We need to create a self-sustaining cycle where people are spending, and companies are hiring, and our economy is growing.

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As Apple attracts more iPhone users through its superior App Store, it will encourage developers to create more applications, creating a self-sustaining cycle.

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The town of maybe a few hundred people is locked in a self-sustaining cycle of grief after a school bus slides off the road one morning, careens down a slope, and sinks in an icy lake.

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As Fed Chairman Ben Bernanke has made clear, a housing recovery is a prerequisite to any sort of self-sustaining economic cycle.

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