Can diversity lead to better decisions? A recent study showed that financial traders working with people of similar backgrounds placed too much trust in one another’s judgment, leading to significantly more errors. Groups with more diversity saw increased skepticism — and fewer mistakes. Some see these findings as evidence that “groupthink” can lead to financial bubbles and other disastrous outcomes. We explore the research around diversity and decision making.


  • Howard Ross Diversity consultant; Principal, Cook Ross; Author, "Everyday Bias: Identifying and Navigating Unconscious Judgments in Our Daily Lives" (Rowman & Littlefield Publishers, 2014).
  • Sheen Levine Professor, Institute for Social and Economic Research and Policy, Columbia University

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