Theories and research lines regarding the franchise system: a review from the 60's to.

Many works have analyzed franchising and identified the major research lines regarding the scientific works published until that moment (Elango and Fried, 1997; Díez de Castro and Rondán, 2004). The present paper tries to follow this process. Moreover, it is identified the theories used by researchers to study franchising -agency theory, resource scarcity theory, risk extension theory, contractual theory, transaction cost theory, as well as signaling theory-, and explained its contributions to the literature. Subsequently, four research lines are highlighted in conjunction with main literature about the topic, and emphasized those studies developed by Spanish researchers under the form of papers, conference proceedings, books, book's chapters, as well as dissertations. In doing so, we attempt to offer a whole vision about franchising literature from the 60s up to date.