Voluntariness is a necessary condition of valid consent. But determining whether a person consented voluntarily can be difficult, especially when people are subjected to coercion or manipulation, placed in a situation with no acceptable alternative other than to consent to something, or find themselves in an abusive relationship.

A high quality and comprehensive survey of a major area of philosophy, which spans ethics, free will, political philosophy, philosophy of law and applied ethics Includes chapters on hot topics such as responsibility and AI, historical injustices, feminism, manipulation and coercion, insanity, war and self defence and climate change The most thorough and wide-ranging volume published on the philosophy of responsibility available