“酒吧问题”——Brian Arthur，1994

少数者博弈模型---MINORITY GAME 

                                              ——张翼成，1997

1) A large number of independent agents participate

    in a market.            N (odd)

2) Each agent has some alternatives in making his decision.                

     A (buy,yes), B (sell,no)

3) The aggregate activity results in a market price,

    which is known to all.      minority side win   

4) Agents use the public price history to make their

    decisions.               

记忆容量与策略——m=2

在t 时刻，每人根据 t时刻的历史，采用他的s 个策略中累计虚分最高的策略的预测作出决定；

决策后，考察决策的收益，并进一步为策略打分

Minority Game

Strategies: 

Adaptive Decision:   Using the strategy  which having the highest accumulated points