The emergence of altruism as a social norm

Pereda, Maria and Branas-Garza, Pablo and Rodriguez-Lara, Ismael and Sanchez, Angel (2017) The emergence of altruism as a social norm. Scientific Reports, 7 . ISSN 2045-2322 (Accepted/In press)

[img]
Preview
PDF - Published version (with publisher's formatting)
Available under License Creative Commons Attribution.

Download (4MB) | Preview
[img]
Preview
PDF - Final accepted version (with author's formatting)
Download (1MB) | Preview

Abstract

Expectations, exerting influence through social norms, are a very strong candidate to explain how complex societies function. In the Dictator game (DG), people expect generous behavior from others even when they cannot enforce any sharing of the pie. Here we assume that people donate following their expectations, and that they update their expectation after playing a DG by reinforcement learning to construct a model that explains the main experimental results in the DG. Full agreement with the experimental results is reached when some degree of mismatch between expectations and donations is added into the model. These results are robust against the presence of envious agents, but affected if we introduce selfish agents that do not update their expectations. Our results point to social norms being on the basis of the generous behavior observed in the DG and also to the wide applicability of reinforcement learning to explain many strategic interactions.

Item Type: Article
Research Areas: A. > Business School > Economics
Item ID: 22152
Useful Links:
Depositing User: Pablo Branas Garza
Date Deposited: 28 Jun 2017 15:23
Last Modified: 02 Oct 2017 15:24
URI: http://eprints.mdx.ac.uk/id/eprint/22152

Actions (login required)

Edit Item Edit Item

Full text downloads (NB count will be zero if no full text documents are attached to the record)

Downloads per month over the past year