Over the past 100 years, Canadian real GDP per person has doubled about every 35 years. If in the next 100 years it doubles every 25 years, then what will Canadian real GDP per person be a century from now?

Question

Quizplus · Accepted Answer

If Canadian real GDP per person doubles every 35 years, then after 100 years it would double approximately 2.86 times (100/35). Therefore, Canadian real GDP per person at the end of that 100-year period would be:

Current GDP per person x 2.86 x 2.86 x 2.86 = Current GDP per person x 22.08

However, if Canadian real GDP per person doubles every 25 years instead, then after 100 years it would double 4 times (100/25). Therefore, Canadian real GDP per person at the end of that 100-year period would be:

Current GDP per person x 4 x 4 x 4 x 4 = Current GDP per person x 256

Thus, the Canadian real GDP per person at the end of the next 100 years would be 16 times (256/16) higher than it is now, so the correct choice is D.

Over the Past 100 Years, Canadian Real GDP Per Person