Ein Optimierungsansatz für ein fortlaufendes Datenqualitätsmanagement und seine praktische Anwendung bei Kundenkampagnen

Zusammenfassung  Die Verbesserung der Datenqualit?t (DQ) wird in Wissenschaft und Praxis intensiv diskutiert. Ob die ergriffenen DQ-Ma?nahmen jedoch ?konomisch überhaupt gerechtfertigt sind und wann und in welchem optimalen Umfang investiert werden soll, wird oftmals nicht analysiert. Zur Untersuchung dieser Fragestellungen entwickeln die Autoren ein Optimierungsmodell, mit dem die Umf?nge und Zeitpunkte für Investitionen in ein fortlaufendes DQ-Management ermittelt werden k?nnen. Hierdurch lassen sich vier Investitionsszenarien mit allgemeinen Handlungsempfehlungen identifizieren. So ist bspw. bei ehemalig intensiven Kundenbeziehungen, die sich inzwischen verschlechtert haben (nur wenige Gesch?ftstransaktionen), zwar über mehrere Perioden zu investieren, jedoch bei einem sich nicht ver?ndernden, geringen Transaktionsanteil, in abnehmender H?he. Daneben l?sst sich u. a. zeigen, dass der Umfang der existierenden Kundendatenmenge und nicht, wie oftmals angeführt, ein schlechtes existierendes DQ-Niveau ma?geblich für die Entscheidung ist, ob überhaupt in DQ investiert werden soll. Anhand einer Fallstudie wird abschlie?end nicht nur die praktische Anwendbarkeit des Optimierungsmodells verdeutlicht, sondern es soll zudem aufgezeigt werden, wie sich für einen konkreten Sachverhalt detaillierte Empfehlungen hinsichtlich des DQM-Einsatzes ermitteln lassen.

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A model based approach for continuous data quality management and its implementation to improve customer campaigns

Summary  The improvement of data quality (DQ) currently finds a great deal of attention in science as well as in practice. Nevertheless there are two fundamental questions that are often ignored in the analysis: i) Are the DQ measures already implemented economically reasonable? ii) When and to what extent is investing into the improvement of DQ justifiable? For an in-depth understanding considering the design of DQ management the authors develop an optimization model which determines the optimal amount and point of time for consecutive DQ investments. Hence they distinguish between four scenarios and propose corresponding action recommendations. For example, a customer relationship with declining intensity up to the present (i. e. diminishing volume of business transactions) requires DQ investments over several future business periods- and at a decreasing investment rate in cases where the transaction volume continues to go down. Additionally it can be shown that in general the amount of available client data is a crucial factor for the decision whether it is reasonable to invest into DQ at all as opposed to a low quality level — which is often claimed. A concluding case study determines the practical applicability of the proposed optimization model.

     

Promoting Good Behavior: Does Social and Temporal Framing Make a Difference?

Social marketing research grows increasingly relevant in the face of persistent modern problems; this study examines how social and temporal framing might influence the effectiveness of social marketing campaigns. By featuring diverse contexts, this study addresses both individual and prosocial behaviors. With a basis in self-referencing and psychological distance research, as well as social dilemma theory, the authors derive hypotheses about social and temporal framing effects. A between-subjects experiment, incorporated into an online survey among a large student sample, reveals the relevance of temporal framing for enhancing intentions to change both individual and prosocial behaviors. Social framing influences behavioral intentions especially in the prosocial condition. The category of behavior determines the effectiveness of social marketing related to that behavior. However, the small effect sizes and lack of globally interpretable effects indicate that social and temporal framing do not make relevant differences in social marketing effectiveness.     

Coaching im Spagat zwischen Praxis und Wissenschaft

Coaching between practice and science. Coaching theory and -practice are two sides of the same coin. As contrasted with the successful practice the theoretical and scientific explanation of coaching is still unattended despite the fact that serious coaching conceptions are to base on epistemological and scientific premises; and this only for the sake of practice. The text at hand will point out the limits and the possibilities to approach the task for answering to the questions of differences between science, theory and practice.     

Bindungsdimensionen und Studieneinstellungen

Hazan &; Shaver (1990) relate the emotional attachment and the working attitude of adults to the effects of emotional attachment and exploration experiences in early childhood.The present study analyses this question and relates the emotional attachment dimensions of anxiety and avoidance (Grau, 1994) to education oriented attitudes, e.g. interest in studies contents, satisfaction and priority in and of studies vs. private life and career orientation. 126 teaching profession and psychology students answered a questionnaire including the following concepts: Attachment dimensions, attachment types, study related attitudes and life-orientation. Attachment dimensions and attachment types showed the expected convergent validity. Results confirm most — bot not all — of the predicted relations between relationship’s dimensions and study oriented attitudes.     

Psychologische Aspekte bei Geiselnahmen

Taking of hostages in the civil life occurs relatively seldom, however, generates often a special attention of the media. Also within the scope of peace-protecting and peace-keeping applications of international support contingents the (low) risk insists that soldiers and female soldiers can become victims of taking of hostages. Every taking of hostages shows a physical and above all also psychic extreme situation for the affected persons. The preparation on those situations, the personal availability linked with it of de-escalating behavior patterns as well as the attention of certain behavioral principles are for surviving and the coping with taking of hostages of particular importance.     

PARTIAL TAX HARMONIZATION THROUGH INFRASTRUCTURE COORDINATION

In this article, we analyze the role of infrastructure coordination in facilitating partial tax harmonization within a coalition of asymmetric jurisdictions. Two main results are obtained. First, productivity asymmetries represent a serious handicap for partial tax harmonization that can be remedied by coordinating nontax instruments when they allow to reduce these asymmetries. Second, infrastructure coordination through the choice of a common investment level is particularly indicated when asymmetries between potential members of a tax coalition are large. The current usage of European Union (EU) structural funds orientated to reduce regional infrastructure deficits is therefore suitable to facilitate tax harmonization within the EU. (JEL H87, H54, H21)     

Motivating teammates: The leader’s choice between positive and negative incentives

Team leaders often provide incentives for cooperation. A challenging question is how different incentive schemes and their actual choice by the leader shape the team’s culture and contribute to the team’s success. To shed light on this issue we investigate how a leader chooses between rewards or punishment in an experimental team setting and how teammates’ contributions are influenced by this choice. Leaders show a clear initial preference for rewards, which diminishes over time in some teams. Leaders who observe more free-riders in their teams tend to switch to punishment incentives. A change from rewards to negative incentives results in an immediate and enduring increase in contributions. On the other hand, contributions show a decreasing trend in teams with a leader who sticks to rewards.     

Problem attribution and intervention. The interpretation of problem causations and solutions in regard of Brickman et al.

Typologies of problem perception are of great importance for the reconstruction of social workers’ professional ideologies. The best-known typology has been provided by Brickman et al. who differentiated between a medical, moral, enlightenment, and compensatory model. The article discusses this typology on a conceptual level and indicates its central flaws. An empirical study is presented in which an alternative attempt to develop a typology is tested. The evaluation refers to a wider spectrum of perceptions of problem causes and solutions than the typology of Brickman et al. The resulting typology comprises a ‘social’, a ‘workfare’, a ‘pathology’, and an ‘education’ type.     

Implementing Box–Cox Quantile Regression

The Box–Cox quantile regression model introduced by Powell (1991 Powell , J. ( 1991 ). Estimation of monotonic regression models under quantile restrictions . In: Barnett , W. , Powell , J. , Tauchen , G. , eds. Nonparametric and Semiparametric Methods in Econometrics . New York , NY : Cambridge University Press , pp. 357 – 384 . [Google Scholar]) is a flexible and numerically attractive extension of linear quantile regression techniques. Chamberlain (1994 Chamberlain , G. ( 1994 ). Quantile regression, censoring, and the structure of wages . In: Sims , C. , ed. Advances in Econometrics: Sixth World Congress . Vol. 1 . Econometric Society Monograph . Cambridge : Cambridge University Press . [Google Scholar]) and Buchinsky (1995 Buchinsky , M. ( 1995 ). Quantile regression, Box–Cox transformation model, and the U.S. wage structure, 1963–1987 . Journal of Econometrics 65 : 109 – 154 .[Crossref], [Web of Science ®] , [Google Scholar]) suggest a two stage estimator for this model but the objective function in stage two of their method may not be defined in an application. We suggest a modification of the estimator which is easy to implement. A simulation study demonstrates that the modified estimator works well in situations, where the original estimator is not well defined.