The concept of magnetic susceptibility in the Ising model is used to identify the social temperature as the rate of random changes of strategy for a set of agents playing two different strategies.
@article{arxiv.0807.0711,
title = {A note on temperature without energy - a social example},
author = {Krzysztof Kulakowski},
journal= {arXiv preprint arXiv:0807.0711},
year = {2015}
}