Industry WIKI

Club goods (also artificially scarce goods, toll goods or quasi-public goods) are a type of good in economics, that are excludable (unlike public goods) but non-rivalrous, at least until reaching a point where congestion occurs.

In economics, unit of account, sometimes called currency unit or monetary unit, is a standard unit of measurement of the market value of goods, services, and other transactions. Also known as a measure of relative worth and a standard of deferred payment, a unit of account is a necessary prerequisite for the formulation of commercial agreements that involve debt.