The way that an international business addresses these debates can make the difference between superior and inferior performance.

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"Even if cloning begins with a benign purpose, it could lead to scientific categories of superior and inferior people, " said Rep. Cliff Stearns, a Republican from Florida.

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Economists call the things that we spend larger portions of our income on as we get more income superior goods, those that stay static as a portion normal ones and those that shrink as a percentage inferior.

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