Lussier and Achua (2004) define leadership styles as a combination of traits, skills, and behaviors that leaders use in their interactions with employees. To understand and decide on a certain leadership style, one must know the characteristics of favorable leadership style. Over the years, researchers have debated the topic of leadership because when conducting different studies, styles have different results. However, research on this topic indicates that specific characteristics or traits are inherent in leaders and are cited in Murphy (2005). It cannot be about developing mental education or personal skills. The broad core trait theory states that leaders are born, not made, and the trait theory emphasizes that certain traits are necessary for a leader to be successful. Studies conducted on leadership styles did not begin until the 1930s because there was no such thing as leadership. much academic interest in these respective areas of leadership. In the literature, the most extensive research analyzing the two types of leadership styles and their influences on job performance was done by the University of Iowa, led by Kurt Lewin, White, and Lippitt. The two styles identified were autocratic and democratic leadership. style (Sadler, 2003, p. 70).Lewin and his associates conducted studies on four groups formed by eleven-year-old boys in different types of work climate, their objective was to compare the two leadership styles identified by them and analyze how the group members will react. The researchers' conclusion is that the autocratic leader is the type of leader who will make decisions and impose them on subordinates without giving them the opportunity to question the decision.... middle of paper . .....h consideration. A comparative study by Hersey and Blanchard (1988) revealed that the effectiveness of leadership styles is based on the maturity of the subordinates to whom they refer, on the ability and willingness of employees to work without instructions. The results suggest that when subordinate maturity is high, the best approach is relationship-oriented styles. Task-oriented styles have been proven to work in cases where the maturity of subordinates is lacking (Sadler, 2003, p. 77). Even so, with the data analyzed from several leadership studies there was no conclusive evidence to name the most effective leadership style, what contingency theories discovered was that employees are more satisfied with a leader who uses a very thoughtful approach and productivity levels are higher. than normal (Lussier & Achua, 2004, p.. 75).