Breadcrumb Directory Faculty Nadine Keller Nadine Keller Adjunct Assistant Professor of Business Marketing Division Contact E-mail: mnk2142@columbia.edu All Activities Research Teaching Achievements Press Authored Works CaseWorks Journal articles Working papers Articles Books Chapters Courses Case Studies Course B8613: Entrepreneurial Selling View Course on Entrepreneurial Selling Awards Grants In the Media Articles Articles CaseWorks This faculty member has no associated CaseWorks cases currently.