Goal setting theory establishes that setting specific, measurable, achievable, realistic and time-targeted goals improves performance. The theory was established by Edwin Locke in the 1960s based on Aristotle's view that purpose can cause action. Goals focus attention, provide motivation to exert effort, encourage persistence through obstacles, and activate knowledge to achieve the goal. In business, goal setting encourages employees to work harder and helps managers prioritize tasks. Real examples show goals can significantly increase performance when properly implemented.