Quasi-public good
Definition. A quasi public good is a good that has some but not all of the characteristics of a pure public good, being only partially non excludable or only partially non rivalrous. It is neither fully a private good nor a pure public good, so the market may provide it but often imperfectly.
A road is a common example, as it is largely non rivalrous when uncongested but becomes rivalrous once congested, and access can sometimes be excluded through tolls or charges.
This term belongs to Public Goods in A Level Economics. Read the full chapter for the diagrams, worked examples and exam technique.
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