"The Best Little Monopoly in America," https://scholar.harvard.edu/barro/files/02_1209_monopoly_bw.pdfRobert Barro considers the U.S. Postal Service, OPEC, Microsoft, the NCAA, and the International Longshore and Warehouse Union and deems one of these groups to be the most effective monopoly in America.

Forbes used to create a Monopoly Index for U.S. firms. In this 2010 article "The Next Seven Monopolies," http://www.businessinsider.com/the-next-7-american-monopolies-2010-11?op=1they list what they believe to be the up-and-coming monopolies.

What firms or organizations would you put on Barro's list this year? Which of the companies listed by Forbes would you characterize as monopolies today? What characteristics or achievements of each firm or organization on your list would make it a strong candidate for monopoly of the year? What firm or firms from any list would you REMOVE? Can you think of other companies that have gained "monopoly power"?