If hikers and others had to pay a fee to use the Appalachian Trail, the use of this common resource would be . It would be if the most popular spots had more highly priced access.

If hikers and others had to pay a fee to use the Appalachian Trail, the use of this common resource would be more efficient because the price could be set to equal marginal social benefit at the efficient quantity. It would be even more efficient if the most popular spots had more highly priced access.

Explanation:

Hikers are the person who goes for long walk from a lower elevation to higher elevation.

Common resources are the resources that are available to everyone in-spite of difference. The common resource is open source so it benefits the users.

In the above scenario, government decides to charge the hikers and others using the Appalachian Trail. The common resources can be used efficiently if the popular spots had more highly priced access.

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