundation.
An erratum to this article can be found at 相似文献
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Martin J. Wolfsegger Alexander Bauer Detlew Labes Helmut Schütz Richardus Vonk Benjamin Lang Stephan Lehr Thomas F. Jaki Werner Engl Michael D. Hale 《Pharmaceutical statistics》2021,20(2):272-281
For the clinical development of a new drug, the determination of dose-proportionality is an essential part of the pharmacokinetic evaluations, which may provide early indications of non-linear pharmacokinetics and may help to identify sub-populations with divergent clearances. Prior to making any conclusions regarding dose-proportionality, the goodness-of-fit of the model must be assessed to evaluate the model performance. We propose the use of simulation-based visual predictive checks to improve the validity of dose-proportionality conclusions for complex designs. We provide an illustrative example and include a table to facilitate review by regulatory authorities. 相似文献
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Increasing evidence from the empirical economic and psychological literature suggests that positive and negative well-being
are more than opposite ends of the same phenomenon. Two separate measures of the dependent variable may therefore be needed
when analyzing the determinants of subjective well-being. We investigate asymmetries in the effect of income on subjective
well-being with a single-item measure of general life satisfaction. Using data from the German Socio-Economic Panel 1984–2004,
and a flexible multiple-index ordered probit panel data model with varying thresholds, we find that income has only a minor
effect on high satisfaction but significantly reduces dissatisfaction. 相似文献