问题
单项选择题
Is a gold mine an example of a renewable or non-renewable resource and is the supply curve of gold perfectly elastic or inelastic in theory Type of resource Supply curve（） ①A. Renewable Inelastic ②B. Renewable Elastic ③C. Non-renewable Elastic
A. ①
B. ②
C. ③
答案
参考答案：C
解析：
There is a fixed amount of gold ore in the world so it is treated as a non-renewable natural resource. As such, its supply curve is horizontal (perfectly elastic) at a price equal to the present value of its expected price next period.