The current account balance is equal to net exports ________ net interest ________ net transfers

If tolls on a toll road can be raised significantly before commuters will consider using a free alternative, then an increase in tolls will result in

A) an increase in total revenue. B) a decrease in total revenue. C) a decrease in non-toll road usage. D) an increase in toll road usage.

Economists often treat the economy's capital stock as fixed because

A) labor is a more important factor of production than capital, so economists ignore capital. B) it takes a long time for new investment and the scrapping of old capital to affect the overall quantity of capital. C) there is very little capital in the economy compared with the amount of labor. D) unless the interest rate changes, the capital stock doesn't change.