Alfred Nobel determined who would decide winners in his will establishing prizes . Peace prize decided by five - person committee elected by Norwegian parliament . Committee chooses nominees from list of qualified nominators . Nominees are then nominated and winner is decided by public vote .
Alfred Nobel determined who would decide winners in his will establishing prizes . Peace prize decided by five-person committee elected by Norwegian parliament . Committee invites nominees from hundreds of qualified nominators . Nominees are then shortlisted and winner is decided by majority vote .