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Carbon Accounting and Reporting in Australia: Regulatory Transition, Market Evidence, and Statistical Analysis

オーストラリアにおける炭素会計と報告:規制移行、市場エビデンス、統計分析 (AI 翻訳)

Sumera Aslam

Journal of Accounting and Finance in Emerging Economies📚 査読済 / ジャーナル2026-06-30#炭素会計経営インパクト: 調達リスク対象セクター: cross_sector
DOI: 10.26710/jafee.v12i2.3858
原典: https://publishing.globalcsrc.org/ojs/index.php/jafee/article/download/3858/2070
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🤖 gxceed AI 要約

日本語

本論文は、オーストラリアの任意の炭素開示から強制の持続可能性報告への移行を検討し、NGERS・セーフガードメカニズムとAASB S1/S2(2025年1月から段階導入)を分析。セーフガード対象施設の排出量はFY2023-24で約1.9%減少し、遵守率は98%。資本市場では炭素リスクが価格付けされ、炭素排出量の1標準偏差増加で負債コストが38〜62ベーシスポイント上昇。ASX300のTCFD整合は48%で、米欧(83%、89%)に遅れ。二重の排出会計枠組みによる移行期の負担やScope 3測定の課題を指摘。

English

This paper reviews Australia's shift from voluntary to mandatory sustainability reporting, analyzing NGERS, Safeguard Mechanism, and AASB S1/S2 (phased from Jan 2025). Facility emissions under Safeguard fell ~1.9% (FY2023-24) with 98% compliance. Carbon risk is priced in debt and equity markets: a one-SD increase in carbon raises debt costs by 38-62 bps. TCFD alignment among ASX300 is 48% vs 83% (S&P 500) and 89% (Stoxx 600). It highlights transition burdens from dual accounting frameworks and Scope 3 measurement gaps.

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

日本ではSSBJ基準の適用が始まり、有報でのサステナビリティ開示が義務化される中、豪州の強制開示移行の実証は示唆に富む。特に、規制枠組みの二重化によるコンプライアンス負担や、炭素リスクの資本市場での価格付けは、日本の投資家対応や開示実務に参考となる。

In the global GX context

As ISSB-aligned standards (AASB S1/S2) roll out in Australia, this paper provides early evidence on mandatory disclosure impacts, including market pricing of carbon risk and compliance rates. It offers a template for other jurisdictions transitioning from voluntary to mandatory regimes, highlighting the need to reconcile overlapping frameworks and improve Scope 3 measurement.

👥 読者別の含意

🔬研究者:Provides empirical evidence on carbon risk pricing and disclosure quality under a mandatory regime, useful for comparative studies.

🏢実務担当者:Highlights compliance burdens and the need to align Safeguard Mechanism targets with AASB S2 disclosures.

🏛政策担当者:Informs design of mandatory disclosure frameworks, emphasizing the importance of reconciling multiple accounting standards.

📄 Abstract(原文)

Purpose: This paper reviews Australia's transition from voluntary corporate carbon disclosure toward an arranged, compulsory sustainability reporting management, and the empirical evidence combines. The existence of Australia's long-standing National Greenhouse and Energy Reporting scheme and Safeguard Mechanism with the newer Australian Sustainability Reporting Standards, AASB S1 and AASB S2 examines, which commence phasing in from January 2025. Methodology: The paper gets the form of a comprehensive statistical review. The administrative and regulatory data collects and combines, including figures from Clean Energy Regulatory compliance and observations of ASIC at beginning on the first mandatory sustainability reports. Recent Australian research shows that studies of carbon risk pricing in debt and equity markets based on regression and a survey based on investor behavior experiment. Findings: It is declining modestly facility level emissions under the Safeguard Mechanism, falling by roughly 1.9% between FY2023 and FY2024 while compliance rate is 98%. Capital markets already face price carbon related risk in both equity and loan markets due to high emitting organizations. A one standard deviation increase in carbon can raise the cost of debt by 38 to 62 basis line, and a broader carbon risk profile can carry a statistically huge penalty. Voluntary disclosure quality among ASX-listed companies continues to lag comparable US and European benchmarks, with only 48% of ASX 300 firms showing TCFD alignment compared with 83% and 89% for the S&P 500 and Stoxx 600 respectively. Implications: A computable compliance burden is created due to implication of two only partially reconciled emissions accounting frameworks during the transition period. Therefore, gaps  remain in sector coverage, assurance ability, and Scope 3 measurement. Entities should require the Safeguard Mechanism which is legally mandated targets for practice to be treated as disclosable climate related targets under AASB S2. The mandatory regime creates an opportunity to retest existing valuation and cost-of-debt findings for research when comparable disclosure becomes universal rather than voluntary and self-selected.

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