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51.
We report an experiment that asks whether people in a strategic situation behave according to the Golden Rule, that is, do not treat others in ways that they find disagreeable to themselves, a property that we call role‐reversal consistency. Overall, we find that over three quarters of the subjects are role‐reversal consistent. Regression analysis suggests that this finding is not driven by players maximizing their subjective expected monetary earnings given their stated beliefs about their opponents' behavior. We find that subjects' stated beliefs and actions reveal mild projection bias. (JEL C78, C91) 相似文献
52.
We present a test of the fit to a Poisson model based on the empirical probability generating function (epgf). We derive the limiting distribution of the test under the Poisson hypothesis and show that a rescaling of it is approximately independent of the mean parameter in the Poisson distribution. When inspected under a simulation study over a range of alternative distributions, we find that this test shows reasonable behaviour compared to other goodness-of-fit tests like the Poisson index of dispersion and smooth test applied to the Poisson model. These results illustrate that epgf-based methods for anlyzing count data are promising. 相似文献
53.
This article is a review of some of the main research approaches to understanding racial profiling as it manifests in the traffic stop. It orients the emergence of racial profiling as a product of the war on drugs philosophy guiding law enforcement in the late 20th century and discusses how the contemporary nature of racial profiling has origins in a long history of racialized policing in the United States. Theoretical and methodological approaches to the issue, particularly from mainstream criminologists, focus on quantitative assessment of exposure to law enforcement agents and rational choice-based arguments that it makes sense to target certain groups based on the hue of the criminal justice system. More critical approaches examined within complicate this notion by contextualizing racial profiling in contemporary times as a mere manifestation of historical efforts by the state to marginalize communities of color. 相似文献
54.
Random variables may be compared with respect to their location by comparing certain functionals ad hoc, such as the mean
or median, or by means of stochastic ordering based directly on the properties of the corresponding distribution functions.
These alternative approaches are brought together in this paper. We focus on the class of L-functionals discussed by Bickel
and Lehmann (1975) and characterize the comparison of random variables in terms of these measures by means of several stochastic
orders based on iterated integrals, including the increasing convex order. 相似文献
55.
Susana Mendes M. José Fernández-Gómez Sónia Cotrim Marques Miguel Ângelo Pardal Ulisses Miranda Azeiteiro M. Purificación Galindo-Villardón 《Journal of applied statistics》2017,44(15):2729-2755
Relationships between species and their environment are a key component to understand ecological communities. Usually, this kind of data are repeated over time or space for communities and their environment, which leads to a sequence of pairs of ecological tables, i.e. multi-way matrices. This work proposes a new method which is a combined approach of STATICO and Tucker3 techniques and deals to the problem of describing not only the stable part of the dynamics of structure–function relationships between communities and their environment (in different locations and/or at different times), but also the interactions and changes associated with the ecosystems’ dynamics. At the same time, emphasis is given to the comparison with the STATICO method on the same (real) data set, where advantages and drawbacks are explored and discussed. Thus, this study produces a general methodological framework and develops a new technique to facilitate the use of these practices by researchers. Furthermore, from this first approach with estuarine environmental data one of the major advantages of modeling ecological data sets with the CO-TUCKER model is the gain in interpretability. 相似文献
56.
57.
Miguel M. Clemente Díaz 《Revista de Psicología Social》2013,28(2):167-179
ResumenSe realiza en primer lugar una breve revisión de algunas de las variables utilizadas en la literatura para diferenciar a los sujetos delincuentes de los no delincuentes, prestando especial atención a aquellas que se han empleado en el estudio de la mujer delincuente; se concluye en la introducción de este artículo que la mayoría de los autores encuentran diferencias significativas a nivel psicológico entre ambas poblaciones. Se planea a continuación un estudio en el que se trata de demostrar la falsedad de tal afirmación, debido a la gran disparidad de los sujetos empleados en otros estudios (muestras de control no sólo no delincuente, sino de distinta clase social, nivel cultural, edad, etc.). Controladas dichas variables, se realiza una comparación de mujeres delincuentes y no delincuentes en las variables siguientes: inteligencia cuantitativa, sinceridad, neuroticismo, extraversión y “locus of control”, encontrándose apoyo para la hipótesis inicial (no hubo diferencias significativas entre ambos grupos), menos en la variable inteligencia cualitativa, resultado explicable por el hecho de que la muestra de mujeres delincuentes estaba en prisión. 相似文献
58.
Miguel A. Sastre‐Castillo Marta Peris‐Ortiz Ignacio Danvila‐Del Valle 《Nonprofit management & leadership》2015,25(4):349-369
In recent years, the term social entrepreneur has become increasingly common in academic and business circles. Social entrepreneurs engage in a variety of activities, but always with the intention of solving social problems. Social entrepreneurs are not merely people who perform acts of charity; they have an evident desire to improve social well‐being and develop projects with long‐term vision. The creation of sustainable social value is a key characteristic that differentiates them from well‐meaning individuals who simply engage in charitable works. There are, however, significant gaps in our understanding of social entrepreneurs and few empirical studies on the subject. This present study attempts to identify the characteristics of more socially oriented entrepreneurs, using sociodemographic variables and the theory of universal values toward work. Analysis of a sample of approximately 400 people shows that more than half of entrepreneurial orientation can be explained through the possession of the values of self‐enhancement (with an inverse relationship in this case), self‐transcendence, and conservation. The theory of universal values has proved extraordinarily useful for studying the characteristics of social entrepreneurs. 相似文献
59.
Arnau Monterde Antonio Calleja-López Miguel Aguilera Xabier E. Barandiaran John Postill 《Information, Communication & Society》2015,18(8):930-950
The emergence of network-movements since 2011 has opened the debate around the way in which social media and networked practices make possible innovative forms of collective identity. We briefly review the literature on social movements and ‘collective identity’, and show the tension between different positions stressing either organization or culture, the personal or the collective, aggregative or networking logics. We argue that the 15M (indignados) network-movement in Spain demands conceptual and methodological innovations. Its rapid emergence, endurance, diversity, multifaceted development and adaptive capacity, posit numerous theoretical and methodological challenges. We show how the use of structural and dynamic analysis of interaction networks (in combination with qualitative data) is a valuable tool to track the shape and change of what we term the ‘systemic dimension’ of collective identities in network-movements. In particular, we introduce a novel method for synchrony detection in Facebook activity to identify the distributed, yet integrated, coordinated activity behind collective identities. Applying this analytical strategy to the 15M movement, we show how it displays a specific form of systemic collective identity we call ‘multitudinous identity’, characterized by social transversality and internal heterogeneity, as well as a transient and distributed leadership driven by action initiatives. Our approach attends to the role of distributed interaction and transient leadership at a mesoscale level of organizational dynamics, which may contribute to contemporary discussions of collective identity in network-movements. 相似文献
60.
“In the midst of order, there is chaos; but in the midst of chaos, there is order”, John Gribbin wrote in his book Deep Simplicity (p. 76). In this dialectical spirit, we discuss the generative tension between complexity and simplicity in the theory and practice of management and organization. Complexity theory suggests that the relationship between complex environments and complex organizations advanced by the well-known Ashby’s law, may be reconsidered: only simple organization provides enough space for individual agency to match environmental turbulence in the form of complex organizational responses. We suggest that complex organizing may be paradoxically facilitated by a simple infrastructure, and that the theory of organizations may be viewed as resulting from the dialectical interplay between simplicity and complexity. 相似文献