Issue #20 - Equivalent interest rate to earn equal as EPS of stock

Referring to previous issue that commented on a relatively high interest rate of a riskless fixed deposit in order to receive equal earnings by owning stocks, the formula to calculate the rate is presented below.

R = ((g/PE) * ((g^k-1)/(g-1)) + 1)^(1/k) - 1

where:
g = 1 + G

R = equivalent interest rate of riskless fixed deposit
G = growth rate of EPS of stock
k = number of years projection ahead
PE = current price earning ratio

Note that 1/PE is the initial rate of return discussed in Issue #17.