1,720,962 research outputs found
Hiring mechanisms, application costs and stability
No full textThis note considers a hiring mechanism with multiple applications and application costs, which encompasses the common features of many real-world procedures. Multiple applications impose serious coordination problems to colleges, but application costs restore stability. With zero application costs unstable allocations arise at equilibrium. We provide necessary and sufficient conditions that guarantee the stability of the outcomes. © 2008 Elsevier Inc. All rights reserved
Costly information acquisition. Is it better to toss a coin?
No full textThis paper presents a strategic model of common value elections with endogenous information acquisition. It proves that majoritarian elections can fail to aggregate information when voters have heterogeneous skills and provides necessary and sufficient conditions for information aggregation. Inefficiencies can be partially corrected by limiting participation to the most competent citizens, a result which provides a rational foundation for epistocratic government
Branch points, Fourier integrals and Pompeiu problem
No full textLet h be the square root of a polynomial and assume thath is univalent on the unitary disk of the complex plane. Then the set Ω=h(D) has the Pompeiu property
Non-revelation mechanisms in many-to-one markets
No full textIn this study we present a simple mechanism in a many-to-one matching market where multiple costless applications are allowed. The mechanism is based on the principles of eligibility and priority and it implements the set of stable matchings in Subgame Perfect Nash Equilibrium. We extend the analysis to a symmetric mechanism where colleges and students interchange their roles. This mechanism also implements the set of stable matchings
Strategy-proof and group strategy-proof stable mechanisms: An equivalence
Full text linkWe prove that group strategy-proofness and strategy-proofness are equivalent requirements on stable mechanisms in priority-based resource allocation problems with multi-unit demand. The result extends to the model with contracts
Implementation with renegotiation when preferences and feasible sets are state dependent
Full text linkIn this paper, we present a model of implementation where infeasible
allocations are converted into feasible ones through a process of renegotiation that is
represented by a reversion function. We describe the maximal set of Social Choice
Correspondences that can be implemented in Nash Equilibrium in a class of reversion
functions that punish agents for infeasibilities. This is used to study the implementation
of the Walrasian Correspondence and several axiomatic solutions to problems of
bargaining and taxation.Publicad
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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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