Opportunity Cost

The winter storms continue to hit the DC area.  I am eagerly anticipating the third, yes I said THIRD storm which is expected to bring over a foot of snow to Washington DC and the surrounding areas.  As a result of the last storm which dropped over two feet of snow, our Microeconomics midterm was changed from an in-class midterm to a take-home, closed book exam.  One of the topics covered is opportunity cost....