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Rebecca Ponce De Leon

Assistant Professor of Management, Columbia University

A man hold his hand to his heart as a Proud Boys organizer recites the Pledge of Allegiance during a Proud Boys rally at Delta Park in Portland, Oregon on September 26, 2020. (MARANIE R. STAAB/AFP via Getty Images)

People overestimate groups they find threatening: when “sizing up” others, bias sneaks in

Jacqueline Rifkin, Rebecca Ponce De Leon