Corruption involves wrongdoing by those in positions of power through illegitimate or unethical means and is often associated with bribery. Corruption exists among both the rich and poor. Common forms include bribery, embezzlement, extortion, abuse of discretion, favoritism, and improper political contributions. Transparency International publishes the annual Corruption Perceptions Index, which ranks countries based on perceived corruption levels as determined by experts and surveys. The index defines corruption as the misuse of public power for private gain. Countries are ranked on a scale from 0 (highly corrupt) to 100 (very clean). The document recommends forming an independent anti-corruption agency to investigate and reduce corruption, and suggests