The following data were taken from the 2013 annual reports of Biogen Idec, Inc., and Amgen Inc. Both companies are leaders in biotechnology. All dollar amounts are in mi l lions.

Required
a. For each company, compute the debt to assets ratio, return on assets ratio, and return on equity ratio.
b. Which company has the greatest level of financial risk? Explain.
c. Which company appears to have managed its assets most efficiently? Explain.
d. Which company performed better from the perspective of the owners? Explain.

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Biogen Idec Amgen December 31,2013 December 31, 2013 Total assets Total liabilities Stockholders' equity Net income $11,863 3,242 8,621 1,862 $66,125 44,029 22,096 5,081