Partnerwahl als konsensuelle Entscheidung

This study continues our analyses of contacting behavior in online dating (KZfSS 2/2009). As the beginning and continuation of a relationship is based on consensual decisions of both partners to interact, we concentrate on the question if and how potential partners indeed reply to contact offers. Data from online dating platforms therefore offer a unique opportunity for sociologists to study how partnerships are initiated and how they develop over time. This contribution provides four important empirical results: Firstly, it demonstrates that only 20% of all first contact offers are answered. This is a surprisingly small proportion. Secondly, it supports the hypothesis of homophily. According to this hypothesis, people with similar education, age and physical attractiveness should prefer each other and thus are more likely to form couples. Third, it shows that women still have severe problems to reply to contact offers from lower educated men, while men are already less reluctant to reply to higher educated women. Thus, the rarity of couples where women are higher educated than their partners are to a large proportion the consequence of women’s preferences rather than men’s preferences. Finally, our study does not find any support for the trade-off hypothesis, indicating that women do not exchange their physical attractiveness for men’s educational resources, and vice versa.     

多层Logit结构多模式变量需求网络平衡模型

探讨了多类别多模式变量需求网络平衡模型,模式选择模型采用多层ｌｏｇｉｔ结构,终点选择特定为一个多比例熵出行分配模型,公交车辆的出行时间与同一路网的其他车辆另行时间密切相关,采用变分不等式方法将模型的全部组元集合于一个模型中,并运用基于ＢｌｏｃｋＧａｕｓｓ－Ｓｅｉｄｅｌ分解算法有效地解决了固定需求和多维出行分布网络平衡模型的计算,论文给出了根据智利圣地亚哥市数据由ＥＭＭＥ／２软件包所得到的数值结果。     

Aircraft seating comfort: the influence of seat pitch on passengers' well-being

One of the most important factors influencing aircraft seating comfort in economy class, is legroom. In an airline interior mock up, with the ability to adjust the seat pitch in a range of 28 inches to 43 inches, a study to investigate the influence of seat pitch on passengers' well-being was conducted. In a pre-study, aspects of subjective postural sensations and spatial perception were identified, and a questionnaire was developed. In the main study, 30 subjects rated at different seat pitch settings the spatial perception and the ability of adopting and changing sitting postures. As a result a functional relationship between overall well-being, the subjects' anthropometry and seat pitch was developed. Furthermore it was identified, that there is a maximum overall well-being at a seat pitch of 34 inches to 40 inches, depending on the passengers' anthropometry. A further enlargement of seat pitch, led to a reduction of well-being.     

The village in the mind: Applying Q-methodology to re-constructing constructions of rurality

In recent years rural studies have focused on the analysis of different notions of ‘the rural’ and how they are constructed in expert discourses as well as in everyday life. Dealing empirically with such patterns of meaning, poses special challenges to social science. In this article I want to explore Q-methodology that approaches subjectivity in a particular way. Instead of beginning with the individual – as it is done in case study approaches – or with socio-demographic categories – as surveys usually do – Q-methodology attempts to put the focus of inquiry on the content of subjectivity itself, i.e. the integral views and their internal frame of reference. Q-methodology can be conceived as a hybrid of qualitative and quantitative methodology since it combines mathematical procedures like factor analysis with a genuine constructivist and interpretative approach to ‘reality’. An example of a study in which Q-methodology was applied is presented. The aim of this analysis was to explore the different views of village development and community life that existed in a municipality of the exurban hinterland of Hamburg. As a result of this study three distinct perceptions of rurality are identified: an idyllic, a reform-oriented and an anti-conservationist view. Based on a structured comparison of these three views it is shown how Q-methodology can contribute new perspectives and insights to the debate about social representations of rurality.     

Measuring social trust and trusting the measure

Decades of rigorous quantitative scholarship have generated a wealth of knowledge regarding the causes and consequences of crossnational variations in social trust. However, while some social science disciplines have made significant contributions to this conversation, others have largely failed to do so. The field of international relations, for example, has lagged behind in producing aggregate-level scholarship on social trust. This is surprising given that (1) trust influences public opinion and thereby the incentive structure for political leaders and (2) many peacebuilding efforts directly target the levels of trust in post-conflict settings. Country-level trust scholarship in international relations and the social sciences more generally is hampered by data scarcity. The main purpose of this article is to present a new publicly available data set on aggregate levels of social trust. Relying on a set of 19 widely accepted correlates, we construct a new cross-sectional measure of the concept that covers all countries from 1946 to 2010. We then perform a series of empirical tests establishing the validity of our measure. Finally, we offer a number of bivariate analyses to demonstrate the broad utility of our new variable for scholars in the social sciences.     

The Risk of a Mortality Catastrophe

We develop a continuous-time model for analyzing and valuing catastrophe mortality contingent claims based on stochastic modeling of the force of mortality. We derive parameter estimates from a 105-year time series of U.S. population mortality data using a simulated maximum likelihood approach based on a particle filter. Relying on the resulting parameters, we calculate loss profiles for a representative catastrophe mortality transaction and compare them to the “official” loss profiles that are provided by the issuers to investors and rating agencies. We find that although the loss profiles are subject to great uncertainties, the official figures fall significantly below the corresponding risk statistics based on our model. In particular, we find that the annualized incidence probability of a mortality catastrophe, defined as a 15% increase in aggregated mortality probabilities, is about 1.4%—compared to about 0.1% according to the official loss profiles.     

Foundation ownership and shareholder value: an event study

Review of Managerial Science - Some of the largest listed firms in Western and Northern Europe are partly owned by foundations. So far, little research exists about the shareholder value effects of...     

Index of Authors Volume 59, 2002

Authors Index

Index of Authors Volume 59, 2002     

The Governance of International Nongovernmental Organizations: How Funding and Volunteer Involvement Affect Board Nomination Modes and Stakeholder Representation in International Nongovernmental Organizations

The governance of civil society organizations (CSOs) is a crucial determinant of organizational legitimacy, accountability, and performance. International nongovernmental organizations (INGOs) are a subtype of CSOs and have received a lot of attention as actors in global governance. Research suggests that INGOs can follow a membership model, where the board is elected by the membership, or a board-managed model, where the board is appointed to represent major stakeholders. Following resource dependency theory, we argue that the choice between these two models depends on the INGOs different sources of funding and the degree of volunteer involvement: As donors and volunteers provide important resources, they are in turn granted the right to nominate board members or to sit on the board. In our quantitative study we show that individual members, regional member organizations, and governmental donors hold a stronger position in the governance of INGOs than philanthropists, foundations and volunteers. Our results inform research on CSO governance by highlighting the relevance of board nomination modes and by showing how CSOs can incorporate stakeholders into their governance mechanisms.