Super-teams or fair leagues? Parity policies by powerful regulators don't prevent capture

by   Adam Sawyer, et al.

Much of modern society is founded on orchestrating institutions that produce social goods by fostering motivated teams, pitting them against each other, and distributing the fruits of the arms races that ensue. However, even when the "market maker" is willing and able to maintain parity between teams, it may fail to maintain a level playing field, as some teams acquire enough advantage within the system to gain influence over it and institutionalize their advantage. Using outcomes of over 60,000 games from four professional basketball leagues and more than 100 years' worth of seasons, we compute the evolving rate of transitivity violations (A>B, B>C, but C>A) to measure the ability of leagues to maintain parity between teams, and support the efficient generation and distribution of innovation. Comparing against a baseline of randomly permuted outcomes, we find that basketball has become less competitive over time, suggesting that teams diverge in performance, and reflecting a possible failure of market makers to tame their overpowered teams. Our results suggest that rich-get-richer dynamics are so pernicious that they can even emerge under the watch of a powerful administrator that is motivated to prevent them.


The Effects of the NBA COVID Bubble on the NBA Playoffs: A Case Study for Home-Court Advantage

The 2020 NBA playoffs were played inside of a bubble in Disney World bec...

NADI 2021: The Second Nuanced Arabic Dialect Identification Shared Task

We present the findings and results of the Second Nuanced Arabic Dialect...

A Theory of Scrum Team Effectiveness

Scrum teams are the most important drivers to lead an Agile project to i...

Skill-Based Differences in Spatio-Temporal Team Behavior in Defence of The Ancients 2

Multiplayer Online Battle Arena (MOBA) games are among the most played d...

The effect of multidisciplinary collaborations on research diversification

This work verifies whether research diversification by a scientist is in...

Exploring the Benefits of Teams in Multiagent Learning

For problems requiring cooperation, many multiagent systems implement so...

Prior Distributions for the Bradley-Terry Model of Paired Comparisons

The Bradley-Terry model assigns probabilities for the outcome of paired ...