Paul Atreides wants to save money to meet three objectives. First, he would like to be able to retire 20 years from now with retirement income of $15,000 per month for 20 years, with the first payment received 20 years and 1 month from now. Second, he would like to purchase a cabin in Rivendell in 10 years at an estimated cost of  $100,000. Third, after he passes on at the end of the 20 years of withdrawals, he would like to leave an inheritance of $100,000 to  Chani, his girlfriend. He can afford to save $3,000 per month for the next 10 years. If he can earn an 10 percent EAR before he retires and an 9 percent EAR after he retires, how much will he have to save each month in years 11 through 20?  Note:  To provide coherence and organization to your work, arrange your work  for this question as follows:  Step 1: Convert both EARs to annual nominal rates  Step 2: Compute the amount needed at the 20-year mark from now Step 3: Compute the amount in hand at the 10-year mark from now Step 4: Compute the amount still required at the 10-year mark  Step 5: Compute the shortage/surplus, if any, and compute the required monthly savings between years 11 through 20.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section2.7: Decisions Involving The Time Value Of Money
Problem 16P
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Paul Atreides wants to save money to meet three objectives. First, he would like to be able to retire 20 years from now with retirement income of $15,000 per month for 20 years, with the first payment received 20 years and 1 month from now. Second, he would like to purchase a cabin in Rivendell in 10 years at an estimated cost of  $100,000. Third, after he passes on at the end of the 20 years of withdrawals, he would like to leave an inheritance of $100,000 to  Chani, his girlfriend. He can afford to save $3,000 per month for the next 10 years. If he can earn an 10 percent EAR before he retires and an 9 percent EAR after he retires, how much will he have to save each month in years 11 through 20? 

Note: 

To provide coherence and organization to your work, arrange your work  for this question as follows: 

Step 1: Convert both EARs to annual nominal rates 

Step 2: Compute the amount needed at the 20-year mark from now Step 3: Compute the amount in hand at the 10-year mark from now Step 4: Compute the amount still required at the 10-year mark 

Step 5: Compute the shortage/surplus, if any, and compute the required monthly savings between years 11 through 20. 

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