In a recent survey, “Fiscal Policy for Economic Growth,” I concluded that short-run multipliers – the total change in economic activity resulting from higher government spending – could theoretically be as large as two when the central bank has reduced its target interest rate to zero. In other words, one dollar spent by the government could boost GDP by two dollars in the very short run.
最最新调查报告《旨在经济增长的财政政策》（Fiscal Policy for Economic Growth）中，我推论道，短期乘数——由更高的政府支出带来的经济活动的总体变化——在理论上可以达到2，如果央行将其政策利率降低到零的话。换句话说，政府所花的1美元可以在极短期内让GDP增加2美元。