LLM Social Simulations Are a Promising Research Method 2025 article anthis2025socialsim Authors Jacy Reese Anthis, Ryan Liu, Sean M. Richardson, Austin C. Kozlowski, Bernard Koch, James Evans, Erik Brynjolfsson, Michael Bernstein Venue arXiv preprint arXiv:2504.02234 URL https://arxiv.org/abs/2504.02234