| 来源类型 | FEEM working papers "Note di lavoro" series
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| 规范类型 | 论文
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| The Environment and Directed Technical Change |
| Daron Acemoglu; Philippe Aghion; Leonardo Bursztyn; David Hemous
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| 发表日期 | 2010
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| 出处 | Climate Change and Sustainable Development
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| 出版年 | 2010
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| 语种 | 英语
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| 摘要 | This paper introduces endogenous and directed technical change in a growth model with environmental constraints. A unique final good is produced by combining inputs from two sectors. One of these sectors uses "dirty" machines and thus creates environmental degradation. Research can be directed to improving the technology of machines in either sector. We characterize dynamic tax policies that achieve sustainable growth or maximize intertemporal welfare. We show that: (i) in the case where the inputs are sufficiently substitutable, sustainable long-run growth can be achieved with temporary taxation of dirty innovation and production; (ii) optimal policy involves both “carbon taxes” and research subsidies, so that excessive use of carbon taxes is avoided; (iii) delay in intervention is costly: the sooner and the stronger is the policy response, the shorter is the slow growth transition phase; (iv) the use of an exhaustible resource in dirty input production helps the switch to clean innovation under laissez-faire when the two inputs are substitutes. Under reasonable parameter values and with sufficient substitutability between inputs, it is optimal to redirect technical change towards clean technologies immediately and optimal environmental regulation need not reduce long-run growth. |
| 特色分类 | O30;O31;O33;C65
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| 关键词 | Environment
Exhaustible Resources
Directed Technological Change
Innovation
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| URL | https://www.feem.it/en/publications/feem-working-papers-note-di-lavoro-series/the-environment-and-directed-technical-change/
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| 来源智库 | Fondazione Eni Enrico Mattei (Italy)
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/117874
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推荐引用方式
GB/T 7714 |
Daron Acemoglu,Philippe Aghion,Leonardo Bursztyn,et al. The Environment and Directed Technical Change. 2010.
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20107131617124NDL2010-093.pdf
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