Which leadership style tends to centralize authority and make unilateral decisions?

Leadership styles are: ·         laissez faire (complete freedom to subordinates), ·         bureaucratic (Leaders strictly adhere to the organizational rules and policies and make sure that the employees also strictly follow the rules and procedures) ·         Autocratic (Centralised/ unilateral decision making with the leader) ·         Democratic (decisions are made by the leader in consultation with subordinates) ·         Transactional (Managers and team members set predetermined goals together, and employees agree to follow the direction and leadership of the manager to accomplish those goals) ·         Transformational (Leaders focus on the big picture within an organization and delegate smaller tasks to the team to accomplish goals)