* **Private Goods** (with subtractability--when you use it it is no longer available for others, like water and money)
* **Public Goods** (difficult to exclude potential beneficiaries) -Peace and security of a community, national defense, knowledge, fire protection, weather forecasts, etc. -The range and scale of public goods are immense.
* **Common-Pool Resources** (difficult to exclude potential beneficiaries along with subtractability) -Forests, water systems, fisheries, global atmosphere -Our sources of wellbeing and health at a neighborhood and community scale? -The range and scale of common-pool resources are immense.
* **Toll Goods** (non subtractability and low cost of exclusion) -Theaters, private clubs, day care centers -See Toll Goods