Growth technology companies typically do not issue dividends to their shareholders. Their argument is that their IRR is much higher than the historical Wall Street growth indices, and their earning are better invested into new products. If we assume that share prices grow at the same rate as a companys IRR, how many years would it take to double your share price if you invested in a growth companys shares? Each participant should have a unique set of IRR (i%) and number of years (n) values to enter into the discussion board for doubling your investment.