If we really invest in the ecosystem, it becomes this positive feedback loop.

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The entire system would go into a destructive positive feedback loop and crash.

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Robust economic growth--3.3% or better, over multiple years--sustains a positive feedback loop.

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In this context, a network effect is a positive feedback loop whereby platforms with stronger ecosystem of developers, content and service providers attract more customers.

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And that creates the positive feedback loop that will generate customer buzz, boost brand value, and eventually allow RIM to raise the price on future generations of PlayBooks.

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Rather than abandon the theory, scientists fell back on the notion that the data jibed with the possibility that rising carbon dioxide levels were reinforcing the warming trend in what's called a positive feedback loop.

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Japanese financial stocks, as especially the megabanks, have been in a positive feedback loop of balance sheet and income statement translation gains from a weaker yen and the prospect of increased loan volumes and interest earnings from higher domestic loan demand.

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