Their businesses are not dependent on entrenched profit models that center on value extraction from existing technology.

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The money generated will depend on the market value at the time of extraction and on licensing arrangements.

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One would expect that in purchasing or leasing land for resource extraction estimating the value of that land would introduce some risk.

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The cost of extraction would be higher than the value of the copper to us.

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It has adjusted UK gross value added, a measure of economic output, to exclude energy extraction and use, and also financial and insurance activities.

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