When investment is autonomous, it is independent of the level of national income

Everything else held constant, if the tax-exempt status of municipal bonds were eliminated, then

A) the interest rates on municipal bonds would still be less than the interest rate on Treasury bonds. B) the interest rate on municipal bonds would equal the rate on Treasury bonds. C) the interest rate on municipal bonds would exceed the rate on Treasury bonds. D) the interest rates on municipal, Treasury, and corporate bonds would all increase.

For a price ceiling to have an impact on a market it:

A. must be set at the equilibrium price. B. must be set below the equilibrium price. C. can lead more goods to be produced in a market. D. must be set above the equilibrium price.