Examlex
As far as choosing marriage partners,what effect do our families have?
Nonexcludable
A characteristic of a public good where no one can be prevented from using it.
Nonrival
A characteristic of a good or service whereby one person's consumption does not diminish the utility or availability for others.
Free-Rider Problem
A situation where individuals consume a public good without contributing to its cost, potentially leading to underproduction or depletion of that good.
Air Pollution
The presence of harmful or excessive quantities of substances in the air, potentially harmful to human health and the environment.
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