An unlisted company wishes to obtain an estimated value for its shares in anticipation of a private sale of a large parcel of shares.

Relevant data for the unlisted company:

   • It has a residual dividend policy. 

   • It has earnings that are highly sensitive to underlying economic conditions.

   • It is a small business in a large industry where there are listed companies but there are none with a similar capital structure. 

The company intends to base valuations on the cost of equity of a proxy company after adjusting for any differences in capital structure where appropriate.

Which of the following methods is likely to give the most accurate equity value for this unlisted company?