Definitions for "Free-Rider Problem"
a problem arising in the case of public goods because those who do not contribute to the costs of providing the public good cannot be excluded from the benefits of the good.
the problem that occurs when someone thinks he may be able to enjoy something without paying for it, and so fails to contribute to the cost; free-rider problems arise in the provision of public goods
the difficulty faced by interest groups when trying to attract members who will benefit from their activities even when they do not contribute.