Two chemical corporations, both equity financed with no debt, are essentially in the same business. However, whereas one of the corporations has a stable earnings and dividend record, paying out all its earnings in dividends, the other is a growth stock increasing its earnings and dividends annually through a different management strategy. The current dividend is $5 per share for both corporations. The stable corporation's stock trades for $40 per share and the price of the growth stock is $50.

Estimate the investors' required rate of return on these stocks and the steady future growth rate of the growing corporation as perceived by the market.