That became the model for every transaction that followed.

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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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The harbor masters were data producers with a business model that excluded many potential users because the transaction costs were too high to be worthwhile.

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Under the traditional price disclosed model, the company earns a commission on every transaction made on its website.

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Meanwhile, French Green MEP Sandrine Belier said the EU must push for "a new model of development" to come out of the crisis, including a financial transaction tax and green taxation.

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In the new model of advertising, corporations will pay operators for access to individual customers on a transaction basis.

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This "originate-to-distribute" model gave lenders (and, thus, mortgage borrowers) greater access to capital markets, lowered transaction costs, and allowed risk to be shared more widely.

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