Experimental Games and Social Decision Making

2021 ◽  
Vol 72 (1) ◽  
pp. 415-438
Author(s):  
Eric van Dijk ◽  
Carsten K.W. De Dreu

Experimental games model situations in which the future outcomes of individuals and groups depend on their own choices and on those of other (groups of) individuals. Games are a powerful tool to identify the neural and psychological mechanisms underlying interpersonal and group cooperation and coordination. Here we discuss recent developments in how experimental games are used and adapted, with an increased focus on repeated interactions, partner control through sanctioning, and partner (de)selection for future interactions. Important advances have been made in uncovering the neurobiological underpinnings of key factors involved in cooperation and coordination, including social preferences, cooperative beliefs, (emotion) signaling, and, in particular, reputations and (in)direct reciprocity. Emerging trends at the cross-sections of psychology, economics, and the neurosciences include an increased focus on group heterogeneities, intergroup polarization and conflict, cross-cultural differences in cooperation and norm enforcement, and neurocomputational modeling of the formation and updating of social preferences and beliefs.

Author(s):  
Minu Mathew ◽  
Chandra Sekhar Rout

This review details the fundamentals, working principles and recent developments of Schottky junctions based on 2D materials to emphasize their improved gas sensing properties including low working temperature, high sensitivity, and selectivity.


2004 ◽  
Vol 01 (04) ◽  
pp. 423-441 ◽  
Author(s):  
GIAMPIERO ESPOSITO ◽  
DIEGO N. PELLICCIA ◽  
FRANCESCO ZACCARIA

The functional-integral quantization of non-Abelian gauge theories is affected by the Gribov problem at non-perturbative level: the requirement of preserving the supplementary conditions under gauge transformations leads to a nonlinear differential equation, and the various solutions of such a nonlinear equation represent different gauge configurations known as Gribov copies. Their occurrence (lack of global cross-sections from the point of view of differential geometry) is called Gribov ambiguity, and is here presented within the framework of a global approach to quantum field theory. We first give a simple (standard) example for the SU(2) group and spherically symmetric potentials, then we discuss this phenomenon in general relativity, and recent developments, including lattice calculations.


2017 ◽  
Vol 25 ◽  
Author(s):  
Lesley Autumn Willard

Historically, fan scholars have focused on conducting deep dives into singular cases and revealing trends by comparing cross sections of those cases. While there is undeniable value in conducting close analyses of such instances, the reliance on this method can limit our assessment of long-running trends. By supplementing—or, more productively, combining—specific case studies with diachronic perspectives, we can better situate, contextualize, and trace emerging trends like the evolution of fan/producer dynamics. To model this approach, I analyze 4 years' worth of fan-targeted promotional campaigns on the official Teen Wolf (2011–) Tumblr. The activities—fannish and/or promotional—of all participants in a shared ecological system like Tumblr are significant. They continuously construct, deconstruct, nuance, and challenge the ever-evolving context of fandom and fan/producer dynamics. Supplementing a close analysis of one of Teen Wolf's recent promotional campaigns—the commissioned #TeenWolfExhibit—with a diachronic perspective addresses the ever-evolving ecology of media fandom and traces the evolution of MTV's fannish literacy from 2011 to 2015. The #TeenWolfExhibit reproduces and reflects all the promotional successes, failures, and course corrections that predate it.


Author(s):  
Selcen Kılıçaslan Gökoğlu ◽  
Engin Bağış Öztürk

In the last two decades, workplace deviance becomes one of the most important topics to understand negative behaviors at work. However, many of the studies that examine deviance take a universal perspective and undermine cross-cultural differences. To address this gap, this chapter focuses on cross-cultural differences and its relationship with deviant workplace behaviors. The authors claim that cross-cultural differences can play an important role as an antecedent and/or moderator variable in influencing deviant behaviors. In order to discuss these effects, they first summarize recent developments in individualism-collectivism, tightness-looseness, and honor cultures. Based on their interpretations, target-oriented deviance might be highly contextualized in collectivist cultures, form of deviance and contents of deviance could be different from honor to dignity cultures. In addition, deviant behaviors as responses to specific events might differ whether a person belongs in a tight culture or not. The implications of our arguments and future research directions are discussed.


2005 ◽  
Vol 28 (6) ◽  
pp. 822-823 ◽  
Author(s):  
Simon Gächter ◽  
Benedikt Herrmann ◽  
Christian Thöni

We argue that the lack of large cross-cultural differences in many games with student subjects from developed countries may be due to the nature of the games studied. These games tap primarily basic psychological reactions, like fairness and reciprocity. Once we look at norm-enforcement, in particular punishment, we find large differences even among culturally rather homogeneous student groups from developed countries.


2018 ◽  
Vol 9 (2) ◽  
pp. 154-169
Author(s):  
Jonas Knetsch

Abstract The liberalisation of the coach, air and rail transport market sheds new light on a relatively unexplored field of comparative tort law: the rules governing the liability of transportation companies for accidents involving third parties. Through an assessment of recent developments under French and German Law, this article reflects on the emerging trends of those tort rules, induced or highlighted by the market opening process. The existing strict liability regimes for railway and coach carriers, already subject to a significant tightening process, raise new questions as to the exact circle of persons liable for injuries, since the market liberalisation goes hand in hand with the unbundling of infrastructure and operations.


Catalysts ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 680 ◽  
Author(s):  
Sakar ◽  
Prakash ◽  
Do

Photocatalysis is a multifunctional phenomenon that can be employed for energy applications such as H2 production, CO2 reduction into fuels, and environmental applications such as pollutant degradations, antibacterial disinfection, etc. In this direction, it is not an exaggerated fact that TiO2 is blooming in the field of photocatalysis, which is largely explored for various photocatalytic applications. The deeper understanding of TiO2 photocatalysis has led to the design of new photocatalytic materials with multiple functionalities. Accordingly, this paper exclusively reviews the recent developments in the modification of TiO2 photocatalyst towards the understanding of its photocatalytic mechanisms. These modifications generally involve the physical and chemical changes in TiO2 such as anisotropic structuring and integration with other metal oxides, plasmonic materials, carbon-based materials, etc. Such modifications essentially lead to the changes in the energy structure of TiO2 that largely boosts up the photocatalytic process via enhancing the band structure alignments, visible light absorption, carrier separation, and transportation in the system. For instance, the ability to align the band structure in TiO2 makes it suitable for multiple photocatalytic processes such as degradation of various pollutants, H2 production, CO2 conversion, etc. For these reasons, TiO2 can be realized as a prototypical photocatalyst, which paves ways to develop new photocatalytic materials in the field. In this context, this review paper sheds light into the emerging trends in TiO2 in terms of its modifications towards multifunctional photocatalytic applications.


2012 ◽  
Vol 2012 ◽  
pp. 1-35 ◽  
Author(s):  
Jorge G. Morfín ◽  
Juan Nieves ◽  
Jan T. Sobczyk

Recent experimental results and developments in the theoretical treatment of neutrino-nucleus interactions in the energy range of 1–10 GeV are discussed. Difficulties in extracting neutrino-nucleon cross sections from neutrino-nucleus scattering data are explained and significance of understanding nuclear effects for neutrino oscillation experiments is stressed. Detailed discussions of the status of two-body current contribution in the kinematic region dominated by quasielastic scattering and specific features of partonic nuclear effects in weak DIS scattering are presented.


2015 ◽  
Vol 112 (52) ◽  
pp. 16012-16017 ◽  
Author(s):  
Steve W. C. Chang ◽  
Nicholas A. Fagan ◽  
Koji Toda ◽  
Amanda V. Utevsky ◽  
John M. Pearson ◽  
...  

Social decisions require evaluation of costs and benefits to oneself and others. Long associated with emotion and vigilance, the amygdala has recently been implicated in both decision-making and social behavior. The amygdala signals reward and punishment, as well as facial expressions and the gaze of others. Amygdala damage impairs social interactions, and the social neuropeptide oxytocin (OT) influences human social decisions, in part, by altering amygdala function. Here we show in monkeys playing a modified dictator game, in which one individual can donate or withhold rewards from another, that basolateral amygdala (BLA) neurons signaled social preferences both across trials and across days. BLA neurons mirrored the value of rewards delivered to self and others when monkeys were free to choose but not when the computer made choices for them. We also found that focal infusion of OT unilaterally into BLA weakly but significantly increased both the frequency of prosocial decisions and attention to recipients for context-specific prosocial decisions, endorsing the hypothesis that OT regulates social behavior, in part, via amygdala neuromodulation. Our findings demonstrate both neurophysiological and neuroendocrinological connections between primate amygdala and social decisions.


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