CCR or BCC: what if we are in the wrong model?

The CCR model by Charnes et al. (Eur J Oper Res 2:429–444, 1978) together with the BCC model by Banker et al. (Manag Sci 30:1078–1091, 1984) are the most popular approaches of measuring efficiency among a group of decision making units, DMUs, in data envelopment analysis, DEA. The right choice of a DEA model—CCR or BCC—often, if not always, is a difficult decision. To evaluate a DMU’s efficiency for both models might be helpful, but it does not always capture the essential issues at stake. In this paper we propose a comparative analysis of both concepts: How does activity scaling under constant BCC-efficiency influence CCR-efficiency. And inversely, how does BCC-efficiency behave when activity scaling under constant CCR-efficiency is applied. Such findings of mutual effects improve a DMU’s ability to reassess upsizing and downsizing of activities. Moreover, it allows for exact calculations of the resulting economic effects, and these effects give new insights beyond classical DEA. Finally, scale efficiency turns out to be the ideal concept to control these activity changes, rather than just CCR- or BCC-efficiency. We use a little numerical example to emphasize advantages of the new concept and sketch the new findings for a theater scenery.     

Authors’ response: on the role of data,statistics and decisions in a pandemic

AStA Advances in Statistical Analysis -     

How is My Partner Feeling in Different Daily-Life Settings? Accuracy of Spouses' Judgements about Their Partner's Feelings at Work and at Home

How accurately do spouses know their partner's feelings when the partneris not physically present, but in a specific setting (at work, or at home)?This question addresses a special kind of empathic inference that relies mainly on content knowledge and projection rather than perception. We answered this question using a computer assisted diary approach. A total of 190 husbands and wives outof 95 couples simultaneously recorded how they were feeling and what they thought their partner was feeling, six times each day during an ordinary week. They also recorded where they were, who they were with, and where they thought their partner was. This enabled us to assess measures of accuracy and assumed similarity under natural conditions in spouses' daily lives. Results showed that the spouses' judgements of the absent partner's feelings relied on their own feelings (assumed similarity). Despite this they were often quite accurate, even when assumed similarity was controlled. In general, our findings indicate that spouses have a basic knowledge about their partner's feelings when they are apart. However, the specific situation, the items being judged, and the gender of the spouses also need to be taken into account.     

Right-wing extremist violence among adolescents in Germany

What are the preconditions for right-wing extremist violence among German youths? For several years, the rate of this violence has been increasing in Germany, and the same can be observed for right-wing extremist orientations characterized by the coming together of ideologies of unequal worth and the acceptance of violence as a mode of action. And although it is emphasized that approval of and willingness to use violence do not automatically lead to actual acts of violence, this article suggests that the existence of these convictions in society helps to legitimize attitudes that become expressed in violence, in particular among youths.This article presents a five-stage process model that portrays the underlying preconditions for acts of right-wing extremist violence, the contexts in which such violence takes place, and the factors that cause it to escalate. This structural model is used to outline central empirical findings of recent German quantitative and especially qualitative studies about right-wing extremist violent offenders. For analytical reasons, the basic elements of the process model (socialization, organization, legitimation, interaction, and escalation) are treated separately. The authors also examine right-wing extremist violence from a disintegrative perspective. Given that intersubjective recognition is an existential human need, right-wing extremist violence is understood as a "productive" way of dealing with individual recognition deficits. On the basis of the integration dimensions of social disintegration theory, three fundamental recognition needs are distinguished. Right-wing extremist violence can best be explained as a consequence of recognition deficits in all three central integration dimensions.     

How Managers Talk about their Consumption of Popular Management Concepts: Identity,Rules and Situations

This paper analyses how top managers account for their consumption of popular management concepts. By ‘consumption’ we refer to managers acting as active users of popular management concepts within their organizations. After reviewing the relevant literature, we argue that the logic of appropriateness is a better theoretical perspective to view, understand and analyse managers' accounts of concept consumption than is the logic of consequence. We apply this perspective to extensive interviews we conducted with top managers in Germany. Based on the managers' own accounts of how they understand and apply popular management concepts, we identified four discourse categories: (1) learning from others' experiences, (2) controlling organizational change, (3) gaining external legitimacy and (4) collective sensemaking. We argue that these discourse categories all draw on the social norm of rationality central to managerial identity, while differing in socially defined rules about how rationality is realized in typical management situations. Our findings strongly encourage researchers, when investigating popular management concepts in the future, to take into account the situational nature of rationality that circumstantiates the consumption of concepts.