Go to yahoo.marketguide.com and enter the ticker symbol AMGM for Amgen, a biotechnology company. Follow the “Ratio Comparison” link and find long-term debt-to-equity and total debt-to-equity ratios. How does Amgen compare to the industry, sector, and S&P 500 in these areas? Now answer the same question for Edison International (EIX), the parent company of Southern California Edison, a utility company. How do the capital structures of Amgen and Edison International compare? Can you think of possible explanations for the difference between these two companies?