Whenever it is too expensive to even think about barring certain individuals from admittance to a natural asset. the asset is either called a typical property asset [when there is contention for the asset. with the end goal that one individual's utilization of the asset decreases others' chance to utilize the asset} or a public decent [when utilization of the asset is non-rivalrousl. Regardless of non- rejection, market designation is probably going to be wasteful