The initial typology is very useful for people to better understand the fundamental driving forces behind the complicated scenarios of different sites and different contexts. Information–crucial to protection policies and to dayizhi in particular–is often simply missing. Institutional actors and mechanisms differ in cities and rural areas, according to the ownership framework. China exercises tight control via a hierarchical, top-down approval process for land use, including the preparation of a land master plan, at various levels. The ownership of immovable cultural heritage in China is separated from the land on which it is attached–similarly to other uses, such as residential housing. Operating cost is one of the missing points in the whole dayizhi policy, and many newly developed facilities discover, soon after starting daily operations, that they are not financial sustainable.