A mathematical approximation called the rule of 70 tells us that the number of years that it will take something that is growing to double in size is approximately equal to the number 70 divided by its percentage rate of growth. Thus, If Mexico's real GDP per person is growing at 7 percent per year, it will take about 10 years (= 70/7) to double. Apply the rule of 70 to solve the following problem. Real GDP per person in Mexico in 2005 was about $12,000 per person, while it was about $48,000 per person in the United States.

Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)
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Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
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Chapter5: Business And Economic Forecasting
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Problem 1.3CE: Logarithms are especially useful for comparing series with two divergent scales since 10 percent...
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A mathematical approximation called the rule of 70 tells us that the number of years that it will take something that is growing to
double in size is approximately equal to the number 70 divided by its percentage rate of growth. Thus, If Mexico's real GDP per person
is growing at 7 percent per year, it will take about 10 years (= 70/7) to double. Apply the rule of 70 to solve the following problem. Real
GDP per person in Mexico in 2005 was about $12,000 per person, while it was about $48,000 per person in the United States.
Transcribed Image Text:A mathematical approximation called the rule of 70 tells us that the number of years that it will take something that is growing to double in size is approximately equal to the number 70 divided by its percentage rate of growth. Thus, If Mexico's real GDP per person is growing at 7 percent per year, it will take about 10 years (= 70/7) to double. Apply the rule of 70 to solve the following problem. Real GDP per person in Mexico in 2005 was about $12,000 per person, while it was about $48,000 per person in the United States.
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