subsidiarity
noun /səbˌsɪdiˈærəti/,  /ˌsʌbsɪdiˈærəti/
  /səbˌsɪdiˈærəti/,  /ˌsʌbsɪdiˈærəti/
[uncountable]- the principle that a central authority should not be very powerful, and should only control things which cannot be controlled by local organizations