There are whole bunch supply-side constraints that seem to be hitting the copper industry.

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The same caveats apply to another of the supply-side constraints on Australia's economy: education.

ECONOMIST: The limits to growth

It explains that rapidly rising resource prices will result from by the increasing demands of the growing global middle class against supply side constraints.

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Recent declines in output in both Japan and Germany are largely due to inadequate demand caused by overly tight monetary policy, and not to supply-side constraints imposed by the failings of their models.

ECONOMIST: Glittering economic prizes

Neither side understands very well the political and institutional constraints in the other's system, and both are inclined to assume the other is more strategic, centralized and internally disciplined than it is.

CNN: U.S., China must overcome mutual distrust

As a non-consequential side benefit, it blocks rivals from using its idle production facilities when they face their own supply constraints.

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