Mita Mallick, head of inclusion, equity, and impact at the firm Carta, says gaslighting at the office is more common than many people realize. That's when a manager or coworker engages in behavior where one thing happens, and they try to convince the victim otherwise. Gaslighting can damage the victim’s well-being and performance as well as the company overall. She explains how to recognize the manipulative behavior, what to do about it in the moment, and how companies can respond. Mallick wrote the HBR.org article "How to Intervene When a Manager Is Gaslighting Their Employees."