1,721,036 research outputs found
Pledge-and-review in the laboratory
Get PDFWe perform a laboratory test of Pledge-and-Review bargaining, implementing a simplified version of the model analysed in Harstad (2021a). In theory, this institution should increase contributions to a public good only if there is uncertainty over the value of possible future payoffs. In contrast, we find that Pledge-and-Review increases efficiency in all the settings we investigate, and that the improvement is most persistent in our setting without uncertainty. Our results suggest that the Pledge-and-Review institution may be useful, even without uncertainty, as it allows conditional cooperators to test, risk free, the cooperativeness of their partners. (C) 2021 Elsevier Inc. All rights reserved
Verkaufsurkunde über ein Haus
No full textIl contributo contiene la prima edizione della parte greca di un contratto demotico-greco relativo a una compravendita di casa situata nel villaggio di Socnopaiou Nesos
8. Verkaufsurkunde über einen Hausteil (ursprünglich als Sicherheit)
No full textIl contributo contiene la prima edizione della parte greca di un contratto demotico-greco relativo a una compravendita di casa situata nel villaggio di Socnopaiou Nesos
Internet Peering as a Network of Relations
Get PDFWe apply results from recent theoretical work on networks of relations to analyze optimal peering strategies for asymmetric ISPs. It is shown that - from a network of relations perspective – ISPs’ asymmetry in bilateral peering agreements need not be a problem, since when these form a closed network, asymmetries are pooled and information transmission is faster. Both these effects reduce the incentives for opportunism in general, and interconnection quality degradation in particular. We also explain why bilateral monetary transfers between asymmetric ISPs (Bilateral Paid Peering), though potentially good for bilateral peering, may have rather negative effects on the sustainability of the overall peering network
Networks of relations and Word-of-Mouth communication
No full textWe study networks of relations – groups of agents linked by several cooperative relationships – exploring equilibrium conditions under different network configurations and information structures. Relationships are the links through which soft information can flow, and the value of a network lies in its ability to enforce agreements that could not be sustained without the information and sanctioning power provided by other network members. The model explains why network closure is important; why stable subnetworks may inhibit more valuable larger networks; and why information flows and action choices cannot be analyzed separately. Contagion strategies are suboptimal here, as they inhibit information transmission, delaying punishments. JEL Codes: C73, D83, D85, Z13 Keywords: cooperation, collusion, communication, community enforcement, contagion, soft information, private monitoring, multimarket contact, repeated games, relational contracts, reputation, rumors, social networks, social capita
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
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