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Executive Summary
Harvard Business School professor Mikolaj Jan Piskorski and doctoral candidate Andreea Gorbatai look to the editing process on Wikipedia to test and validate the well-accepted (but little-verified) theory of sociologist James Coleman that social norm violations decline as network density increases. Support for Coleman's mechanism would alert us to the importance of punishments for norm violations and rewards for such punishments, and thus help us to design social systems in which norms are observed.
Key concepts include:
- Coleman argued that high-density networks provide an opportunity structure within which third parties can compensate norm enforcers for the expense of chastising norm violators. Such payments encourage actors to punish those who violate norms, which in turn reduce the incidence of norm violation.
- Despite ubiquitous citations of Coleman's explanation, little empirical work has tested it convincingly.
- The researchers identified the improper use of the revert command by Wikipedia contributors-by which users can quickly knock out text they don't agree with and revert it back to a prior state-as a norm violation.
- The research found substantial support for the theory, suggesting that increasing network density to elicit norm compliance is justified.
- On Wikipedia, norm violations, punishments for such violations, and rewards for those who punish violators are all highly visible. Replicating these conditions in the design of a social system is critical; otherwise, norm violations will remain undetected and therefore unpunished.
