Representatives of these institutions work hard to improve their bottom line by lowering costs.

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Heading north from Tokyo Station, the Yamanote Line traces the gradual lowering of the skyline though Kanda, Akihabara and Okachimachi to Ueno.

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The story spends extensive time on deciphering particular bills, using agents to get line items changed, and lowering the per-item cost.

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Investing in kids' health now and lowering that percentage could save all health insurance companies money down the line.

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Wal-Mart's revenue growth line is so strong, the company is thinking of lowering prices further rather than increase gross margins.

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