In order to begin listing options on a company, exchanges must first propose the terms of the options and file for approval with Options Clearing Corp.

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In order to push this model, Taobao waived all listing and transaction fees, making money just from advertising.

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Whitelisting allows only approved files to run, offering significantly more protection for embedded systems than traditional black listing tactics, which depend on continuous updates of signature files in order to remain current.

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That is, over the past generation the most selective schools in the country got into the habit of listing a high sticker price and then discounting that price as needed in order to fill a class.

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The Sarbanes-Oxley legislation, passed after the collapse of Enron in order to stiffen up corporate governance, has put off foreign companies from listing there.

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