Culture model —— Model thinking lecture note (7)

FrostMonarch

于 2018-07-27 10:26:32 发布

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本文通过构建一个模拟社会中个体间互动的模型来探讨不同文化为何会产生差异。假设在一个方格中每个人都有特定的特征，领导者与追随者之间的互动会导致特质的变化。通过一致性假设和马尔科夫过程的应用，即使微小的初始差异也可能导致群体内部出现显著的文化差异。

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Why cultures are different?

Assume that we have a n*n square. Each block represent a person.

Assumption 1 : we have several features to coordinate each feature has a trait. a trait looks like {1,2,2,2,2,2}

Assumption 2 : Some people are leaders while the others are follower. Each person may have a probability to interact which depends on how similar are their traits. Follower may change one number in the trait while they interact with a leader.

Finally we can see some people look more similar (their trait look similar) while other people have a much more deeper boundaries to interact.

What's the difference between coordination game & standing ovation?

The payoff is difference. In coordination game, if people don't coordinate with others, that will lead to a horrible result. While in standing ovation the payoff is small, you may not coordinate with others.

Culture may get suboptimal cuz ohter people choose to do it.

Why can we see the difference within a group

After we adding consistency which means { 1 , 2 ,2} may become {2 , 2 ,2} and using markov process, a little error term may lead to a huge difference inside the group.