Netzwerktheorie(n)

Gruppe. Interaktion. Organisation. Zeitschrift für Angewandte Organisationspsychologie (GIO) -     

Population size, perceived threat, and exclusion: a multiple-indicators analysis of attitudes toward foreigners in Germany

The major objective of the present research is to examine the long-standing theoretical proposition that hostility and discriminatory attitudes toward out-groups are likely to rise with relative size of the out-group population. Using data from The German General Social Survey (ALLBUS, 1996) we provide, for the first time, an examination of the impact of both actual and perceived size of the foreign population on discriminatory attitudes toward foreigners. Specifically, by using a multiple-indicators analytical model, we examine the theoretical proposition that perceived threat posed by an out-group population mediates the relations between size of the out-group and exclusionary attitudes toward the out-group. The analysis does not support the theoretical expectation that actual size of the foreign population in the locale is likely to increase either perception of threat or exclusionary attitudes. Perceived size, however, is found to be associated, as expected, with perceived threat, and perceived threat is found to mediate the relations between perceived size and support for exclusionary practices against foreigners—the higher the perceived size, the more pronounced are both the threat and anti-foreigner attitudes. The findings and their significance are discussed in the light of sociological theories on the relations between minority size and discrimination.     

Toward an epistemology of nano-technosciences

This paper aims to contribute to the attempts to clarify and classify the vague notion of "technosciences" from a historical perspective. A key question that is raised is as follows: Does Francis Bacon, one of the founding fathers of the modern age, provide a hitherto largely undiscovered programmatic position, which might facilitate a more profound understanding of technosciences? The paper argues that nearly everything we need today for an ontologically well-informed epistemology of technoscience can be found in the works of Bacon-this position will be called epistemological real-constructivism. Rather than realist or constructivist, empiricist or rationalist, Bacon's position can best be understood as real-constructivist since it challenges modern dichotomies. Reflection upon the contemporary relevance of Bacon could contribute to the expanding and critical discussion on technoscience. In the following I will reconstruct the term "technoscience". My finding is that at least four different understandings or types of the term "technoscience" co-exist. In a second step, I will analyze and elaborate on Bacon's epistemological position. I will identify central elements of the four different understandings in Bacon's work. Finally, I will conclude that the epistemology of technoscience is, indeed, very old-it is the epistemological position put forward by Bacon.     

Considering the shareholder perspective: value-based management systems and stock market performance

We empirically study the use of value-based management systems in listed German firms and examine implications for firms’ stock market performance. Using a novel, hand-collected data set covering 1,083 firm years from 2002 to 2008, we find that value-based management systems become increasingly common. Specifically, in 2008 42% of our sample firms have implemented such a system. In the empirical analysis, we find that firms implementing value-based management systems earn both statistically significant and economically substantial abnormal stock market returns measured within a 2-year adoption phase. These excess returns are not jeopardized by poor post-adoption returns. In the analysis, we carefully control for risk and account for endogeneity concerns. Overall, our findings support the view that shareholders consider the adoption of a value-based management system as a credible signal that management will focus on shareholder interests and that such systems actually increase shareholder value.     

Loss prediction in a linear model under a linear constraint

Loss reserving is an important subject of actuarial mathematics. It aims at the prediction of future losses caused by claims which have incurred in the past but have not yet been closed. The problem of predicting such losses is particularly important in liability insurance. In the present paper we study conjoint prediction of paid and incurred losses in a linear model with a linear constraint which is intended to reduce the gap between the predictors of ultimate paid and incurred losses. We thus present an application to actuarial mathematics of the general result established by Kloberdanz and Schmidt (AStA Adv. Stat. Anal. 92:207–215, 2008).     

Movement Differences between Deliberate and Spontaneous Facial Expressions: Zygomaticus Major Action in Smiling

Previous research suggests differences in lip movement between deliberate and spontaneous facial expressions. We investigated within participant differences between deliberately posed and spontaneously occurring smiles during a directed facial action task. Using automated facial image analysis, we quantified lip corner movement during periods of visible Zygomaticus major activity. Onset and offset speed, amplitude of movement, and offset duration were greater in deliberate smiles. In contrast to previous results, however, lip corner movement asymmetry was not greater in deliberate smiles. Observed characteristics of deliberate and spontaneous smiling may be related to differences in the typical context and purpose of the facial signal. Karen L. Schmidt, Zara Ambadar, Jeffrey F. Cohn, and L. Ian Reed are affiliated with the University of Pittsburgh, Pittsburgh, PA 15260, USA. Jeffrey F. Cohn is also affiliated with the Carnegie Mellon University, Pittsburgh, PA 15260, USA. This research was supported by NIMH Grants MH15279 and 167376 to Karen L. Schmidt, and NIMH Grant MH 51435 to Jeffrey F. Cohn. We gratefully acknowledge the assistance of Adena Zlochower in digitizing videotape used in this analysis and Rachel Levenstein in the analysis of data described in this paper. Address correspondence to Karen L. Schmidt, University of Pittsburgh, 121 University Pl, Pittsburgh, PA 15260, USA; E-mail: kschmidt@pitt.edu     

Frontier production functions

This paper summarizes the literature on frontier production and cost functions and on their relationship to the problem of efficiency measurement.     

The Syndrome of Group-Focused Enmity: The Interrelation of Prejudices Tested with Multiple Cross-Sectional and Panel Data

Different types of prejudice are usually treated as separate constructs. We propose that they constitute a syndrome of group-focused enmity (GFE), that is, they are related to each other and share a common core that is strongly predicted by a generalized ideology of inequality. Furthermore, GFE components are supposed to have similar predictors and outcomes. An empirical test is presented using structural equation modeling on the syndrome, its causes, consequences, and structural stability over time. The study relies on three German cross-sectional probability samples (each N = 2,700) and a related panel study (2002, 2003, and 2004). The idea of a GFE syndrome is strongly supported. Future research is discussed, as well as alternative approaches of a common prejudice factor .