The rule of 70 states that

A) the number of years it takes an economy to double in size is the growth rate times 70.
B) the number of years it takes an economy to double in size is the growth rate divided by 70.
C) it takes an economy 70 years to double its real GDP.
D) the number of years it takes an economy to double in size is 70 divided by the growth rate.


D

Economics

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