Legal Monopoly

What is a Legal Monopoly?  For some products, the government erects barriers to entry by prohibiting or limiting competition. Under U.S. law, no organization but the U.S. Postal Service is legally allowed to deliver first-class mail. Many states or cities have laws or...

Natural Monopoly

What is a Natural Monopoly? Economies of scale can combine with the size of the market to limit competition. This arises when the market has room for only one producer. If a second firm attempts to enter the market at a smaller size then its average costs will be...