The fundamental problem of public things, needed for survival, such as space programs, is the free rider problem.

He then gives a description of what is know called the free rider problem:

Unlike public goods, private goods are less likely to have the free rider problem.

He describes the bargaining impasse as a "free rider" problem.

Positive externalities are often associated with the free rider problem.

With many A's and B's, the free rider problem arises.

He has let America fall prey to what economists call the "free rider" problem.

Labor counters that the open shop leads to a free rider problem.

The free rider problem is often cited as the rationale for union security agreements.

There are alternative solutions to the free rider problem in labor relations.