Comparative Effectiveness of Carbon Pricing, Industrial Subsidies, and Innovation Support in Green New Deal Strategies: A Systematic Literature Review
グリーン・ニューディール戦略におけるカーボンプライシング、産業補助金、イノベーション支援の比較効果：系統的文献レビュー (AI 翻訳)
Beichen Chen
🤖 gxceed AI 要約
日本語
本論文は、PRISMA 2020プロトコルに基づき、カーボンプライシング、産業補助金（固定価格買取制度を含む）、公的イノベーション支援の3つの政策手段の効果を147の定量研究から系統的にレビューした。カーボンプライシングは短中期的に最も低い単位削減コストを達成し、産業補助金は技術展開を加速するが初期コストが高い。イノベーション支援は特許増加に寄与するがタイムラグが長い。最適なシーケンスによる組み合わせが単一手段を凌駕する。
English
This systematic literature review of 147 quantitative studies (1990-2025) compares carbon pricing, industrial subsidies (incl. feed-in tariffs), and public innovation support in Green New Deal frameworks. Carbon pricing achieves the lowest short- to medium-term abatement costs with minimal macroeconomic disruption. Industrial subsidies accelerate deployment with learning-by-doing cost reductions (~20% per doubling of capacity) but early costs exceed $100/tCO2. Innovation support boosts high-quality patents by 10-20% with long time lags. The instruments are complementary, and an optimally sequenced combination outperforms any single approach.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
本レビューは、日本のGX政策設計に直接的な示唆を提供する。カーボンプライシング（炭素税・排出量取引）の導入効果、再エネ補助金（FIT/FIP）のコスト低減効果、イノベーション支援（グリーンイノベーション基金）の特許効果を統合的に比較しており、SSBJやGXリーグの政策パッケージ設計に活用できる。特に、3手段の相補性と最適シーケンスの重要性は、日本の現行政策（GX推進法・成長志向型カーボンプライシング構想）の評価・改善に有用である。
In the global GX context
This review provides a quantitative evidence base for designing Green New Deal policy packages globally. It supports the integration of carbon pricing (e.g., EU ETS, China ETS), industrial subsidies (e.g., US IRA), and innovation support (e.g., Horizon Europe). The finding that instruments are complementary and best sequenced is directly relevant to transition finance frameworks and ISSB-aligned disclosure of climate transition plans. Policymakers can use the standardized effect sizes to calibrate national abatement cost benchmarks.
👥 読者別の含意
🔬研究者:This review offers standardized effect sizes and a meta-analytic framework for comparing decarbonization policy instruments, useful for policy modeling and further meta-analysis.
🏢実務担当者:Corporate sustainability teams can benchmark abatement costs of different policy mechanisms to inform scenario analysis and transition planning for TCFD/ISSB disclosures.
🏛政策担当者:The quantitative comparison of carbon pricing, subsidies, and innovation support provides evidence for optimally sequencing Green New Deal policies to minimize costs and maximize innovation.
📄 Abstract（原文）
The accelerating climate emergency has prompted governments worldwide to adopt comprehensive Green New Deal strategies that combine multiple policy instruments to deliver deep decarbonization while sustaining economic growth. This study conducts a systematic literature review, structured around the PRISMA 2020 protocol, of three core policy instruments central to Green New Deal frameworks: carbon pricing, industrial subsidies including feed in tariffs, and public innovation support. Drawing on 147 quantitative studies published between 1990 and 2025 and indexed in Web of Science, Scopus, and EconLit, we standardize effect sizes using semi elasticity coefficients, abatement cost in dollars per ton of carbon dioxide, and patent based innovation indicators. Results show that carbon pricing achieves the lowest unit abatement cost in the short to medium term, with semi elasticities clustered between 0.003 and 0.008 per dollar per ton increase and minimal macroeconomic disruption. Industrial subsidies and feed in tariffs accelerate technology deployment and trigger learning by doing cost reductions of roughly 20 percent per doubling of cumulative capacity, although early stage abatement costs frequently exceed 100 dollars per ton. Public innovation support increases high quality clean technology patents by 10 to 20 percent but exhibits long temporal lags. The three instruments are complementary rather than substitutable, and an optimally sequenced combination dominates any single instrument approach. The review provides a quantitative evidence base to support the design of effective Green New Deal policy packages.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.62051/pze25y19first seen 2026-06-16 05:41:56
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