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Multiple Choice
All else held constant, the present value of an annuity will decrease if you:
A
decrease the discount rate
B
decrease the payment amount
C
increase the number of periods
D
increase the discount rate
Verified step by step guidance
1
Understand the concept of present value of an annuity: The present value of an annuity is the current worth of a series of future payments, discounted at a specific rate. It is calculated using the formula: \( PV = P \times \frac{1 - (1 + r)^{-n}}{r} \), where \( P \) is the payment amount, \( r \) is the discount rate, and \( n \) is the number of periods.
Analyze the impact of the discount rate: The discount rate \( r \) is inversely related to the present value. As \( r \) increases, the denominator in the formula becomes larger, reducing the overall present value.
Consider the effect of decreasing the payment amount \( P \): If \( P \) decreases, the present value will also decrease because \( P \) is directly proportional to \( PV \).
Evaluate the effect of increasing the number of periods \( n \): Increasing \( n \) adds more terms to the calculation, which can increase the present value depending on the discount rate. However, this is not the primary factor in this scenario.
Conclude that increasing the discount rate \( r \) will decrease the present value of the annuity, as it directly impacts the formula by reducing the value of the fraction \( \frac{1 - (1 + r)^{-n}}{r} \).