Overview: Theorists, what is McDonald's selling? The answer seems obvious - fast food! Most of us have partaken in their Big Mac burgers, fries, and other staples of the golden arches. Yet, that may be a big ol' LIE! That's right, Ronald McDonald may not be a clown selling some of our favorite indulgent quick serve foods. In fact, McDonald's may be in a completely different business all together. What is that business? You'll have to watch to find out!