Term is also sold in many variations with lengths as short as one year, but also in nearly every increment of five up through 30-year term.

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This time, the issue is whether to exercise the option it created in 1994 by building a second increment of 20 B-2 aircraft.

CENTERFORSECURITYPOLICY: Center For Security Policy

But teachers' unions have been hostile to the changes proposed by the government, arguing that the expectation of an annual increment, in place since the 1920s, provided an incentive to recruit graduates into teaching.

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To deviate from the structure of the market portfolio was assumed to involve assuming an extra increment of risk for no matching incremental improvement in reward.

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The biggest increment over the past 20 odd years has been in the ratio of corporate debts to GDP, which has soared to a staggering 134% of GDP.

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