Rivalry (economics)
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In economics, a good is said to be rivalrous or a rival if its consumption by one consumer prevents simultaneous consumption by other consumers, or if consumption by one party reduces the ability of a
Wild fish stocks are a rivalrous good, as the amount of fish caught by one boat reduces the number of fish available to be caught by others.
Free-rider problem
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In economics, the free-rider problem is a type of market failure that occurs when those who benefit from resources, public goods and common pool resources do not pay for them or under-pay. Free riders
Rivalry (economics)
…anti-rivalrous—any country acting as a free rider will benefit from the efforts of others to combat this problem, even while not contributing itself. Free-rider problem Metcalfe's law…
Passengers who circumvent payment turnstiles are "free-riding" on the train.