documented the interdisciplinarity of business communication scholarship whichcited sources beyond business, management, and economics, such as written and speech communication, psychology, andsocial science. Similarly, in calling for an “open-system” approach to building theory in public relations, Broom (2006) invitedmore interdisciplinary research: e.g., when building a conceptual foundation for theory on public relations roles, he suggestslooking beyond the public relations literature to fields such as business, counseling, psychology, sociology, anthropology,and economics.