He argues that the negative correlation between the greenback and corporate earnings is clear, but the far stronger relationship is between profits and unit sales growth, which is more closely-tied to economic output.

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Analysts have so far had a good feeling about Obermann, whose strategy for tackling rivals on home soil has been to tighten up the relationship between the company's fixed line unit, T-Com, and its T-Mobile units.

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The media-modeling tool was kicked into high gear two years ago when Chad Jacoby, senior manager of Nissan's Business Intelligence Unit, used years of Nissan's consumer research to build a computer model comparing the relationship of each phase of their "purchase funnel"--from awareness to purchase consideration to a transaction--to the phase before it.

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