身边的经济学·社会常识英语精读30篇(3)
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The Fiscal Multiplier in Practice: When Government Spending Actually Stimulates Growth
财政乘数的实际作用:政府支出如何真正拉动经济增长
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Fiscal multipliers measure how much total output rises when governments inject one dollar into the economy.财政乘数衡量政府向经济注入一美元时,总产出增加多少。
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Empirical estimates vary widely depending on debt levels, monetary policy space, and whether spending replaces or supplements private activity.实证估算差异很大,取决于债务水平、货币政策空间,以及支出是替代还是补充私人活动。
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During deep recessions with near-zero interest rates, multipliers often exceed one—meaning each public dollar generates more than a dollar in GDP.在利率接近零的深度衰退期,乘数常超过1——即每1美元公共支出带来的GDP增长超过1美元。
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But in full-employment conditions or high-debt environments, multipliers can fall below zero due to crowding-out effects on investment and consumption.但在充分就业或高债务环境下,由于挤出效应抑制投资和消费,乘数可能降至零以下。
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Targeted transfers to low-income households typically yield higher multipliers than corporate tax cuts because marginal propensity to consume is stronger.面向低收入家庭的定向转移支付通常比企业减税产生更高的乘数,因其边际消费倾向更强。
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Infrastructure projects face long lags and implementation bottlenecks, which dilute short-term stimulative impact despite long-term productivity gains.基础设施项目存在较长时滞和执行瓶颈,虽具长期生产率提升效果,却削弱短期刺激作用。
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Central bank independence matters: coordinated fiscal-monetary action boosts multiplier efficacy, while conflicting signals erode credibility and dampen response.央行独立性至关重要:财政与货币政策协同可提升乘数效力,而政策信号冲突则损害公信力、削弱响应效果。
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Cross-country evidence shows multipliers are not universal constants but context-dependent parameters shaped by institutional capacity and financial integration.跨国证据表明,乘数并非普适常数,而是受制度能力与金融一体化程度塑造的、依赖具体情境的参数。
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Even well-designed stimulus fails if it ignores structural constraints like labor shortages or supply-chain fragmentation in critical sectors.即便设计精良的刺激政策,若忽视劳动力短缺或关键行业供应链碎片化等结构性约束,仍会失效。
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Modern analysis treats the multiplier as a dynamic, nonlinear function—not a fixed coefficient embedded in textbook models.现代分析将乘数视为动态非线性函数,而非教科书模型中固定的系数。
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Its real-world relevance lies less in forecasting exact GDP bumps and more in calibrating policy timing, composition, and exit strategies.其现实意义不在于精确预测GDP增幅,而在于校准政策时机、构成及退出策略。
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Understanding this nuance helps citizens evaluate political claims about 'job-creating' budgets beyond headline spending figures.理解这一细微差别,有助于公众超越表面支出数字,理性评估政客关于‘创造就业’预算的政治主张。