Examlex
Heredity and lack of sleep are just two factors that contribute to obesity in children.
Efficient Level
A state of resource allocation where it is not possible to make someone better off without making someone else worse off.
Excludable
A characteristic of a good where it is possible to prevent people who have not paid for it from having access to it.
Rival
A term describing a good or resource that cannot be enjoyed by more than one individual or group without reducing its availability to others.
Private Good
A product or service that is excludable and rival in consumption, meaning its use is limited to paying customers and one individual's use diminishes another's ability to use it.
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