Variations on two themes in Durkheim'sDivision du travail: Power,solidarity, and meaning in Division of Labor

This paper explores two themes that had a significant place in Durkheim's Division of Labor:the idea that people's needs and wants vary across epoches and cultures, and the conception of societies as systems. The first leads to a rejection of efficiency as the primary driving force behind advances in the division of labor. Considering power in addition to efficiency, but also the complex conditions of trust and meaning, leads into questions of interdependence and systems analysis.     

Will this voluntary project be successful?: Validation of an instrumental model of volunteering behavior

This study examines whether instrumental considerations influence people's decision to start volunteering. Using social dilemma theory as a basis, the authors assume that the decision to start volunteering is contingent on whether a voluntary program will be successful in achieving a collective goal. The study's findings underscore the importance of anticipated success likelihood perceptions, which appear to have a major impact on potential volunteers' decision‐making process. Furthermore, social consensus beliefs relating to proximate referents have a more distinct impact than do social consensus beliefs relating to distant referents. Finally, the study reveals interesting gender‐specific differences. On the basis of the results from the empirical analysis, the study offers implications for management and avenues for further research.     

Effect of dimensionality on discrimination

Discrimination problems in a high-dimensional setting is considered. New results are concerned with the role of the dimensionality in the performance of the discrimination procedure. Assuming that data consist of a block structure two different asymptotic approaches are presented. These approaches are characterized by different types of relations between the dimensionality and the size of the training samples. Asymptotic expressions for the error probabilities are obtained and a consistent approximation of the discriminant function is proposed. Throughout the paper the importance of the dimensionality in the asymptotic analysis is stressed.     

Let us do the twist again

Krämer (Sankhy $\bar{\mathrm{a }}$ 42:130–131, 1980) posed the following problem: “Which are the $\mathbf{y}$ , given $\mathbf{X}$ and $\mathbf{V}$ , such that OLS and Gauss–Markov are equal?”. In other words, the problem aimed at identifying those vectors $\mathbf{y}$ for which the ordinary least squares (OLS) and Gauss–Markov estimates of the parameter vector $\varvec{\beta }$ coincide under the general Gauss–Markov model $\mathbf{y} = \mathbf{X} \varvec{\beta } + \mathbf{u}$ . The problem was later called a “twist” to Kruskal’s Theorem, which provides conditions necessary and sufficient for the OLS and Gauss–Markov estimates of $\varvec{\beta }$ to be equal. The present paper focuses on a similar problem to the one posed by Krämer in the aforementioned paper. However, instead of the estimation of $\varvec{\beta }$ , we consider the estimation of the systematic part $\mathbf{X} \varvec{\beta }$ , which is a natural consequence of relaxing the assumption that $\mathbf{X}$ and $\mathbf{V}$ are of full (column) rank made by Krämer. Further results, dealing with the Euclidean distance between the best linear unbiased estimator (BLUE) and the ordinary least squares estimator (OLSE) of $\mathbf{X} \varvec{\beta }$ , as well as with an equality between BLUE and OLSE are also provided. The calculations are mostly based on a joint partitioned representation of a pair of orthogonal projectors.     

A family of bivariate distributions with non-elliptical contours

In this paper, a family of copulas with two parameters is proposed and its dependence analysis is performed. The corresponding family of bivariate distributions with specified marginals is constructed. For normal marginals, the new distributions are non-elliptical and can be applied in data analysis. They provide various alternative hypotheses for testing normality. Finally, an example is given.     

Minimum distance estimators in extreme value distributions

We define minimum distance estimators for the parameters of the extreme value distribution G_o based on the Cramer-von-Mises distance. These estimators are rather robust and consistent, but asymptotically less efficient than the maximum likelihood estimators which are not robust. A small simulation study for finite sample size show that under G_o the finite efficiency of the minimum distance estimators is rather similar to the maximum likelihood ones.     

Standardisierte Qualitätsinformationen und ihr Einfluss auf die Wahl von Leistungsanbietern – Ergebnisse einer empirischen Studie am Beispiel der Qualitätsberichte von Krankenhäusern

This study analyses the impact of standardized quality information of complex services on decisions, exemplified for Germany’s hospital quality reports. The presumed impact of quality information on decisions is based on theoretical considerations and hypotheses are developed accordingly. Though results of two experiments show that simplified quality indicators used in the quality reports for hospitals basically lead to consistent decisions, results also show that the impact of standardized quality information on decisions is not stable. It is disturbed and superimposed by the effects of additionally presented quality information. Implications for competition on hospital markets and for the effectiveness of standardized quality information as they are used in the hospitals’ quality reports are discussed as well as general conclusions about standardized information of complex services are drawn.     

Passionate Experiences in Adolescence: Situational Variability and Long‐Term Stability

This study investigates adolescents' situational passionate experiences, defined as states of strong commitment and intense affect. We examine the extent to which experiencing passion was specific to situations versus individual differences, and explore which activities are likely to elicit adolescents' passion. Using longitudinal experience sampling method (ESM) data from a representative sample of 996 adolescents (54.6% females) in three cohorts (6th, 8th, and 10th grade at baseline), we examine whether adolescents' frequency of passionate experiences remained stable across 2 years. Results of multilevel analyses revealed that situational determinants accounted for 80% of variance in passion, while 20% were due to characteristics of the person that remained stable across 1 week of ESM assessment. An adolescent's percentage of passionate experiences among all observed experiences remained stable across 2 years in rank order and mean level.