Archival or perceived measures of environmental uncertainty? Conceptualization and new empirical evidence

Environmental uncertainty is a major determinant in many managerial decisions and evaluations. Yet, there is no consensus what constitutes a valid measure of uncertainty to which executives can respond. This paper explicates conceptual and methodological differences between Archival Environmental Uncertainty (AEU) and Perceived Environmental Uncertainty (PEU).     

Block‐threshold‐adapted Estimators via a Maxiset Approach

We study the maxiset performance of a large collection of block thresholding wavelet estimators, namely the horizontal block thresholding family. We provide sufficient conditions on the choices of rates and threshold values to ensure that the involved adaptive estimators obtain large maxisets. Moreover, we prove that any estimator of such a family reconstructs the Besov balls with a near‐minimax optimal rate that can be faster than the one of any separable thresholding estimator. Then, we identify, in particular cases, the best estimator of such a family, that is, the one associated with the largest maxiset. As a particularity of this paper, we propose a refined approach that models method‐dependent threshold values. By a series of simulation studies, we confirm the good performance of the best estimator by comparing it with the other members of its family.     

Optimal Designs for Additive Linear Models

In additive linearr models optimal designs can be constructed as a product of those marginal designs which have certain optimality properties in the corresponding single-factor models. In particular, these results are obtained for the reduced parameter vector without constant term and for the parameters associated with single factors.     

Optimal design for discrete choice experiments

In this paper we derive locally optimal designs for discrete choice experiments. As in Kanninen (2002) we consider a multinomial logistic model, which contains various qualitative attributes as well as a quantitative one, which may range over a sufficiently large interval. The derived optimal designs improve upon those given in the literature, but have the feature that every choice set contains alternatives, which coincide in all but the quantitative attributes. The multinomial logistic model will then lead to a response behavior, which is apparently unrealistic.     

Family Location and Caregiving Patterns from an International Perspective

We conduct a cross‐national econometric analysis of intra‐family location and caregiving patterns. Using European data, we first assess, from an international perspective, the relationship between family structure and the geographic proximity between adult children and their parents. We then examine whether differences in family structure are related to the amount of informal care adult children provide to their elderly parents. Lastly, we look for cross‐country differences in family location and caregiving patterns, and interpret observed differences in terms of heterogeneous institutional solutions to elderly care. Our results not only provide a new empirical perspective on the geography of the family, but also provide insights into how family‐related and institutional factors shape patterns of time transfers from adult children to elderly parents.     

Values and Democracy in Imperial Germany

The relationship between societal values and political, particularly democratic development has been of interest to many students of politics. This paper reports data on the values of German society before WW I. An instrument to measure value orientations on the basis of Action Theory is described and its underlying assumptions as well as those pertaining to the use of fiction as a source on values in historical periods are discussed. Findings are reported concerning Prussians and Southerners, two major groups in German society. The data show that Germany was characterized by high value heterogeneity of its population, a factor which contributed to the lack of national democratic development before WW I.     

Erste Ergebnisse faktischer Anonymisierung wirtschaftsstatistischer Einzeldaten

Summary: This paper presents first results of the project Factual anonymization of business microdata. The project aims at creating and providing scientific–use files of business data. For this, appropriate anonymization strategies and methods are created. The anonymization procedures are judged by whether they can guarantee the factual anonymity of company and operating data without limiting their potential value for statistical analysis. As an example the survey of German cost structure in the processing industry is considered. Here, both the impact of different anonymization methods on the potential use of the data as well as their effect on the re–identification risk is examined.

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Zusammenfassung: Mit diesem Beitrag werden erste Ergebnisse des Projektes Faktische Anonymisierung wirtschaftsstatistischer Einzeldaten vorgestellt. Ziel des Projektes ist es, die Grundlagen für die Erstellung von Scientific–use–files im Bereich der Unternehmens– und Betriebsdaten zu legen. Hierzu werden entsprechende Anonymisierungsverfahren und –strategien entwickelt. Die Anonymisierungsverfahren müssen danach beurteilt werden, ob sie die faktische Anonymität von Unternehmens– und Betriebsdaten sicherstellen können, ohne das Analysepotenzial über Gebühr einzuschränken. Am Beispiel der Kostenstrukturerhebung im Verarbeitenden Gewerbe werden erste Ergebnisse vorgestellt. Dabei wird sowohl untersucht, wie sich verschiedene Anonymisierungsmaßnahmen auf das Analysepotenzial der Daten auswirken, als auch welche Effekte sie auf das Re–Identifikationsrisiko haben.