Any time government tries to force one variable within a free market to a certain value or to move in a certain direction, it destabilizes every other variable.

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For instance, Apple offers customers up to 18 months interest-free on purchases on a card from Barclaycard US. But if you don't pay off that specific purchase in the interest-free period, you'll face a variable annual percentage rate that's currently about 23%, according to the Apple website.

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We are also encouraged by URS' strong free cash flow generation, which is a result of its variable-cost focus.

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Given a free hand in the design, his team developed a continuously variable transmission system that allows the petrol engine and electric motor to work separately or in tandem.

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The Free Fighter includes four fully customizable macro buttons for quick access to combos, as well as two variable speed turbo buttons for fast, slow or user-created tap speed.

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