# Public Goods

Public goods are goods which anyone can use and benefit from, not just those who contribute to the creation and/or upkeep of the good.

* Public goods are non-excludable: anyone can use them.  
* Public goods are non-rival: one person's consumption of the good does not diminish another person's consumption of it.

| Rival         | Non-Excludable |      Excludable       |
| -----------   | ------------   | ----------------------|
| Yes           | Private goods  | Common-Pool Resources |
| No            | Club goods     | Public Goods          |

## Examples of public goods:

* National defence
* Open source software 
* City parks
* Lighthouses
* Street lights

See [Public Goods Problem](public-goods-problem.md)