a. What type of good is a high-speed rail network?

b. Why might it be provided by government rather than privately?

c. Can you think of parts of the United States that have a similar population density to Europe where high-speed rail might be efficient?

d. What information would be needed to determine the efficient amount of high-speed rail in the United States?

Table 1, which provides data about a dandelion control program.

Table 1

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Quantity (square miles sprayed per day) 0.5 1.0 1.5 2.0 2.5 3.0 Marginal social cost (dollars per day) 0 100 200 Marginal social benefit 300 400 500 600 500 400 300 200 100