Stacy Landreth GrauStacy Grau, PhD, is a professor of entrepreneurship & innovation practice at the Neeley School of Business at Texas Christian University and director, Idea Factory in the School of Interdisciplinary Studies at Texas Christian University (TCU).Her research centers on source credibility and influencers in marketing and advertising. She is the author of more than 30 academic articles and three books and serves on the editorial boards of Journal of Advertising, International Journal of Advertising, and Journal of Product and Brand Management. Read More Read Less