Luck, skill, and depth of competition in games and social hierarchies

Fuente: arXiv
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Hauptverfasser: Jerdee, Maximilian, Newman, M. E. J.
Format: Preprint
Veröffentlicht: 2023
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author Jerdee, Maximilian
Newman, M. E. J.
author_facet Jerdee, Maximilian
Newman, M. E. J.
contents Patterns of wins and losses in pairwise contests, such as occur in sports and games, consumer research and paired comparison studies, and human and animal social hierarchies, are commonly analyzed using probabilistic models that allow one to quantify the strength of competitors or predict the outcome of future contests. Here we generalize this approach to incorporate two additional features: an element of randomness or luck that leads to upset wins, and a "depth of competition" variable that measures the complexity of a game or hierarchy. Fitting the resulting model to a large collection of data sets we estimate depth and luck in a range of games, sports, and social situations. In general, we find that social competition tends to be "deep," meaning it has a pronounced hierarchy with many distinct levels, but also that there is often a nonzero chance of an upset victory, meaning that dominance challenges can be won even by significant underdogs. Competition in sports and games, by contrast, tends to be shallow and in most cases there is little evidence of upset wins, beyond those already implied by the shallowness of the hierarchy.
format Preprint
id arxiv_https___arxiv_org_abs_2312_04711
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Luck, skill, and depth of competition in games and social hierarchies
Jerdee, Maximilian
Newman, M. E. J.
Physics and Society
Social and Information Networks
Machine Learning
Patterns of wins and losses in pairwise contests, such as occur in sports and games, consumer research and paired comparison studies, and human and animal social hierarchies, are commonly analyzed using probabilistic models that allow one to quantify the strength of competitors or predict the outcome of future contests. Here we generalize this approach to incorporate two additional features: an element of randomness or luck that leads to upset wins, and a "depth of competition" variable that measures the complexity of a game or hierarchy. Fitting the resulting model to a large collection of data sets we estimate depth and luck in a range of games, sports, and social situations. In general, we find that social competition tends to be "deep," meaning it has a pronounced hierarchy with many distinct levels, but also that there is often a nonzero chance of an upset victory, meaning that dominance challenges can be won even by significant underdogs. Competition in sports and games, by contrast, tends to be shallow and in most cases there is little evidence of upset wins, beyond those already implied by the shallowness of the hierarchy.
title Luck, skill, and depth of competition in games and social hierarchies
topic Physics and Society
Social and Information Networks
Machine Learning
url https://arxiv.org/abs/2312.04711