According to The Economist's 2013 "Glass-ceiling index" of five indicators of friendliness towards working women, South Korea ranks the lowest of all OECD countries because of its lack of women in senior jobs.[10] Historically, however, a small minority of women played an active role in society and even wielded political influence. These people included female shamans (mudang), who were called upon to cure illnesses, tell fortunes, or in other ways enlist the help of spirits in realizing the wishes of their clients. Despite its sponsorship of neo-Confucianism, the Choson Dynasty had an office of shamanism, and female shamans often were quite influential in the royal palace.