olemus
hüvis, mida igaüks saab tarbida
vähendamata selle saadavust teistele, näiteks
avalik park, kanalisatsioon, riigikaitse, õiguskaitse

Oxford Reference:
a good that no consumer can be excluded from using if it is supplied, and for which consumption by one consumer does not reduce the quantity available for consumption by any other

ülevaateid
https://en.wikipedia.org/wiki/Public_good_(economics)

https://en.wikipedia.org/wiki/Common_good

https://www.khanacademy.org/economics-finance-domain/microeconomics/market-failure-and-the-role-of-government/externalities-topic/a/public-goods-cnx

https://scholar.harvard.edu/files/stantcheva/files/lecture8.pdf

https://plato.stanford.edu/entries/public-goods/