The level of the exports of U.S. goods and services amounted to ________ trillion, or 14% of GDP in 2011

When the price of a good changes, other things constant, what occurs?

A) The supply curve shifts to the right. B) The supply curve shifts to the left. C) The supply curve becomes flatter. D) The supply curve becomes steeper. E) Only quantity supplied changes.

Refer to the information above. What is the approximate value of the multiple of combined physical and human capital that the rich country must have in order to produce 10 times the output per person of the poor country?

A) 1000 B) 100 C) 25 D) 15