Think oppression, and you're generally thinking in terms of an "archy;" patriarchy, oligarchy, thearchy, and more. To these, psychologist Melanie Joy wants to add "powerarchy."
It takes in the overall system of power wielded to oppress people, and it is the title of her book: Powerarchy: Understanding the Psychology of Oppression for Social Transformation.
Among the trends she explores: why people who value freedom and democracy occasionally vote to limit them.
The author joins us for a tour of her work.