The power-distance index (PDI) is a measurement of the acceptance of a hierarchy of power and wealth by the individuals who make up the general population of a nation, culture, or business. Developed by Dutch social psychologist Geert Hofstede, the PDI ultimately provides insight into the extent to which regular citizens, or subordinates, accept or challenge the authority of the person or people in charge.

Hofstede’s PDI is lower in countries and organizations where authority figures work closely with subordinates. The PDI is higher in places with a strong hierarchy.