web3/concepts/public-goods-problem.md

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# Public Goods Problem
A problem in economics where a collective good or service must be sustained by [mutualization](mutualization.md) of funds across different parties with different incentives while maintaining access.
* National defence is a public good.
* Open source software is a public good.
* City parks are a public good.
See also [free rider problem](free-rider-problem.md).
## References
1. Oakland, William H. "Theory of public goods." In Handbook of public economics, vol. 2, pp. 485-535. Elsevier, 1987.
1. Stiglitz, Joseph E. "The theory of local public goods." In The economics of public services, pp. 274-333. Palgrave Macmillan, London, 1977.