Internal Why I refuse to just say ‘yeah’ at the office A new MIT study finds that saying ‘yeah’ in a meeting holds significant persuasive power. This author doesn’t care. By Daphne Gray-Grant@pubcoachAug. 15, 2013 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.