324,492 research outputs found
Critical Costume, an international research network
No full textInternational Research Network founded in 2013 by S. Bech and R Hann. Critical Costume is an international research network centred around a biennial conference and exhibition
Intraday liquidity management: a tale of games banks play
No full textOver the last few decades, most central banks, concerned about settlement risks inherent in payment netting systems, have implemented real-time gross settlement (RTGS) systems. Although RTGS systems can significantly reduce settlement risk, they require greater liquidity to smooth nonsynchronized payment flows. Thus, central banks typically provide intraday credit to member banks, either as collateralized credit or priced credit. Because intraday credit is costly for banks, how intraday liquidity is managed has become a competitive parameter in commercial banking and a policy concern of central banks. This article uses a game-theoretical framework to analyze the intraday liquidity management behavior of banks in an RTGS setting. The games played by banks depend on the intraday credit policy of the central bank and encompass two well-known paradigms in game theory: "the prisoner's dilemma" and "the stag hunt." The former strategy arises in a collateralized credit regime, where banks have an incentive to delay payments if intraday credit is expensive, an outcome that is socially inefficient. The latter strategy occurs in a priced credit regime, where postponement of payments can be socially efficient under certain circumstances. The author also discusses how several extensions of the framework affect the results, such as settlement risk, incomplete information, heterogeneity, and repeated play.Payment systems ; Banks and banking, Central ; Bank liquidity ; Game theory ; Credit
On nonparametric additive error models with discrete regressors
No full textThis thesis contributes to the literature on nonparametric additive error models with discrete explanatory variables. Although nonparametric methods have become very popular in recent decades, research on the impact of the discreteness of regressors is sparse. Main interest is in an unknown nonparametric conditional mean function in the presence of endogenous explanatory variables. Under endogeneity, the identifying power of the model depends on the number of support points of the discrete instrument relative to that of the regressor. Under non-parametric identification failure, we show that some linear functionals of the conditional mean function are point-identified, while some are completely unconstrained. A test for point identification is suggested. Observing that the simple nonparametric model can be interpreted as a linear regression, new approaches to testing for exogeneity of the regressor(s) are proposed. For the point-identified case, the test is an adapted version of the familiar Durbin-Wu-Hausman approach. This extends the work of Blundell and Horowitz (2007) to the case of discrete regressors and instruments. For the partially identified case, the Durbin-Wu-Hausman approach is not available, and the test statistic is derived from a constrained minimization problem. In this second case, the asymptotic null distribution is non-standard, and a simple device is suggested to compute the critical values in practical applications. Both tests are shown to be consistent, and a simulation study reveals that both have satisfactory finite-sample properties. The practicability of the suggested testing procedures is illustrated in applications to the modelling of returns to education
Desarrollo de la versión en portugués de la Escala de Evaluación de la Manía de Bech-Rafaelsen (EAM-BR)
No full textNo presente artigo, é apresentado o desenvolvimento da versão em português da Bech-Rafaelsen Mania Rating Scale (BRMaS) de Bech e colaboradores intitulada: Escala de Avaliação de Mania de Bech- Rafaelsen (EAM-BR). A EAM-BR foi desenvolvida para ser aplicada na forma de uma entrevista semiestruturada breve conduzida pelo clínico. Ela investiga a presença versus a ausência de sintomas maníacos, sua severidade e sua mudança em resposta ao tratamento. São descritas as qualidades psicométricas da escala original. Com este artigo, a comunidade científica passa a dispor em português de mais um importante instrumento para avaliação do estado maníaco.versión en portugués de la Bech-Rafaelsen Mania Rating Scale (BRMaS) de Bech y colaboradores titulada: Escala de la Evaluación de Manía de Bech- Rafaelsen (EAM-BR). La EAM-BR fue desarrollada para ser aplicada en la forma de entrevista semiestructurada breve conduzida por el clínico. Ella investiga la presencia versus la ausencia de síntomas maníacos, su severidad y su mudanza en respuesta al tratamiento. Son descriptas las cualidades psicométricas de la escala original. Con este artículo la comunidad científica dispone, en portugués, de un importante instrumento a más para la evaluación del estado maníaco.In this article the authors present the development of the Portuguese-language version of a scale intended to evaluate the manic state: Bech-Rafaelsen Mania Rating Scale (BRMaS). The BRMaS was created in order to assist the clinician to evaluate a manic patient in a semi-structured interview. This article provides the scientific community with an important instrument to rate manic presentations in native speakers of Portuguese
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
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