Microeconomics 6th Edition by Robert Hall, Shirley Kuiper, Marc Lieberman

تمرين 16

State whether each of the following is a stock variable or a flow variable,and explain your answer briefly.
a. Total farm acreage in the U.S.
b. Total spending on food in China
c. The total value of U.S. imports from Europe
d. Worldwide iPhone sales
e. The total number of parking spaces in Los Angeles
f. The total value of human capital in India
g. Investment in new human capital in India