Systematic review of the outcomes and trade-offs of ten types of decarbonization policy instruments
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The literature evaluating the technical and socio-economic outcomes of policy instruments used to support the transition to low-carbon economies is neither easily accessible nor comparable, and often provides conflicting results. We develop and implement a framework to systematically review and synthesize the impact of ten types of decarbonisation policy instruments on seven technical and socio-economic outcomes. Our systematic review shows that the selected types of regulatory and economic and financial instruments are generally associated with positive impacts on environmental, technological, and innovation outcomes. Several instruments are often associated with short-term negative impacts on competitiveness and distributional outcomes. We discuss how these trade-offs can be reduced or transformed into co-benefits by designing R&D and government procurement, deployment policies, carbon pricing and trading. We show how specific design features can promote competitiveness and reduce negative distributional impacts, particularly for small firms. An online interactive Decarbonisation Policy Evaluation Tool allows further analysis of the evidence.
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1758-6798