Daniel "Dan" R. Denison is professor of organization and management at IMD Business School in Lausanne, Switzerland, and chairman and founding partner of Denison Consulting. His area of special interest is organizational culture and leadership, and the impact they have on the performance and effectiveness of organizations. His work on organizational culture is heavily cited in the field, and he is the author of a seminal article on the distinction between organizational culture and climate (the notion of organizational climate predates that of the organizational culture). His model of organizational culture is widely known and used in academic research in organizational culture, effectiveness and performance.