CARBON-ADJUSTED HOUSING PURCHASE VALUE INDEX: MEASURING THE TRADE-OFF BETWEEN GREEN PREMIUM AND LONG-TERM ENERGY SAVINGS
炭素調整済み住宅購入価値指数：グリーンプレミアムと長期エネルギー節約のトレードオフ測定 (AI 翻訳)
Hoang Van Thang, LUONG THI NHU QUYNH
🤖 gxceed AI 要約
日本語
本研究は炭素調整済み住宅購入価値指数（CAHPVI）を開発し、30プロジェクトのデータからグリーン志向プロジェクトが従来比で高いスコア（平均0.628 vs 0.494）を示すことを確認。エネルギー節約が最も高い重み（0.246）を持ち、適度なプレミアムと強力な省エネエビデンスを持つプロジェクトが高評価を得た。
English
This study develops a Carbon-Adjusted Housing Purchase Value Index (CAHPVI) to evaluate green premium versus long-term energy savings. Using data from 30 projects, green-oriented projects scored higher (0.628 vs 0.494). Energy savings had the highest weight (0.246), and projects with moderate premiums and strong energy-saving evidence ranked highest.
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
本手法は日本の住宅市場でも応用可能だが、SSBJ開示や有報でのグリーン住宅評価には直接関連しない。日本の住宅業界向けには、ライフサイクルCO2削減と資産価値の連携を示す参考事例となる。
In the global GX context
This index offers a practical tool for evaluating green housing value globally, especially in emerging markets. It contributes to the broader GX context by linking carbon benefits to real estate valuation, though it does not directly address TCFD/ISSB disclosure frameworks.
👥 読者別の含意
🔬研究者:Researchers can adopt the CAHPVI framework for further validation in other markets or integrate with broader carbon accounting models.
🏢実務担当者:Developers and homebuyers can use the index to assess whether green premiums are justified by energy savings and carbon benefits.
🏛政策担当者:Policymakers can use this index to design incentives for green housing that balance upfront costs with long-term benefits.
📄 Abstract（原文）
ABSTRACT Objectives: This study develops a Carbon-Adjusted Housing Purchase Value Index (CAHPVI) to evaluate whether the green premium paid for sustainable residential projects can be justified by long-term energy savings and carbon-related benefits. The paper aims to shift green housing evaluation from a static price comparison to a lifecycle purchase-value perspective. Methods: A composite-index approach was applied to a project-level dataset of 30 urban apartment projects, including 15 green-oriented and 15 conventional benchmark projects. The index integrates six dimensions: green premium, present value of energy savings, present value of carbon benefits, affordability pressure, operating cost, and green evidence disclosure. Indicators were normalized by benefit/cost direction, weighted using the Entropy-CRITIC method, and ranked through TOPSIS. Results: The findings show that green-oriented projects achieved a higher average CAHPVI score than conventional projects, with mean scores of 0.628 and 0.494, respectively. The average green premium was 8.36%, while the mean present value of energy savings reached VND 41.03 million per standardized unit. Energy savings received the highest final weight of 0.246, followed by affordability pressure at 0.224 and green premium at 0.213. Projects with moderate premiums and strong energy-saving evidence ranked highest, whereas high-premium projects with weak sustainability disclosure showed potential greenwashing risk. Conclusion: Sustainable housing value should be assessed through lifecycle financial and environmental benefits rather than upfront price alone. The CAHPVI provides a practical tool for homebuyers, developers, and policymakers to compare residential projects under a carbon adjusted and sustainability-oriented framework.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5281/zenodo.20266223first seen 2026-05-20 05:04:11
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