본문 내용으로 건더뛰기

KDI 경제정보센터

KDI 경제정보센터의 다양한
경제정책정보를 만나 보세요.

최신자료

How Effective Was the UK Carbon Tax?―A Machine Learning Approach to Policy Evaluation
IAEE 2019.11.14 원문보기
Carbon taxes are commonly seen as a rational policy response to climate change, but little is known about their performance from an ex-post perspective. This paper analyzes the emissions and cost impacts of the UK CPS, a carbon tax levied on all fossil-fired power plants. To overcome the problem of a missing control group, we propose a novel approach for policy evaluation which leverages economic theory and machine learning techniques for counterfactual prediction. Our results indicate that in the period 2013-2016 the CPS lowered emissions by 6.2 percent at an average cost of e18 per ton. We find substantial temporal heterogeneity in tax-induced impacts which stems from variation in relative fuel prices. An important implication for climate policy is that a higher carbon tax does not necessarily lead to higher emissions reductions or higher costs.
KDI 경제정보센터