The following table shows the prices and yields on one and two-year zero coupon bonds issued by Firm A and Firm B.

	Firm A		Firm B
Years to Maturity	Price	YTM	Price	YTM
1	$92.857	7.692%	$90.476	10.526%
2	$85.986	7.842%	$85.986	7.842%

The one-year bonds either default or pay in full at maturity. The two-year bonds can default at the end of one year and the end of two years. Bond holders receive a recovery rate of 50% when the firms default. The one and two-year Treasury yields are 4%.

One of the firms gets 90% of its revenues from an established product and 10% of its revenues from a new unproven but potentially innovative product. The other firm gets 70% of its revenues from an established product and 30% of its revenues form a new but potentially innovative product. Which firm, Firm A or Firm B, is the firm with 90% of its revenues from the established product, and which firm, Firm A or Firm B, is the firm 70% of its revenues from the established product?

Fill in the following table by marking an X in the columns labelled Firm A and Firm B that match the firms bond yields with the established/unproven product mix.

Established Product	Unproven Product	Firm A	Firm B
90%	10%
70%	30%

Explain your answer.