In sum, savings surpluses are a policy variable, not a given.

总而言之，储蓄盈馀是一个政策变数，而非既定事实。

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The money supply is a policy variable that is controlled by the Fed.

货币供给是由美联储控制的政策变量。

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The discount rate was a policy variable set by the Fed and it was typically fifty basis points below the Federal Funds Rate.

贴现率是一个联邦可改变的政策，并且它比联邦资金利率通常，低五十个基本点。

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The discount rate was a policy variable set by the Fed and it was typically fifty basis points below the Federal Funds Rate.

贴现率是一个联邦可改变的政策,并且它比联邦资金利率通常,低五十个基本点。

耶鲁公开课 - 金融市场课程节选

There's something called "variable life," which refers to a life insurance policy where the policyholder can make decisions about the investment of the money in the whole life policy.

有种保单叫做"可变寿险",作为终身寿险的一种,投保人可以自主选择,在终身寿险上进行多少投资

耶鲁公开课 - 金融市场课程节选

Notably, Fed policy was not the only variable at play when it came to our currency.

FORBES: In 2008, Shades Of October 1987

There are many variations on the permanent life insurance policy, including whole life, universal life and variable universal life.

FORBES: Estate Tax Insurance

Central banks may enjoy their new powers, yet it could be argued that monetary policy is not well suited to this role, as its effects on the economy are felt only after long and variable lags.

ECONOMIST: Fiscal flexibility