You just won the Florida lottery. To receive your winnings, you must select one of the two following choices: You can receive $1,000,000 a year at the end of each of the next 30 years; OR You can receive a one time payment of $15,000,000 today. Assume that the current interest rate is 5 %. Which option is most valuable?
Case 1:
Periodic payments = P = $ 1,000,000 per year
No. of years = n = no. of periodic payments = 30
Interest rate = r = 5 % p.a. = 0.05 per annum per $
This scenario is nothing but annuity
So,
Present value of annuity = PV = P x ((1 - (1 / (1 + r) ^ n)) / r) = 1,000,000 * (( 1- ( 1+0.05)-30) )/ 0.05
= $ 153,724,510.2
Therefore, Present value of the Annuity = $ 15,372,451.02
Case 2:
Present value if accepted the payment = $ 15,000,000
Since, Present value of case 1 ( i.e., present value of annuity) is greater than Present value of case 2
i.e, 15,372,451.02 > 15,000,000
Therefore, Accept the case 1
Answer: Accept $1,000,000 a year at the end of each of the next 30 years;
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