Supply and Demand

http://www.politicalcartoons.com/cartoon/a691b702-b3c7-49d0-b0ad-785f62c60a0f.html

This political cartoon is an example of the concept of supply vs. demand. When the demand of a product, like gas, is high, the suppliers will increase the price because they want to make as much money as possible. In this particular example, the individual complaining about the high gas prices is actually a part of the reason these prices are so high. By driving a gas guzzler, he demands more gas than necessary, and the price of gas increases.