The Demand for Plumbers Is the Same in Country a and Country

question 213

Multiple Choice

The demand for plumbers is the same in country A and country B, but the plumbers in country A earn less than the plumbers in country B. What can explain this difference?

• A) The economy of country A is more productive than the economy of country B.
• B) The economy of country B is more productive than the economy of country A.
• C) The supply of plumbers is greater in country A than country B.
• D) The supply of plumbers is greater in country B than country A.

---

Definitions:

Host Rock

The original rock formation that contains minerals, gems, or other economically valuable materials, or into which ore is introduced during hydrothermal events.

Conventional Oil

Oil that is produced through traditional drilling methods, as opposed to unconventional methods like fracking.

Net Energy Ratio

A measure comparing the amount of energy available from a resource to the amount of energy used to obtain that resource.