Let us suppose that the market size is 90,000 for a product with innovation rate 0.018 and imitation rate of 0.25, determine the total number of users during time period 0.?
Pls show me how to calculate by step
Total number of potential buyers is say m which is given here as 90000
Innovation rate, p = 0.018
Imitation rate, q = 0.25
The total number of users at any given time t is given by N(t) = m x (1- e^(-(p+q)*t)) /(1+(q/p)*e^(-(p+q)*t)
e^(-(p+q)*t) = e^(-(0.018+0.25)*t) = e^(-0.268*t)
q/p = 0.25/0.018 = 13.889
Therefore, N(t) = 90000 x (1-e^(-0.268*t))/(1+13.889*e^(-0.268*t))
Now suppose we want to estimate the total number of users at say t = 0.5
Then N(t) = 90000 *(1-e^(-0.138)) / (1+13.889*e^(-0.138))
i.e. N(t) = 90000 *(1-0.871)/( 1+13.889*0.871) = 90000* 0.129/ (1+ 12.098) = 11610/ 13.098 = ~886 users at t= 0.5
Let us suppose that the market size is 90,000 for a product with innovation rate 0.018...
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