Provide examples of quasi-public goods.

Quasi-public goods are goods that possess characteristics of both public goods and private goods. They are non-excludable but are partially rivalrous in consumption. Examples of quasi-public goods include:

1. Toll roads: While anyone can use toll roads, they are not completely non-excludable as users need to pay a fee to access them.

2. Cable television: Cable television is available to anyone who subscribes to the service, but it is not accessible to those who do not pay for it.

3. Natural resources: Resources such as water, forests, and fisheries can be considered quasi-public goods as they are available to everyone, but their consumption can be limited due to regulations or property rights.

4. Museums and libraries: These institutions are open to the public, but they may charge admission fees or require membership for certain services or access to specific resources.

5. Public transportation: Public transportation systems like buses or trains are available to anyone, but they may require payment of fares to use them.

These examples demonstrate how quasi-public goods have characteristics of both public goods and private goods, making their classification more complex than purely public or private goods.