The effect of such complex instruments was to paint a flattering picture of Parmalat's financial health.

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Pain is notoriously responsive to placebo effect and some researchers believe surgery and other complex interventions may produce may produce the biggest placebo improvement of all.

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To date, no drug has been approved in its leaf form because plants contain a complex composition of compounds with uncertain pharmacologies, metabolisms, side-effect profiles, toxicologies, drug interactions, and no control of relative concentrations.

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But in the absence of actual evidence to that effect, my bias is that cancer is too individualized and too complex a process to believe that even the most sophisticated algorithms can provide a technologically-accelerated shortcut to optimal cancer care.

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The effect of a falling euro on the prices that Americans pay for European goods is a little more complex.

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