Power refers to the ability to influence others based on their dependence. Dependence increases when a resource is important, scarce, and non-substitutable. There are various bases of power including formal power, coercive power, reward power, legitimate power, expert power, and referent power. Influence tactics are used to translate power into actions and include rational persuasion, inspiration, consultation, and pressure. Organizational politics can arise when resources are scarce and decisions are complex, and can lead to defensive behaviors by employees like avoidance and impression management.