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arXiv 1401.4331q-fin.TRcond-mat.stat-mech
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规模的多样性带来优势:少数人博弈的案例

Diversity of scales makes an advantage: The case of the Minority Game

Miroslav Pištěk, Frantisek Slanina

摘要:

我们使用少数人博弈作为一个测试框架的出现在社会经济系统的多样性的问题。对于具有异质性影响的MG,我们表明,通常的代理人的利润的直接概括不适合现实世界中的一些情况。作为一个典型的例子,我们使用的流量公式的MG。考虑到不同长度的车辆,很容易发生其中一条道路被几辆长卡车挤满,另一条道路包含更多的司机,但仍然没有车辆覆盖。大多数司机都在较短的队列中,所以大多数人赢了。为了描述这种情况,我们通过显式地引入依赖于代理人影响的效用函数来推广代理人利润的公式。然后,系统的总利润可能变为正,这取决于效用函数的实际选择。我们研究了几种选择的效用函数,并表明,这种变体的MG可能会变成一个正和游戏。

英文摘要:

We use the Minority Game as a testing frame for the problem of the emergence of diversity in socio-economic systems. For the MG with heterogeneous impacts, we show that the direct generalization of the usual agents' profit does not fit some real-world situations. As a typical example we use the traffic formulation of the MG. Taking into account vehicles of various lengths it can easily happen that one of the roads is crowded by a few long trucks and the other contains more drivers but still is less covered by vehicles. Most drivers are in the shorter queue, so the majority win. To describe such situations, we generalized the formula for agents' profit by explicitly introducing utility function depending on an agent's impact. Then, the overall profit of the system may become positive depending on the actual choice of the utility function. We investigated several choices of the utility function and showed that this variant of the MG may turn into a positive sum game.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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