The leverage of demographic dynamics on carbon dioxide emissions: does age structure matter?

The leverage of demographic dynamics on carbon dioxide emissions: does age structure matter?
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DOI:
10.1007/s13524-010-0004-1
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发表时间:
2011-02
期刊:
影响因子:
3.5
通讯作者:
Zagheni, Emilio
Zagheni, Emilio
中科院分区:
法学1区
文献类型:
--
作者:
Zagheni, Emilio

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本文为研究人口年龄结构变化对二氧化碳(CO2)排放的影响提供了方法论贡献。首先,我提出将 IPAT 方程推广到具有年龄结构人口的多部门经济,并讨论在稳定人口理论的背景下可以获得的见解。其次,我建议建立一个家庭消费统计模型,作为家庭规模和年龄结构的函数,以定量评估能源密集型商品消费的规模经济程度,并估计能源密集型商品消费和二氧化碳排放的特定年龄特征。第三,我使用美国的数据来说明方法。分析表明,人均二氧化碳排放量随着年龄的增长而增加,直到60多岁,然后排放量趋于减少。在其他条件不变的情况下,未来四十年美国人口年龄分布的预期变化可能会对二氧化碳排放产生微小但明显的积极影响。
This article provides a methodological contribution to the study of the effect of changes in population age structure on carbon dioxide (CO2) emissions. First, I propose a generalization of the IPAT equation to a multisector economy with an age-structured population and discuss the insights that can be obtained in the context of stable population theory. Second, I suggest a statistical model of household consumption as a function of household size and age structure to quantitatively evaluate the extent of economies of scale in consumption of energy-intensive goods, and to estimate age-specific profiles of consumption of energy-intensive goods and of CO2 emissions. Third, I offer an illustration of the methodologies using data for the United States. The analysis shows that per-capita CO2 emissions increase with age until the individual is in his or her 60s, and then emissions tend to decrease. Holding everything else constant, the expected change in U.S. population age distribution during the next four decades is likely to have a small, but noticeable, positive impact on CO2 emissions.
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