________ is a monopoly that exists in an industry where large economies of scale act as a barrier to entry.

If the government proposed a one-time tax of 25% on accumulated wealth, this would likely

A) reduce the incentive for individuals to accumulate wealth. B) increase the incentive for individuals to accumulate wealth. C) have no impact on individual accumulation of wealth since it is a one-time tax. D) All of the above are equally likely to happen.

If the Fed lowers the interest rate, then

A) only consumption expenditure decreases. B) only investment decreases. C) both consumption expenditure and investment decrease. D) net exports will increase. E) consumption expenditure decreases and investment increases.