McGregor's Theory X and Y studies management and leadership styles. Theory X managers believe that employees do not actually like their job and need to be controlled. However, by contrast, theory Y managers believe that employees like their job so that managers are likely to give them more opportunities to participate in making decisions, which seems to be democratic leadership. (Marcouse, Surridge and Gillespie, 2011) Leadership is the person who occupies certain leader position, owns certain leader function and power, assumes certain leader responsibility and implements certain leader function. It is known that the leadership can be divided into different styles, such as Authoritarian, Democratic, Participative and Laissez faire leadership style. According to Benjamin & Flynn (2006), authoritarian leadership refers to the decision-making basic focus on a type of leadership the Supreme leader while the democratic leadership is that except a few major problems are decided by the leader, the other business issues are solved by the general leadership types. Participative leadership is a special form of Democratic leadership, its main characteristic is that most decisions are reached in and subordinate based on consensus, the interpersonal relationship is in the first place. Laissez faire leadership refers to the basic grant decision-making power of subordinates, it is a type of leadership leaders that responsible for the guidance, coordination and incentive staff mainly (Chaudhry & Javed, 2012). And the leadership style should be accompanied withe the need of the company. As for John Lewis, it gives a great power to the employees that are a kind of democratic leadership. .
Maslow (1943) puts up that the need of human can be form to five level, that is Physiological needs, Safety needs, Love and belonging, Esteem, Self-actualisation five class, followed by a lower level to a higher level arrangement.
