Price indexing involves changing the fundamental Social Security benefit formula for calculating the future benefits workers would receive at retirement (not the post-retirement Social Security COLA).

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The BranchIt corporate social graph is kept current through the continual indexing of new emails, calendar requests, phone calls, etc.

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On the other hand, it's clear price-indexing would also go a long way toward fixing Social Security's financial problems.

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Vitrue began developing an indexing algorithm after marketers asked Bradford how their brands were faring on social networking sites.

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