The problem is the main source of market failure in the provision of nonexcludable public goods.

Free Rider

Explanation:

Non-excludable goods refers to public goods that are free to the public to use such goods and therefore there is no restriction to the  consumption of non-excludable goods because every single individual  has the right to access and consume it  For example,  Public parks, roads, and public infrastructures.

A non excludable good can overtime have a negative result in a community, because such good need to be constantly maintained so as to continue to be beneficial and  therefore may require small token of fair share among its consumers but there would always be some individuals who are referred to as Free Riders  who would rather use the good without paying for it and in the long run cause the good to not be adequate for all or difficult  to be maintained at its best resulting to failure in the provision of the non excludable public goods.

the free rider problem can be solved by

1. Government's intervention to subsidize the public good through fair distribution of tax, using the pay as you earn method .

2. Overused non excludable good can be privatized, ensuring that people who consume it, contribute to ts maintenance.