Nonlinear Sciences – Adaptation and Self-Organizing Systems
Scientific paper
2010-09-18
Nonlinear Sciences
Adaptation and Self-Organizing Systems
4 Figures, Keyword: evolutionary game theory, experimental economics, spiral pattern, mixed equilibrium, lattice vector field,
Scientific paper
With evolutionary game theory, mathematicians, physicists and theoretical biologists usually show us beautiful figures of population dynamic patterns. 2x2 game (matching pennies game) is one of the classical cases. In this letter, we report our finding that, there exists a dynamical pattern, called as social spiral, in human subjects 2x2 experiment data. In a flow/velocity vector field method, we explore the data in the discrete lattices of the macro-level social strategy space in the games, and then above spiral pattern emergent. This finding hints that, there exists a macro-level order beyond the stochastic process in micro-level. We notice that, the vector pattern provides an interesting way to conceal evolutionary game theory models and experimental economics data. This lattice vector field method provides a novel way for models evaluating and experiment designing.
Wang Zhijian
Xu Bin
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