Group identity and decision-making: information cascades and decision bias | The Oxford Review

Group identity and decision-making: information cascades and decision bias

Research Briefing

Keywords: decision-making, group decision-making, social identity, herd behaviour

Frequently in group decision-making situations, people are asked one after the other what decision they have made. This form of sequential decision-making is a popular process in many groups, however, new research has found that there are significant issues with this approach.

Many previous studies have shown that individuals tend to act and make decisions that are biased towards their own ingroup and against outgroup interests. This form of herding behaviour has been shown to exist in boardrooms, judges’ decision making, politics and a range of other situations. In particular, a 2018 study found that the order in which people announce their decision can have a significant impact on inducing conformism with a group decision.

This research briefing is essential reading for anyone interested in group and team decision making and decision bias.

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Disclaimer: This is a research review, expert interpretation and briefing. As such it contains other studies, expert comment and practitioner advice. It is not a copy of the original study – which is referenced. The original study should be consulted and referenced in all cases. This research briefing is for informational and educational purposes only. We do not accept any liability for the use to which this review and briefing is put or for it or the research accuracy, reliability or validity. This briefing as an original work in its own right and is copyright © Oxford Review Enterprises Ltd 2016-2019. Any use made of this briefing is entirely at your own risk.