Ten firms compete in a market to sell product X. The total sales of all firms selling the product are $1,500,000. Ranking the firms’ sales from highest to lowest, we find the top four firms’ sales to be $225,000, $195,000, $165,000, and $110,000, respectively. Calculate the four-firm concentration ratio in the market for product X.

One investigating company tracked all credit card purchase during 2012 and measured two variables: (1) the type of credit card used (visa, mastercard, american express, or discover), and (2) the amount (in dollars) of each purchase. identify the level of each variable measured.

The board of directors is the highest ranking body in a corporation, and the chairman of the board is the highest ranking individual. the ceo generally works under the board and its chairman, and the board generally has the authority to remove the ceo under certain conditions. the ceo, however, cannot remove the board, but he or she can endeavor to have the board voted out and a new board voted in should a conflict arise. it is possible for a person to simultaneously serve as ceo and chairman of the board, though many corporate control experts believe it is bad to vest both offices in the same person. true false

Which ranks these careers that employers are most likely to hire from the least to the greatest?