This PDF is a synopsis of the core principle. There are additional resources/links to be included under the principle of Subsidiarity.
While social institutions are a good, they also present dangers. Excessive intervention by the state can threaten personal freedom and initiative. The teaching of the Church has elaborated the principle of subsidiarity which states that a community of a higher order should not assume the task belonging to a community of a lower order and deprive it of its authority. It should rather support it in case of need. Compendium CCC, 403; CCC 1883.
Partnerships that Advance Subsidiarity