Under this reasoning, the calm, resolute Mr Abhisit was right to defy mob rule and the demand for the dissolution of parliament, and wait to unveil an orderly, slow electoral timetable.

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Congestion pricing: The supply-and-demand rule in action, digitally.

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The Tara Duncan animated series, which was produced by Moonscoop, Disney and M6, is now also available to some 40 million digital cable television households in the U.S on the Kabillion Girls Rule Video on Demand channel.

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And regionwide, Hong Kong's plateauing demand is more the exception than the rule.

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Airline service cuts and rule changes have driven some of the increased wheelchair demand.

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Back to the first rule: in banking, the laws of supply and demand do not apply.

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They rule out trying to cut unemployment by giving the economy a Keynesian demand boost.

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