The bottom line with Krugman's analysis is that he believes that current expenditures must be subsidized with negative interest rates if aggregate demand is to increase.

克鲁格曼分析的底线是他认为如果累计总需求增加，经常支出必须要通过负利率来补贴。

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And instead of a drag on the bottom line, Roomba has subsidized the development of what Angle hopes is the next big step for iRobot: health care.

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Maybe they would like to be first in line for a low-cost loan, or at least to secure a spot ahead of subsidized Canadian competitors.

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