H-likelihood: problems and solutions

In recent issues of this journal it has been asserted in two papers that the use of h-likelihood is wrong, in the sense of giving unsatisfactory estimates of some parameters for binary data (Kuk and Cheng, 1999; Waddington and Thompson, 2004) or theoretically unsound (Kuk and Cheng, 1999). We wish to refute both these assertions.     

Top management departures in cross-border acquisitions: Governance issues in an international context

This study examined top management team departures in U.S. manufacturing firms acquired by a foreign multinational during the six-year period following acquisition. Results indicated that greater cultural distance between the United States and the home country of the foreign multinational, higher levels of international integration in the target industry, and poor preacquisition performance in the U.S. target company were related to greater postacquisition top management departures. These effects were moderated significantly by the foreign acquirer’s international business and U.S. acquisition experience and showed different patterns over the short-term, intermediate-term, and long-term. Implications for future research on top management teams involved in cross-border acquisitions are discussed.     

高校邓小平理论教育探析

近年来,高校积极推进邓小平理论"进教材、进课堂、进学生头脑"的工作,取得了一定的成绩,但效果并不明显。究其原因,就高校内部来说,主要是某些领导对进行邓小平理论教育的重要性认识不够,理论教学缺乏吸引力,学生积极性不高。因此,必须充分认识用邓小平理论武装大学生头脑的意义,建立以教师为主导、学生为主体的教学模式,激发学生的学习热情,使邓小平理论真正融进学生头脑。     

买方市场条件下的企业营销对策

买方市场的形成是我国经济发展过程的一个划时代变化,它将对我国企业经营和营销带来严峻挑战。本文分析了我国买方市场的形成、特征及其对企业营销的影响,并就买方市场条件下企业营销对策进行了重点分析。     

Exponential random graph models of preschool affiliative networks

Exponential random graph models were used to assess the relevance of reciprocity, popularity, transitivity controlling for effects based upon ego and alter sex, and sex homophily, on the formation of affiliative ties in 19 Portuguese preschool peer groups. The number of times two children were recorded as nearest neighbors in focal samples was used as an indicator of the relationship's strength. Independent parameter estimates of the different models (one for each group) were summarized, separately for the three age groups (“3-year-olds”, “4-year-olds” and “5-year-olds”) using a multi-level approach to meta-analysis. Results showed that affiliative ties between children were sex segregated, highly reciprocal, more likely to be directed to a restricted number of children and with a tendency to create transitive triads. The structural processes underlying the formation of affiliative ties were quite stable between classrooms.     

Extrapolative simulation of neighborhood networks based on population spatial distribution: Do they predict crime?

Objectives

Previous criminological scholarship has posited that network ties among neighborhood residents may impact crime rates, but has done little to consider the specific ways in which network structure may enhance or inhibit criminal activity. A lack of data on social ties has arguably led to this state of affairs. We propose to avoid this limitation by demonstrating a novel approach of extrapolatively simulating network ties and constructing structural network measures to assess their effect on neighborhood crime rates.

Methods

We first spatially locate the households of a city into their constituent blocks. Then, we employ spatial interaction functions based on prior empirical work and simulate a network of social ties among these residents. From this simulated network, we compute network statistics that more appropriately capture the notions of cohesion and information diffusion that underlie theories of networks and crime.

Results

We show that these network statistics are robust predictors of the levels of crime in five separate cities (above standard controls) at the very micro geographic level of blocks and block groups.

Conclusions

We conclude by considering extensions of the approach that account for homophily in the formation of network ties.     

Perceptions About Residence Hall Wingmates and Alcohol-Related Secondhand Effects Among College Freshmen

Objective: The authors examined the secondhand effects among college freshmen of others' alcohol use and related student characteristics, and perceptions about residence hallmates.

Participants: The authors surveyed 509 incoming freshmen residing in predominantly freshman residence halls.

Methods: The authors administered a Web-based survey 2 months into the 2006 fall academic semester.

Results: Most (80%) students experienced at least 1 secondhand effect. Participants' perceptions of wingmates' acceptance and expectation of alcohol use and participants' perceived inability to protect themselves against alcohol problems were related to experiencing secondhand effects, as were being a female and a drinker.

Conclusions: Incoming college freshmen frequently experienced secondhand effects of alcohol use. Involving residence halls in norms-based interventions aimed at reducing secondhand effects warrants evaluation. Further research is also needed to examine skill building among college students to avoid and intervene into others' drinking and to examine resident advisor roles as both engenderers of trust and cooperation as well as enforcers of alcohol rules.     

Daughter's Perceptions of Being Mothered by an Incest Survivor: A Phenomenological Study

ABSTRACT

This article presents the results of a qualitative analysis of the experience of being the daughter of an incest survivor using a phenomenological approach to the narratives of six women. The majority of the daughters identified a number of effects of their mother's abuse that they perceived as harmful as a child and that lasted into adulthood. Most perceived their mothers as failing to grow up. The daughters responded with a lack of affection toward their mothers, complications in differentiation and integration of a negative self-view. Even in adulthood, the daughters reported a number of characteristics that are normally associated with being a victim of sexual abuse, despite the fact that only two of the six had been so abused. The mother's ultimate disclosure of her incest history helped the daughter to offset these difficulties. The clinical implications of these findings are outlined.     

Changing compatibility of cohabitation and childbearing between young British women born in 1958 and 1970

We investigate the effect of parenthood on whether non-marital unions led to marriage or parting for two cohorts of British women when they were aged between 16 and 29. We compare the effect of conceptions leading to births and the presence and characteristics of children on the odds that a cohabitation was dissolved, or that it was converted to marriage, for women born in 1958 and 1970. A multilevel, multiprocess, competing-risks model allows for multiple cohabitations per woman and endogeneity of fertility status. We find that cohabiting couples’ response to impending parenthood and the presence of children changed over time. In particular, the proportion of cohabiting couples who married before a birth decreased and, in the 1970 cohort only, the risk of dissolution declined during pregnancy. There is also evidence that the presence of a child cemented a cohabiting union for women from the 1970, but not the earlier, cohort.     

EPA's 2006 Human-Subjects Rule for Pesticide Experiments

Arguing that the 2006 Environmental Protection Agency (EPA) human-subjects rule allows use of unethical third-party research (on pregnant women and children) in setting pesticide regulations, this article first (a) provides a brief history of U.S. pesticide regulation, particularly regarding childhood safety. Next it (b) outlines ethical and scientific loopholes in the 2006 EPA rule; (c) shows how the Human Subjects Review Board, mandated by the 2006 rule, has been implemented in flawed ways; and (d) illustrates that one source of problems with the rule may be influence by those with conflicts of interest.