The problem of leadership began to be studied immediately after the Second World War was being seen as an important issue in the economic recovery of the affected countries.
Like the leader's personal traits, the type of leadership - the behavioral pattern manifested by the leader, as perceived by others, as it is involved in influencing their activities (Hersey and Blanchard, 1982). It - was approached by researchers for the purpose of identifying optimal variants, with the potential of ensuring the efficiency of the driving act.
The models verified and promoted by theoreticians have highlighted efficient and less efficient variants of the types of leadership., Aall of them, however, subject to the foreseeable and unpredictable effects of the factors that delimit the context of the leadership. There is no consensus of the researchers regarding the typology of the models and this is mainly a result of the evolution of knowledge in the field of management and leadership.
Based on the suggestions offered by the recent approaches (Brehm, Kassin, 1990; Radu, Iluţ, Matei, 1994; Chirică, 1996; Mullins, 1996) we propose the following typology of management models: personal model or trait model, the functional model, model of behavioral categories and leadership styles, situational models and contingent models, transactional model (of social exchange), the integrative interaction model.
Chirică,S. (1996), Psihologie organizaţională; Casa de Editură şi Consultanţă “Studiul organizării”, Cluj-Napoca
 Hersey, P., & Blanchard, K. H. (1982). Management oforganizational behavior: Utilizinghuman resources (4th ed.). Englewood Cliffs, NJ: Prentice-Hall.
 Chirică,S. (1996), Psihologie organizaţională; Casa de Editură şi Consultanţă “Studiul organizării”, Cluj-Napoca