The bonds, which were introduced in 1956, are in units of one pound and are redeemable at face value on demand .

这种债券始于1956年，以一英镑为单位，需要时可按面值兑现。

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There is a third part to the value of Monsanto, its option on increased global food demand.

FORBES: Monsanto Looks Cheap As An Option On Global Food Crisis

This dynamic feeds off itself, because as secondary bonds rise on stronger buying, relative value for new issues improves, which makes pricing come down, which stimulates greater demand and so on.

FORBES: Connect

The root issue I have with gold is that its price is based not on the present value of future cash flows but supply and demand.

WSJ: The Experts: Should the Average Investor Buy Gold?