In this paper we investigate how mutual funds react to the distress of another fund in the same fund family. We test three alternative hypotheses: (1) funds help the distressed fund, (2) funds front-run the distressed fund improving their relative performance in the fund family and, (3) the family coordinates and benefits from front-running the distressed fund. Our results suggest that fund man...

This paper proposes a method allowing an agent to perform in a socially fair way by considering other agents’ preferences. Such a balanced action selection process is based on declarative diagnosis, which enables the removal of contradictions arising as all agents’ preferences are confronted within the deciding agent. Agents can be negatively affected when some of their preferences are not resp...

Networks with dependency links are more vulnerable when facing the attacks. Recent research also has demonstrated that the interdependent groups support the spreading of cooperation. We study the prisoner's dilemma games on spatial networks with dependency links, in which a fraction of individual pairs is selected to depend on each other. The dependency individuals can gain an extra payoff whos...

Zero-determinant (ZD) strategies, as discovered by Press and Dyson, can enforce a linear relationship between a pair of players' scores in the iterated prisoner's dilemma. Particularly, the extortionate ZD strategies can enforce and exploit cooperation, providing a player with a score advantage, and consequently higher scores than those from either mutual cooperation or generous ZD strategies. ...

Here we study the effects of adopting different strategies against different opponent instead of adopting the same strategy against all of them in the prisoner dilemma structured in well-mixed populations. We consider an evolutionary process in which strategies that provide reproductive success are imitated and players replace one of their worst interactions by the new one. We set individuals i...

We study the evolutionary Prisoner's Dilemma game on scale-free networks for different initial distributions. We consider three types of initial distributions for cooperators and defectors: initially random distribution with different frequencies of defectors; intentional organization with defectors initially occupying the most connected nodes with different fractions of defectors; intentional ...

the main purpose followed in this study was to evaluate the role of social capital on organizational learning (ol) of jihad-e-agriculture organization's staffs. the statistical population consisted of all staffs of jihad-e-agriculture organization in kurdistan province (n=150). applying census, a questionnaire was sent to all the members of the study from whom 124 members finally filled in...

The Iriban tradition is a of cleaning irrigation streams (Wangan) sourced from Cenginging springs and believed by the community as form gratitude to God. purpose this study describes procession value mutual cooperation in well efforts preserve Lerep Village, West Ungaran District, Semarang Regency. This research uses qualitative approach with data collection methods, namely observation, intervi...

Reciprocity stabilizes cooperation from the level of microbes all the way up to humans interacting in small groups, but does reciprocity also underlie stable cooperation between larger human agglomerations, such as nation states? Famously, evolutionary models show that reciprocity could emerge as a widespread strategy for achieving international cooperation. However, existing studies have only ...