scholarly journals Clustered networks protect cooperation against catastrophic collapse

2018 ◽  
Vol 6 (3) ◽  
pp. 281-318
Author(s):  
GWEN SPENCER
Keyword(s):  
Critical Level ◽  
Computational Study ◽  
Economic Recession ◽  
Network Clustering ◽  
Modeling Framework ◽  
Structured Population ◽  
Human Experiments ◽  
The Face ◽  
Spatially Structured Population ◽  
New Perspective

AbstractAssuming a society of conditional cooperators (or moody conditional cooperators), this computational study proposes a new perspective on the structural advantage of social network clustering. Previous work focused on how clustered structure might encourage initialoutbreaks of cooperationor defend against invasion by a few defectors. Instead, we explore the ability of a societal structure to retain cooperative norms in the face of widespread disturbances. Such disturbances may abstractly describe hardships like famine and economic recession, or the random spatial placement of a substantial numbers ofpure defectors(orround-1 defectors) among a spatially structured population of players in a laboratory game, etc.As links in tightly clustered societies are reallocated to distant contacts, we observe that a society becomes increasingly susceptible tocatastrophic cascades of defection: mutually-beneficial cooperative norms can be destroyed completely by modest shocks of defection. In contrast, networks with higher clustering coefficients can withstand larger shocks of defection before being forced to catastrophically low levels of cooperation. We observe a remarkably linearprotective effect of clusteringcoefficient that becomes active above acritical level of clustering. Notably, both the critical level and the slope of this dependence is higher for decision-rule parameterizations that correspond to highercosts of cooperation. Our modeling framework provides a simple way to reinterpret the counter-intuitive and widely cited human experiments of Suri and Watts (2011) while also affirming the classical intuition that network clustering and higher levels of cooperation should be positively associated.

scholarly journals A general modeling framework for describing spatially structured population dynamics

2017 ◽  
Vol 8 (1) ◽  
pp. 493-508 ◽  
Author(s):  
Christine Sample ◽  
John M. Fryxell ◽  
Joanna A. Bieri ◽  
Paula Federico ◽  
Julia E. Earl ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Modeling Framework ◽  
Structured Population ◽  
Structured Population Dynamics ◽  
Spatially Structured Population

Wake Flow of Single and Multiple Yawed Cylinders

2004 ◽  
Vol 126 (5) ◽  
pp. 861-870 ◽  
Author(s):  
A. Thakur ◽  
X. Liu ◽  
J. S. Marshall
Keyword(s):  
Computational Study ◽  
Three Dimensional ◽  
Side Wall ◽  
Wake Flow ◽  
Upstream Region ◽  
Two Dimensional ◽  
Cylinder Wake ◽  
Dimensional Approximation ◽  
The Face ◽  
Drag And Lift

An experimental and computational study is performed of the wake flow behind a single yawed cylinder and a pair of parallel yawed cylinders placed in tandem. The experiments are performed for a yawed cylinder and a pair of yawed cylinders towed in a tank. Laser-induced fluorescence is used for flow visualization and particle-image velocimetry is used for quantitative velocity and vorticity measurement. Computations are performed using a second-order accurate block-structured finite-volume method with periodic boundary conditions along the cylinder axis. Results are applied to assess the applicability of a quasi-two-dimensional approximation, which assumes that the flow field is the same for any slice of the flow over the cylinder cross section. For a single cylinder, it is found that the cylinder wake vortices approach a quasi-two-dimensional state away from the cylinder upstream end for all cases examined (in which the cylinder yaw angle covers the range 0⩽ϕ⩽60°). Within the upstream region, the vortex orientation is found to be influenced by the tank side-wall boundary condition relative to the cylinder. For the case of two parallel yawed cylinders, vortices shed from the upstream cylinder are found to remain nearly quasi-two-dimensional as they are advected back and reach within about a cylinder diameter from the face of the downstream cylinder. As the vortices advect closer to the cylinder, the vortex cores become highly deformed and wrap around the downstream cylinder face. Three-dimensional perturbations of the upstream vortices are amplified as the vortices impact upon the downstream cylinder, such that during the final stages of vortex impact the quasi-two-dimensional nature of the flow breaks down and the vorticity field for the impacting vortices acquire significant three-dimensional perturbations. Quasi-two-dimensional and fully three-dimensional computational results are compared to assess the accuracy of the quasi-two-dimensional approximation in prediction of drag and lift coefficients of the cylinders.

“If I have to clean, I clean my own shop”: Migrant entrepreneurship as a form of emplacement in times of crisis: The example of Italy

Ethnicities ◽  
2018 ◽  
Vol 19 (2) ◽  
pp. 414-432 ◽  
Author(s):  
Claudia Lintner
Keyword(s):  
Social Interactions ◽  
Work Performance ◽  
Economic Recession ◽  
Research Approach ◽  
Structured Interviews ◽  
Opportunity Structures ◽  
Immigration Laws ◽  
Migrant Entrepreneurship ◽  
New Perspective ◽  
The One

This article analyses the relation between European economic crisis and immigration. It does so by analysing the establishment of migrants’ entrepreneurship activities in Italy, and by looking at how these activities unravel subjects’ agency in confronting constraining socioeconomic conditions and restrictive immigration laws. In this perspective, entrepreneurship should be understood as a possibility for transforming a person’s own incorporated cultural capital into a resource and, consequently, into an opportunity for self-created work performance. Interpreting entrepreneurship as a personal response of migrants to the economic recession offers a new perspective in the existing literature on migrant entrepreneurship. Crisis, in this paper, is not seen as an abstract and supernatural phenomenon leading and controlling the capacity of individuals to act, but is understood as a constructed set of meanings comprising social interactions and relationships and consolidated within public discourses. This study is based on a qualitative-explorative research approach and was carried out in South Tyrol, Italy. For the data collection, different qualitative methods were used: narrative interviews, informal discussions and semi-structured interviews. Data analysis was based on the coding processes described within the Grounded Theory. As the results show, crisis as such represents, on the one hand, a critical moment of transition or transformation of normality and the constituted ways of acting and thinking and, on the other hand, it is perceived as a new opportunity to change individual behaviour and to initiate innovative counter-strategies that will maintain a person’s capacity to act even in critical personal and structural situations. Nevertheless, showing resilience, which is powerful and leads to change, depends not only on personal motivational forces but also to given opportunity structures.

scholarly journals Overseas Chinese Returnees’ Swindler Syndrome and Their Entrepreneurial Education Under Psychological Resilience

2022 ◽  
Vol 12 ◽  
Author(s):  
Can Xiao ◽  
Xiaoya Wang
Keyword(s):  
Positive Impact ◽  
Entrepreneurship Education ◽  
Entrepreneurial Intention ◽  
Psychological Resilience ◽  
Overseas Chinese ◽  
Self Awareness ◽  
Studying Abroad ◽  
Depth Analysis ◽  
The Face ◽  
New Perspective

The study aims to explore the entrepreneurship education of overseas Chinese returnees with the swindler syndrome through psychological resilience. First, a questionnaire survey is conducted to analyze the current situations of entrepreneurship education of overseas Chinses returnees and college students, and it is found that the entrepreneurship education received by overseas Chinese returnees is more advanced and perfect than that by domestic students, which makes overseas Chinese returnees have the ability to solve the problems in the process of entrepreneurship, realizing their entrepreneurial dream. However, the emergence of swindler syndrome changes the self-awareness and psychology of these returnees, which is improved through appropriate entrepreneurship education under resilience analysis. The results show that entrepreneurial resilience and entrepreneurial optimism covered by psychological resilience have a significant positive impact on entrepreneurial intention, indicating that entrepreneurial resilience and entrepreneurial optimism can enhance individual’s entrepreneurial intention. The scores of the subjects with the experience of studying abroad are higher than those without such experience, indicating that overseas Chinese returnees have stronger resilience and more optimistic attitudes in the face of difficulties and setbacks, which provides a new perspective for in-depth analysis of Chinese returnees’ entrepreneurship education and promotes the development of entrepreneurship education in colleges and universities in China.

scholarly journals Strategi Filosofis Masyarakat Jepang Dalam Mengatasi Dilema Budaya Kerja Di Masa Pandemi Covid-19

KIRYOKU ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 159-164
Author(s):  
Iriyanto Widisuseno
Keyword(s):  
Japanese Society ◽  
Economic Recession ◽  
Developed Countries ◽  
Work Culture ◽  
Remote Work ◽  
Japanese People ◽  
Social Phenomena ◽  
The People ◽  
The Face ◽  
Normative Rule

For the Japanese people, the remote work policy which aims to break the chain of the spread of the Corona-19 Virus is a cultural dilemma, because it clashes with the work culture of the people who have a strong work ethic. But in fact, Japan's economic recession rate is not as bad as other developed countries, such as America, China, and Korea. The death rate from Covid-19 is very low. Currently, Japan has started to return to the normal national economy. The mystery behind it all in Japan is the factor of superior immunity or cultural superiority. The assumption is, if because of the cultural superiority factor, what are the basic values that underlie the formation of behavior and culture of Japanese society. This philosophical qualitative study aims to examine philosophical strategies: what are the basic values that underlie the way Japanese people think and behave in the face of the Covid-19 pandemic, how to properly solve problems (epistemology), and what normative rules are used to give direction to achieve goals (axiology). Through philosophical descriptive methods, this research can reveal the philosophical values (ontological, epistemological, axiological) behind social phenomena in Japanese society. The results of the study show that Japanese people hold firmly to the value of discipline as an ontological footing, the samurai is used as a way to solve problems, the value of harmony as a normative rule that gives direction to the achievement of goals. The benefits of this research provide enlightenment for the community about understanding the basic problems in society that are often neglected, while many people only focus on the surface of the problem that causes failure to understand.

scholarly journals Financing to the mexican productive sector in the context of the pandemic by COVID-19

2020 ◽  
pp. 12-20
Author(s):  
Javier Lapa-Guzmán ◽  
Juan Carlos Baltazar-Escalona ◽  
Eduardo Rosas-Rojas
Keyword(s):  
Statistical Analysis ◽  
Critical Period ◽  
Economic Recession ◽  
The Other ◽  
Financing Structure ◽  
Financing Channels ◽  
The Face ◽  
Great Relevance ◽  
The Government ◽  
The One

The Mexican economy has a fragile and inefficient financing structure for the productive sector; which acquires great relevance in the face of the imminent economic recession that will follow the most critical period of the Covid-19 pandemic. In this paper, the evolution of the different financing channels is analyzed, in order to know, on the one hand, the composition of the financing of companies; and on the other hand, identify the type of company that presents the highest degree of vulnerability and that, therefore, the government should prioritize. For this, a statistical analysis is carried out both of the composition of the financing of the companies; as well as the characteristics of these companies and their relevance in the economic dynamics of the country.

The Paradox Perspective and the Dialectics of Contradictions Research

2021 ◽  
pp. 160-185
Author(s):  
Timothy J. Hargrave
Keyword(s):  
Organizational Effectiveness ◽  
Dialectical Approach ◽  
Dialectical Perspective ◽  
The Face ◽  
Dialectical Process ◽  
New Perspective ◽  
Further Development ◽  
Conceptual Core

This chapter compares paradox and dialectical perspectives on managing contradictions and engages the debate on the further development of the paradox perspective. This perspective provides guidance to managers on how they can increase organizational effectiveness in the face of seemingly irreconcilable tensions. It presents contradictions as persistent, stable, separable, and controllable. The dialectical perspective, in contrast, depicts contradictions as difficult to disentangle from their contexts, continuously changing, and transformed through oppositional processes. While paradox scholars have called for incorporation of dialectics into the paradox perspective, they have done so in a way that preserves rather than challenges or expands the conceptual core of the paradox perspective. This chapter advocates that scholars take a dialectical approach and experiment in establishing a new perspective that sublates the paradox and dialectical perspectives. This contradictions perspective would situate the experience of paradox as one moment in time within a never-ending dialectical process. I briefly discuss the possible outline of this perspective and highlight articles that have moved in its direction.

Dimensions of Good Governance

2015 ◽  
pp. 176-190
Author(s):  
Chhanda Mandal ◽  
Anita Chattopadhyay Gupta
Keyword(s):  
Good Governance ◽  
Economic Recession ◽  
The Great Recession ◽  
Income Differentials ◽  
Governance Indicators ◽  
The World Bank ◽  
The World ◽  
The Face ◽  
Resilience Factors ◽  
The Relationship

Effectiveness of governance is realised through its responses to any financial crisis. This was put in question as the Great Recession affected the core economies severely. This study empirically investigated the relationship between accountability, corruption, and government effectiveness during the period 2002-2012. Our main purpose was to highlight the sizable gap that exists in the performance literature on cross-country studies especially against the changing economic world scenario. A comparison of the World Bank governance indicators between three countries chosen on the basis of income differentials and hence different adaptive characteristics of each country to the economic recession has been studied. The behavior of the governance indicators in the context of the world has been examined against the background of the shock that the depression had brought and the resilience factors embedded within the indicators in the face of the shocks were studied.

In the margins of Byzantium? Some icons in Michael Psellos

1992 ◽  
Vol 16 ◽  
pp. 21-32 ◽  
Author(s):  
Anthony Cutler ◽  
Robert Browning
Keyword(s):  
Byzantine Art ◽  
Official Position ◽  
Works Of Art ◽  
The Face ◽  
New Perspective ◽  
Church Councils ◽  
Legal Opinion

In the face of a supposed dearth of recorded responses to icons, historians of Byzantine art commonly infer these either from characteristics that they suppose to inhere in works of art themselves, or transfer to the personal and practical realm such theoretical attitudes as are proclaimed in the proceedings of church councils and similar documents. These methods of argumentation give rise to assumptions that (i) aesthetic reactions to images were unimportant or at least subordinate to attitudes born of piety, and (ii) artists used older works as models and the value of their artefacts was understood to be directly proportional to the fidelity of their copies to the ‘prototype’. Views of this sort can indeed be supported by texts that set out a variety of orthodox positions ranging from bodies of legal opinion to anecdotal accounts of devotion to icons. But to suppose that such readings represent immutable standards is to take part of the picture for the whole. The study of what seem at first sight to be aberrant attitudes can lend a new perspective on behaviour that is often treated as normative. Artists’ ‘deviations’, and highly emotive and even criminal reactions to their work, are still marginal to our perceptions of Byzantium formed by texts that present one or another official position, even while we are aware that styles of painting (as of writing) varied from one individual to another and that private passions and crimes flourished in this society as in any other.

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