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Preisflexibilität, Konzentration und Risikoeinstellung e. informationstheoret. u. empir. Unters. für d. Bundesrepublik Deutschland
No full textPreisflexibilität, Konzentration und Risikoeinstellung: eine informationstheoretische und empirische Untersuchung für die Bundesrepublik Deutschland
No full textPreisflexibilität, Konzentration und Risikoeinstellung : e. informationstheoret. u. empir. Unters. für d. Bundesrepublik Deutschland. - Frankfurt am Main u.a. : Lang, 1989. - XI, 179 S. - Zugl.: Augsburg, Univ., Diss., 1987 u.d.T.: Das Preisverhalten in Abhängigkeit von Konzentration und Risikoeinstellung. - (Europäische Hochschulschriften : 5, Volks- und Betriebswirtschaft ; 1017
A new mixed multiplicative-additive model for seasonal adjusment
No full textUsually, seasonal adjustment is based on time series models which decompose an unadjusted series into the sum or the product of four unobservable components (trendcycle, seasonal, working-day and irregular components). In the case of clearly weatherdependent output in the west German construction industry, traditional considerations lead to an additive model. However, this results in an over-adjustment of calendar effects. An alternative is a multiplicative-additive mixed model, the estimation of which is illustrated using X-12-ARIMA. Finally, the relevance of the new model is shown by analysing selected time series for different countries
A new mixed multiplicative-additive model for seasonal adjusment
Get PDFUsually, seasonal adjustment is based on time series models which decompose an unadjusted series into the sum or the product of four unobservable components (trendcycle, seasonal, working-day and irregular components). In the case of clearly weatherdependent output in the west German construction industry, traditional considerations lead to an additive model. However, this results in an over-adjustment of calendar effects. An alternative is a multiplicative-additive mixed model, the estimation of which is illustrated using X-12-ARIMA. Finally, the relevance of the new model is shown by analysing selected time series for different countries. --Seasonal adjustment,calendar adjustment,over-adjustment,multiplicative-additive model,X-12-ARIMA
Relative Preise, gesamtwirtschaftliche Aktivität und Strukturwandel
No full textRelative Preise, gesamtwirtschaftliche Aktivität und Strukturwandel : Beitrag für d. DFG-Workshop am 12./13. Dez. 1985 in Augsburg / von Bernhard Gahlen. Unter Mitarb. von Stefan Arz ... - Augsburg, 1985. - 57 S
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Preisflexibilität, Konzentration und Risikoeinstellung eine informationstheoretische und empirische Untersuchung für die Bundesrepublik Deutschland
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