1,721,049 research outputs found

    The Joy of Winning and the Frustration of Losing: A Psychophysiological Analysis of Emotions in First-Price Sealed-Bid Auctions

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    Research on emotions suggests that auction outcomes may elicit an aversive "frustration of losing" as well as a rewarding "joy of winning" response. However, little is known about the intensity of these emotional reactions and how they relate to other factors in the auction process. In this article, we present an experiment in which subjects participated in a sequence of first-price sealed-bid auctions. The psychophysiological measures skin conductance response (SCR) and heart rate (HR) were recorded as proxies for both the intensity and the valence of emotions. Our results show that the deceleratory responses in HR when losing an auction are stronger than when winning an auction. The drop in BR itself can be interpreted as a reaction to stimuli with negative emotional valence. Moreover, we found that winning an auction induces a stronger SCR compared with losing an auction. Interestingly, this effect even holds for different value classes and different amounts of payoffs. Moreover, we show that bidders' SCR amplitude increases in the relation to the amount of money at stake. However, we cannot make a definite determination as to whether the valuation or the potential nominal payoff triggers this effect. We conclude that psychophysiological methodologies are appropriate for the measurement of rewarding, as well as immediate aversive emotions in market decision making, and even allow identifying fined-grained emotional characteristics

    Drei, Zwei, Eins, Meins - Emotionen bei Online-Versteigerungen - Beitrag bei Radio KIT am 24.01.2013

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    siehe auch: http://www.radio.kit.edu/205.php Drei, Zwei, Eins, Mein

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Understanding auction fever: a framework for emotional bidding

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    Auction fever is a multifaceted phenomenon that is frequently observed in both traditional and Internet auctions. In order to gain a better understanding of its causes, we develop a conceptual framework to analyze emotions in auctions, which is based on an exhaustive literature review. The framework integrates rational calculus with emotional aspects and suggests that emotional processing is triggered at three different stages of an auction: First, the economic environment can affect a bidder's level of perceived competition and thus influence the bidding strategy prior to the auction. Second, auction events may have ramifications on the bidder's emotional state during the auction due to previous investments or perceived ownership. Third, past auction outcomes may impact future bidding behavior through emotions such as the joy of winning or loser regret. Auction fever, eventually, is a phenomenon that results from the interplay of these emotional processes and causes a bidder to deviate from an initially chosen bidding strategy

    Variations on the Author

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    “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

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    We 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

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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