For a country to double its per capita income every twenty years, it would have to sustain an annual economic growth rate equal to

Refer to the given data. Alpha is a(n):

A.  increasing-cost economy, whereas Omega is a constant-cost economy.
B.  constant-cost economy, whereas Omega is an increasing-cost economy.
C.  increasing-cost economy, as is Omega.
D.  constant-cost economy, as is Omega.

If an excise tax reduces economic surplus why does the government impose the tax?

A. The marginal benefits of programs funded by the tax is worth the marginal cost. B. The opportunity cost of having the tax is higher. C. Tax revenue is scarce and the government needs to tax the right goods. D. The government needs the money to get out of debt.