This makes sense because the stock, unlike the bond, has much more price upside, and in theory you give up steady income for potential price appreciation.

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No less than the noted bond king, Bill Gross of PIMCO, subscribes to this theory, so strong, in fact, that PIMCO has cut its holdings of government debt nearly to zero percent.

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In theory, such a huge increase in purchases should cause bond prices to rise and yields to fall.

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In theory, the new Basel III capital rules should be good news for bond investors since they will make banks safer, reducing the probability of default.

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And whether or not you buy into this theory, you do have to admit that stocks have handled the huge rise in bond yields pretty darn well lately.

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So in theory if cross-default or accelerated payment clauses were unexpectedly to turn up in bond documentation, the Greek parliament could legislate to make them null and void.

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Between them, they have developed computational methods to crunch the numbers involved in quantum theory in ways that allow chemists to make sense of the behaviour of atoms as they bond together to form molecules.

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As bond yields come up, they compete for investment dollars from other yield-heavy investments, so the theory goes.

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