Social finance as cultural evolution, transmission bias, and market dynamics

Authors Akcay, Hirshleifer
Journal Proceedings of the National Academy of Sciences
Year 2021
Type Published Paper | Literature Review Paper
Abstract The thoughts and behaviors of financial market participants depend upon adopted cultural traits, including information signals, beliefs, strategies, and folk economic models. Financial traits compete to survive in the human population and are modified in the process of being transmitted from one agent to another. These cultural evolutionary processes shape market outcomes, which in turn feed back into the success of competing traits. This evolutionary system is studied in an emerging paradigm, social finance. In this paradigm, social transmission biases determine the evolution of financial traits in the investor population. It considers an enriched set of cultural traits, both selection on traits and mutation pressure, and market equilibrium at different frequencies. Other key ingredients of the paradigm include psychological bias, social network structure, information asymmetries, and institutional environment.
Keywords Evolutionary finance, cultural evolution, social interaction, behavioral economics, social finance
URL https://www.pnas.org/doi/10.1073/pnas.2015568118
Tags Asset Pricing, Trading Volume and Market Efficiency  |   Consumer Decisions  |   Evolutionary Finance  |   Financing- and Investment Decisions (Individual)  |   Propagation of Noise / Undesirable Outcomes  |   Social Network Structure  |   Social Transmission Biases  |   Theory