The following table shows the market shares during the first three months of 2015 for companies in the U.S. personal computer (PC) market, which includes desk-based PCs and mobile PCs, such as mini-notebooks, but not tablet computers, such as iPads:
Company Market Share
Hewlett-Packard.....................................26%
Dell.......................................................23
Apple.....................................................12
Lenovo...................................................12
ASUS.....................................................7
Others....................................................20
Use the information in the section "The Department of Justice and FTC Merger Guidelines," which begins on page 518, to predict whether the Department of Justice and the Federal Trade Commission would be likely to oppose a merger between any of the five firms listed in the table. Assume that "Others" in the table consists of four firms, each of which has a 5 percent share of the market.