scholarly journals Ignorance Is Bliss: An Experimental Study of the Use of Ambiguity and Vagueness in the Coordination Games with Asymmetric Payoffs

2012 ◽  
Vol 4 (2) ◽  
pp. 77-103 ◽  
Author(s):  
Marina Agranov ◽  
Andrew Schotter

We consider a game where one player, the Announcer, has to communicate the value of a payoff relevant state of the world to a set of players who play a coordination game with multiple equilibria. While the Announcer and the players agree that coordination is desirable, since the payoffs of the players at the equilibria are unequal, they disagree as to which equilibrium is best. We demonstrate experimentally that in such coordination games, in order to mask the asymmetry of equilibrium payoffs, it may be advantageous for a utilitarian benevolent Announcer to communicate in an ambiguous or vague manner. (JEL C71, D81, D83)

2021 ◽  
Author(s):  
Willemien Kets ◽  
Wouter Kager ◽  
Alvaro Sandroni

The value of a game is the payoff a player can expect (ex ante) from playing the game. Understanding how the value changes with economic primitives is critical for policy design and welfare. However, for games with multiple equilibria, the value is difficult to determine. We therefore develop a new theory of the value of coordination games. The theory delivers testable comparative statics on the value and delivers novel insights relevant to policy design. For example, policies that shift behavior in the desired direction can make everyone worse off, and policies that increase everyone's payoffs can reduce welfare.


Author(s):  
Andrea Lorenzo Capussela

This book offers an interpretation of Italy’s decline, which began two decades before the Great Recession. It argues that its deeper roots lie in the political economy of growth. This interpretation is illustrated through a discussion of Italy’s political and economic history since its unification, in 1861. The emphasis is placed on the country’s convergence to the productivity frontier and TFP performance, and on the evolution of its social order and institutions. The lens through which its history is reviewed, to illuminate the origins and evolution of the current constraints to growth, is drawn from institutional economics and Schumpeterian growth theory. It is exemplified by analysing two alternative reactions to the insufficient provision of public goods: an opportunistic one—employing tax evasion, corruption, or clientelism as means to appropriate private goods—and one based on enforcing political accountability. From the perspective of ordinary citizens and firms such social dilemmas can typically be modelled as coordination games, which have multiple equilibria. Self-interested rationality can thus lead to a spiral, in which several mutually reinforcing vicious circles lead society onto an inefficient equilibrium characterized by low political accountability and weak rule of law. The book follows the gradual setting in of this spiral, despite an ambitious attempt at institutional reform, in 1962–4, and its resumption after a severe endogenous shock, in 1992–4. It concludes that innovative ideas can overcome the constraints posed by that spiral, and ease the country’s shift onto a fairer and more efficient equilibrium.


1930 ◽  
Vol 26 (1) ◽  
pp. 100-100
Author(s):  
Editorial Board

Bibliography and reviews. Until now, Russian literature has been extremely poor in original works devoted to the issues of medical and sanitary services for gas poisoned persons. Most of the available books and brochures (X lopin, Blinchikov, etc.) reflected mainly the experience of the World War and were somewhat outdated, since in the years following the war, the issues of gas poisoning were subjected to careful experimental study in all countries, and many sides cases were presented from completely new perspectives. The same is the case with translated literature, among which you can count only a few brochures devoted to the issues of pathology and the clinic of gas poisoning.


KINESTETIK ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 245-255
Author(s):  
Veramyta Maria Martha Flora Babang ◽  
Maria Andriani Barek Ladjar ◽  
Ronald Dwi Ardian Fufu

Starting from the spread of viruses Covid 19 that swept across the world in particular in Indonesia, bringing the idea to create research that contribute in dealing with viruses Covid 19. This study aims to determine the effect of endurance exercise on the body's defenses to prevent transmission of the virus covid 19 for student penjaskesrek Undana. This research is an experimental study of Quasi-Experimental Designs by using Nonequivalent Comparison Group Design which compares the effect of endurance training on the two levels of physical fitness categories of Penjaskesrek students, those who have very Low and Low categories.Samples were 12 female students from Penjaskesrek Undana in semester 2, 4 and 6, where 6 people were in the less physical fitness category, and 6 in the physical fitness category were very Low.The findings of this study include; 1) In the group of physical fitness Low are Effect of Exercise Endurance Resilience Body face Virus Covid 19 on the students Penjaskesrek Undana significantly, 2) In the group of physical fitness is very Low are Effect of Exercise Endurance Resilience Body face Virus Covid 19 on the students Penjaskesrek Undana significantly.So, the conclusion is that endurance exercises are more effective in increasing endurance to deal with the Covid 19 virus.


2014 ◽  
Vol 31 ◽  
pp. 1460305
Author(s):  
Xiao-Kang Zhou ◽  

Based on 2.92 fb-1 of e+e- collision data collected with the BESIII detector at [Formula: see text] GeV, we measured the asymmetry [Formula: see text] of the branching fractions of DCP± → K-π+ (DCP± are the CP-odd and CP-even eigenstates) to be [Formula: see text]. [Formula: see text] is used to extract the strong phase difference δKπ between the doubly Cabibbo-suppressed process [Formula: see text] and Cabibbo-favored D0 → K-π+. By taking inputs of other parameters in world measurements, we obtain cos δKπ = 1.03 ± 0.12 ± 0.04 ± 0.01. This is the most accurate result of cos δKπ to date and can improve the world constrains on the mixing parameters and on γ/ϕ3 in the CKM matrix.


2021 ◽  
Vol 15 (11) ◽  
pp. 2945-2947
Author(s):  
Ali Faheem ◽  
Misbah-ul- Qamar ◽  
Saveela Sadaqat ◽  
Muhammad Akram ◽  
Rizwan Masud ◽  
...  

Background: The Covid-19 pandemic has wreaked havoc throughout the world, with 150 million cases to date and over 3 million lives claimed worldwide. Aim: To explored the difference in levels of SaO2 of COVID-19 positive patients with and without COPD. Study design: Experimental Study. Methodology: From May2020 to 2021 patients admitted at Aziz Bhatti Shaheed hospital were included in this studies. COVID-19 was confirmed by RT-PCR.COPD was confirmed by using GOLD standard of diagnostic criteria. SaO2 was measured by using pulse oximeter and confirmed by blood samples measurement of SaO2. Statistical analysis: SPSS version 22 was used for data analysis. Paired sample t test was performed to evaluate the hypoxia levels between three pairs among the time distribution of 1st, 3rd, and 6th, day. Results: Levels of SaO2 were statistically significant between COVID-19 positive patients and COVID-19 positive patients with COPD. We calculated the levels of SaO2 at day1, 3rd, and 6th day and results were significant to show that COPD might be having some protective effect against hypoxia and that might be due to use of medications or adaptation of pulmonary cells. Conclusion: It was concluded that levels of SaO2 was significantly reduced in COVID-19 patients without COPD in comparison to patients without COPD. Keywords: COVID-19, COPD and SaO2.


Author(s):  
Takashi Yajima ◽  
Kei-ichi Imamoto ◽  
Chizuru Kiyohara ◽  
Mikako Yamada

There are many valuable wooden buildings in the world, because timber has been used all over the world as a building material for a long time. However, there is an issue that timber deteriorates due to various factors. Therefore, in order to preserve these valuable wooden buildings, it is necessary to appropriately repair or reinforce treatment. One of the treatments is the resin filling method. In this method, filling the resin in order to restore the strength into an internal cavity caused by deterioration. It has become clear that it is possible to recover the strength using this method, however, we are still conducting construction based on the rule of thumb. Therefore, authors examined the resin characteristics in order to inject the resin in stable manner and ensure strength recovery. Authors focused on deteriorated timber due to termites, because Japan has a very high amount of such type of timber. Authors reports the following four aspects of the characteristics of resin filling into timber. 1. The Area velocity is determined by the injection pressure, width of the gap, and viscosity of the resin. 2. The resin spreads concentrically in the gap of wood, but there is no regularity in the random gap like deteriorated timber due to termites. 3. Authors proposed a new coefficient for the application, of a theoretical formula to deteriorated timber due to termites. 4. Authors proposed a flowchart of resin filling method to perform stable construction.


2020 ◽  
pp. 027614672096022
Author(s):  
Marcus Wilcox Hemais ◽  
Rafaela Barbosa Ferreira dos Santos

From a decolonial perspective, the present study analyzes how and why Eurocentric consumerism was adopted by Proteste, a Brazilian consumerist organization that is associated with Euroconsumers, a European consumer defense organization. Marketing literature scarcely discusses decolonial issues related to consumerism, resulting in a limited understanding of how Eurocentric consumerist organizations influence consumerism in the Global South, and in Brazil. Based on interviews with current and former Proteste employees and on secondary data, the analysis shows how Proteste deals with the hierarchy created inside Euroconsumers, positioning it at the lower part of this structure, as well as how it adopts Eurocentric universalist consumerist knowledge, which does not necessarily contribute to solving Proteste’s consumer problems. By ignoring such decolonial issues, marketing perpetuates a partial view of consumerism, which accentuates the asymmetry of power between the Eurocentric world and the rest of the world, rather than foster relations between companies and consumers.


2018 ◽  
Vol 60 (2) ◽  
pp. 751-799 ◽  
Author(s):  
Christos A. Ioannou ◽  
Miltiadis Makris

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