Answer:
$10,500
Explanation:
Cost of equity = risk free rate+beta*(expected return on market - risk free rate)
Now beta is taken as 0,
risk free rate = 6% and market return = 20% (assumed).
cost of equity as calculated by you = 6%+0*(20%-6%) = 6%. value of firm = perpetual cash flow/cost of equity = $900/0.06 = $15,000
However, beta is 1, so actual cost of equity will be = 6%+1*(20%-6%) = 6%+14% = 20%
So, value of firm, actually, will be = 900/0.2 = $4,500.
So the amount that you will be paying more = value calculated with 0 beta - value calculated with 1 beta
= 15,000 - 4,500 = $10,500.