A monopolist earns a profit of $50 million annually and will have the same indefinitely.
[tex] Present value of Perpetuity = D/r [/tex]
where D = Annuity ($50 million)
R = Rate of interest (10%)
[tex] Current Value = $50,000,000 ÷ 0.1
Current Value = $500,000,000 [/tex]
Therefore the current value is $500,000,000
Now, if another player enters the market.
[tex] Present Value = $50,000,000/(1+0.1)^1 + $25,000,000/0.1 [/tex]
[tex] Present Value = $45,454,545.45 + $250,000,000
Present Value = $295,454,545.45 [/tex]
Therefore, the present value of future period is $295,454,545.45