If we compare and contrast the four market structures, it is evident that one market structure is most practiced and evident in the United States. It is the one that promotes and strives on competition. It is the one that has a WIDE array of products, choices and price range. In fact, it is currently the market structure that most industries fall under. For example, think about industries such as the fast food, clothing, furniture, restaurant, and grocery stores--- Which one?
Why is this market structure the most commonly practiced with all industries?