in the fundamental papers by Paul A. Samuelson, a sharp conceptual distinction is made between those goods and services that are " purely private " and those that are " purely public ". No general theory has been developed which covers the whole spectrum of ownership-consumption possibilities, ranging from the purely private or individualized activity on the one hand to purely public or collectivized activity on the other. One of the missing links here is " a theory of clubs ", a theory of co-operative membership, a theory that will include as a variable to be determined the extension of ownershipconsumption rights over differing numbers of persons.

请教各位大侠：

一是ownership-consumption 怎么翻译，是什么含义？
二是最后那句话？什么意思？怎么翻译好？

谢谢了！