The Atlanta credit bureau Equifax Inc. and the McLean, Va., wealth analysis company IXI Corp. have developed a way for financial institutions to examine not just how deep customers' pockets are, but also how likely they are to actually spend their money.

The two companies said Monday that IXI, which tracks almost $10 trillion, or about 42%, of the country's investment assets, agreed to provide Equifax's financial institution clients with information about the average wealth in a consumer's neighborhood.

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