If real GDP grows at an annual rate of 1.19% then we can expect real GDP to double in approximately how many years? Enter a number rounded to two decimal places.

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
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**Problem Statement:**

*If real GDP grows at an annual rate of 1.19%, then we can expect real GDP to double in approximately how many years? Enter a number rounded to two decimal places.*

**Guidance for Solution:**

To solve this problem, you can use the Rule of 70, a common method for estimating the number of years required to double an investment or a value at a consistent annual growth rate.

**Rule of 70 Formula:**

\[ \text{Doubling Time (years)} = \frac{70}{\text{Growth Rate (\%)}} \]

**Example Calculation:**

Given a growth rate of 1.19%, the estimated doubling time of the real GDP would be:

\[ \frac{70}{1.19} \approx 58.82 \text{ years} \]

Therefore, it would take approximately 58.82 years for the real GDP to double at an annual growth rate of 1.19%.
Transcribed Image Text:**Problem Statement:** *If real GDP grows at an annual rate of 1.19%, then we can expect real GDP to double in approximately how many years? Enter a number rounded to two decimal places.* **Guidance for Solution:** To solve this problem, you can use the Rule of 70, a common method for estimating the number of years required to double an investment or a value at a consistent annual growth rate. **Rule of 70 Formula:** \[ \text{Doubling Time (years)} = \frac{70}{\text{Growth Rate (\%)}} \] **Example Calculation:** Given a growth rate of 1.19%, the estimated doubling time of the real GDP would be: \[ \frac{70}{1.19} \approx 58.82 \text{ years} \] Therefore, it would take approximately 58.82 years for the real GDP to double at an annual growth rate of 1.19%.
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