Suppose Beta, Ltd., just issued a dividend of $2.10 per share on its common stock.

on its common stock. The Company paid dividends of $2.15, $2.34, $2.75, $3.15,

per share in the last four years.

If the stock currently sells for $56, what is your best estimate of the companys cost of equity capital

using the geometric average growth rate?

what is your best estimate of the companys cost of equity capital
using the arithmetic average growth rate in dividends?