We challenge the hypothesis of the efficient frontier portfolios by using network approach. In a small-world network interacting agents decide upon the portfolio selection solely upon past returns. Simulation results indicate that agents are capable of forming the efficient frontier, whereas...

I introduce a simple model for simulating portfolio selection, based on a social network, word-of-mouth communication and unsuspicious and suspicious agents. It has been demonstrated that risk and returns are two decisive determinants in portfolio selection, with risk being highly pronounced. It...

Portfolio selection simulator of social interaction is proposed in this paper. We explained why different investors possess different portfolios in time and why portfolios change with the change of the environment. The developments of the games are path-dependent depending on several factors....

Portfolio selection in this paper is done in an agent-based setting with individuals communicating through the social network. We explained why different individuals possess different portfolios in time and why portfolios change with the change of the environment. The developments of the games...

This paper analyzes the field of investors' decision-making on a multi-asset market. It does it through a simulation games on a social network framework. It has been demonstrated that more stocks there are in the game and more changing alternatives investors have available to choose from,...