If the required reserve ratio is one-third, currency in circulation is $300 billion, and checkable deposits are $900 billion, then the currency-deposit ratio is

Refer to Figure 4-20. The equilibrium price in the market before the tax is imposed is

a. $8.
b. $6.
c. $5.
d. $3.

Recently, you decided to super-size your fries at McDonald's. On the one hand, your decision to super-size considered the additional costs associated with the super-size, including the additional monetary, caloric and cholesterol intake, as well as the extra time you had to wait for those fries because a new batch was being prepared. On the other hand, you determined that the extra benefits from super-sizing included a few more mouthfuls of satisfaction from an increased portion of fries. The benefits clearly outweighed the costs since you chose to super-size. Which of the following does this illustrate?

a. Marginal analysis b. The law of demand c. Delayed gratification d. Diminishing marginal utility e. Random behavior