Problem
Sales of hybrid cars are on the rise. The Toyota Prius, while priced above comparable gasoline-only cars, is selling well. Other manufacturers are adding hybrids to their lines as well. What has been the cause of the rising sales of hybrids? Is this an increase in demand or an increase in quantity demanded?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.