How does the winterin the United Statesas described in the article Mild Winter Leaves Some Cold (that is, the winter of 2011-2012) compare to normal?

According to the article, who benefits and who loses because of this weather?

According to the book, what is the difference between systematic and unsystematic (company-specific) risk?

Doesweathercreate systematic or unsystematic risk for investors? If you answered that weather creates systematic risk, explain why you would not be able to diversify away weather-related risk in a portfolio. If you answered that weather creates unsystematic (company-specific) risk, explain how you would eliminate weather-related risk in a portfolio.