Amy Edmondson, professor at Harvard Business School, first identified the concept of psychological safety in work teams in 1999. Since then, she has observed how companies with a trusting workplace perform better. Psychological safety isn't about being nice, she says. It’s about giving candid feedback, openly admitting mistakes, and learning from each other. And she argues that kind of organizational culture is increasingly important in the modern economy. Edmondson is the author of the new book "The Fearless Organization: Creating Psychological Safety in the Workplace for Learning, Innovation, and Growth.”