The Society Model

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Learning in the Society Model

Learning occurs by two processes. First, agents are always being socialized into the societal code of beliefs. We suppose that in every time interval, for every knowledge component in which an agent differs from the code, the agent will adopt the code belief with a certain probability. We call this probability the "socialization rate", or "agent learning rate."

Secondly, the code adapts to the beliefs of agents. However, we suppose that the code only adapts to the beliefs of agents that are more knowledgeable than the code - that is, to agents whose beliefs are more in line with the environment. For each component, the code will adopt the belief of these superior agents with a probability based on the "code learning rate." Details are given in the technical appendix.

We assume that changes in each component of knowledge are independent. Note that improvement in this model never comes directly from imitating reality. Improvement occurs from individuals learning from the code and from the code learning from superior individuals.

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