Examlex
U.S. exports make up less than 20 percent of GDP.
Rivalry
The competitive relationship between firms in the market, striving to gain advantage over each other in terms of sales, market share, or innovation.
Nonexcludable
A characteristic of a good or service whereby it is not possible to prevent people who have not paid for it from having access to it.
Free-rider Problem
A situation in which individuals benefit from resources, goods, or services without paying for them, leading to underprovision of those goods or services.
Public Goods
Goods that are non-excludable and non-rivalrous, meaning that anyone can consume them without diminishing their availability to others, such as public parks and clean air.
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