Ethnicity-of-Interviewer Effects Among Mexican-Americans and Anglos

A general interpersonal deference explanation for ethnicity-of-interviewereffects is tested with a random survey of Anglos and Mexican-Americansusing Anglo and Hispanic interviewers and questions relatedto Mexican-American culture. The theory was most clearly supportedamong Anglo respondents. The mixed support found among Mexican-Americanssuggests that deference is strongest when questions deal withthe culture represented by the interviewer, not the respondent.     

MARKET VENTURES, MORAL LOGICS, AND AMBIGUITY: Crafting a New Organizational Form in Post-Socialist China

How do institutional entrepreneurs craft new organizational forms under unstable conditions, especially when all of the relevant organizational models have serious liabilities in terms of legitimacy? Previous literature argues that emergent organizational models must adopt existing organizational elements in order to solve three problems: (1) gaining access to resources, (2) exploiting previous competencies, and (3) demonstrating legitimacy to salient audiences. Yet, these three distinct needs often require very different organizational elements associated with diverse, contradictory moral logics. This article, which examines the case of for‐profit ventures started by Chinese state organizations in the 1990s, reveals one strategy that entrepreneurs can use to solve this problem—to deliberately increase ambiguity about the organization's central characteristics and its underlying moral logic. This strategy makes it possible for new organizations to solve the problems of resources, competency, and legitimacy by simultaneously adopting (and adapting) contradictory organizational elements.     

Maximum-likelihood estimates and likelihood-ratio criteria for multivariate elliptically contoured distributions

For a class of multivariate elliptically contoured distributions the maximum-likelihood estimators of the mean vector and covariance matrix are found under certain conditions. Likelihood-ratio criteria are obtained for a class of null hypotheses. These have the same form as in the normal case.     

A Generalization of Geometric Brownian Motion with Applications

Although geometric Brownian motion has a great variety of applications, it can not cover all the random phenomena. The purpose of this article is to propose a model that generalizes geometric Brownian motion. We present some interesting applications of this model in financial engineering and statistical inferences for the unknown parameters.     

受众心理分析视角的网络谣言治理

网络受众是网络谣言传播的主体,其不同的心理状态推动了网络谣言的生成与传播。网络受众的心理状态主要表现为泄愤心理、从众心理、窥私心理、投射心理以及选择心理等多种复杂的心理状态。这些心理状态的成因在于社会主义民主法制不健全、政府公信力低以及受众理性精神不足。唯有通过加强民主法制建设,健全网络法治监管,建立信息发布机制,建立辟谣中介组织以及加强网络媒介素养教育等途径,才能培育成熟的网络受众心理,从而提升网络谣言治理的成效。     

中外合作办学学费标准研究

我国现有法律法规对中外合作办学的学费标准缺乏明确规定,存在学费水平过高、学费依据不透明、学校之间差异巨大、学费与教育效益联系不紧密等问题。本研究基于我国高等学校基本办学条件,运用数理统计方法,构建生均培养成本模型,从四个方面综合计算中外合作办学学费标准:明确中外合作办学定位、明晰培养成本项目、构建学费定价机制、结合办学效益等,以期最终制定出科学合理的中外合作办学学费标准。     

Calibrated predictions for multivariate competing risks models

Prediction models for time-to-event data play a prominent role in assessing the individual risk of a disease, such as cancer. Accurate disease prediction models provide an efficient tool for identifying individuals at high risk, and provide the groundwork for estimating the population burden and cost of disease and for developing patient care guidelines. We focus on risk prediction of a disease in which family history is an important risk factor that reflects inherited genetic susceptibility, shared environment, and common behavior patterns. In this work family history is accommodated using frailty models, with the main novel feature being allowing for competing risks, such as other diseases or mortality. We show through a simulation study that naively treating competing risks as independent right censoring events results in non-calibrated predictions, with the expected number of events overestimated. Discrimination performance is not affected by ignoring competing risks. Our proposed prediction methodologies correctly account for competing events, are very well calibrated, and easy to implement.     

Reconsidering the exploration of power distance: an active case study approach

In this paper, we present what we call an “active case study” and we theorize specifically on the relevance hereof for an exploration of power distance (as conceptualized by Hofstede (Culture's Consequences: International Differences in Work-Related Values, Sage, Beverley Hills, CA, 1980)). As Hofstede conceives it, the notion of “power distance” enables an understanding of the predominant ideas about inequality prevalent in a (national) culture, which in turn infuse work relationships. An active case study approach—as we elucidate in the paper—implies an acknowledgement on the part of those organizing the research of the manner in which their intervention might affect the way “respondents” experience their work relationships. We suggest that our proposed active case study approach offers novel possibilities for exploring power distance and should be added to the repertoire of approaches used to examine this in organizational life. We develop our argument in this regard by offering a detailed account of the application of this approach to a Taiwanese organization (the Kaohsiung Harbor Bureau in Taiwan).