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One hypothesis for why faces with normal features are rated as attractive is that normal means healthy. The research finding that presents the greatest challenge to this hypothesis is the finding that
Public Goods
Goods that are non-excludable and non-rivalrous, meaning they can be used by anyone without preventing others from using them as well.
Not Excludable
A characteristic of a good or service that does not allow producers to prevent its use by non-paying consumers, often leading to market failure.
Free Riders
Individuals who benefit from resources, goods, or services without paying for them, often leading to under-provision or depletion of those resources.
Club Goods
Items that are non-rivalrous but excludable, meaning that one person's use does not reduce availability to others but access can be restricted, typically through a membership fee.
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