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INSIDER TRADING: The buying and selling of corporate stock or other financial instruments based on knowledge that is not widely available to the general public. Insider trading is most often undertaken by corporate executives or directors using information that they have acquired by working "inside" the company. Insider trading is illegal because it gives an unfair advantage to those on the inside. The president of a pharmaceutical company might be inclined to sell stock in the company using advanced information that the government is about to decline the patent application for a new drug.

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FOUR-FIRM CONCENTRATION RATIO

The proportion of total output in an industry produced by the four largest firms in an industry. This is one of two common concentration ratios. The other is the eight-firm concentration ratio. Another related measure is the Herfindahl index. The four-firm concentration ratio is commonly used to indicate the degree to which an industry is oligopolistic and the extent of market control held by the four largest firms in the industry.

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Today, you are likely to spend a great deal of time at a garage sale trying to buy either a T-shirt commemorating the second moon landing or a coffee cup commemorating Thor Heyerdahl's Pacific crossing aboard the Kon-Tiki. Be on the lookout for the happiest person in the room.
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Natural gas has no odor. The smell is added artificially so that leaks can be detected.
"Success is more a function of consistent common sense than it is of genius. "

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