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Chapter 4: Problem 43

Would you prefer that your salary be modeled exponentially or logarithmically? Explain your answer.

Short Answer

Expert verified
Exponential growth is preferred as it represents a continuously increasing salary without limit. In contrast, logarithmic growth, although initially rapid, slows down significantly over time and never grows infinitely.

Step by step solution

01

Understand exponential growth

An exponential function can be described by the formula \(y = a*b^{x}\) where \(a\) is the initial amount (the starting salary in this case), \(b\) is the growth factor (the raise percentage expressed in decimal form), and \(x\) is the time (number of periods). In the context of this problem, if your salary is growing exponentially, it is basically doubling (or tripling, quadrupling, etc.) every period.
02

Understand logarithmic growth

A logarithmic function can be written as \(y = a + b \cdot log(x)\), where \(a\) is the vertical shift (the initial salary), \(b\) is the multiplier determining the steepness of the function and \(x\) is the time (number of periods). If your salary is growing logarithmically, it will increase quickly at first, but will slow down over time, never reaching infinite growth.
03

Compare the two growth models

Upon comparing the exponential and logarithmic functions, it can be seen that the salary growing exponentially will increase quickly and without bound. In contrast, the salary characterized by logarithmic growth starts with a high increase rate, but this rate decreases over time. The total amount gained will never reach infinity like in the case of exponential growth. Therefore, it is preferable to have an exponentially growing salary.
04

Conclusion

In conclusion, from a financial perspective and in the long run, an individual would prefer that their salary growth be modeled as an exponential function. This is because exponential growth leads to a higher salary over time compared to logarithmic growth.

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