Refer to Figure 4-4. What is the value of the deadweight loss at a price of $18?

In a closed economy that is in equilibrium, investment is equal to:

A. private saving. B. public saving. C. private saving plus public saving. D. disposable income minus consumption.

If the price of bread were zero, a budget line between bread (on the vertical axis) and cheese (on the horizontal axis) would

a. not exist b. be vertical c. coincide with the vertical axis d. be horizontal e. coincide with the horizontal axis