经济
补贴
技术变更
内生增长理论
生产(经济)
微观经济学
自由放任
自然资源经济学
技术变革
技术进步
公共经济学
宏观经济学
市场经济
生产力
人力资本
作者
Daron Acemoğlu,Philippe Aghion,Leonardo Bursztyn,David Hémous
标识
DOI:10.1257/aer.102.1.131
摘要
This paper introduces endogenous and directed technical change in a growth model with environmental constraints. The final good is produced from “dirty” and “clean” inputs. We show that: (i) when inputs are sufficiently substitutable, sustainable growth can be achieved with temporary taxes/subsidies that redirect innovation toward clean inputs; (ii) optimal policy involves both “carbon taxes” and research subsidies, avoiding excessive use of carbon taxes; (iii) delay in intervention is costly, as it later necessitates a longer transition phase with slow growth; and (iv) use of an exhaustible resource in dirty input production helps the switch to clean innovation under laissez-faire. (JEL O33, O44, Q30, Q54, Q56, Q58)
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