방법 비교

	Input-Output Life Cycle Assessment	전 과정 평가 (Life Cycle Assessment, LCA)
분야	경제학	지속가능성
계열	Process / pipeline	Process / pipeline
기원 연도	2006	2009
창시자	Hendrickson, Lave & Matthews (building on Leontief)	ISO 14040 framework; Finnveden et al.
유형	Input-output-based environmental life-cycle assessment	Environmental impact accounting pipeline
원전	Hendrickson, C., Lave, L. B., & Matthews, H. S. (2006). Environmental Life Cycle Assessment of Goods and Services: An Input-Output Approach. RFF Press. ISBN: 9781933115245	Finnveden, G., et al. (2009). Recent developments in life cycle assessment. Journal of Environmental Management, 91(1), 1–21.
별칭	IO-LCA, Economic Input-Output LCA, EIO-LCA, Hybrid Life Cycle Assessment	Life Cycle Analysis, Cradle-to-Grave Analysis, Ecobalance, Yaşam Döngüsü Değerlendirmesi
관련	4	3
요약	Input-output life cycle assessment (IO-LCA) estimates the environmental burdens of a product or service over its life cycle by representing it as a unit of final demand within an environmentally extended input-output model. Rather than mapping individual processes, it leverages the Leontief inverse to capture the complete, economy-wide supply chain at once, eliminating the truncation that limits process-based LCA. Popularized by Hendrickson, Lave, and Matthews, IO-LCA and its hybrid extensions are distinct from process LCA in scope, data, and the way system boundaries are drawn.	Life Cycle Assessment is a systematic, ISO-standardized methodology for quantifying the environmental impacts of a product, process, or service across its entire life span — from raw material extraction through production, use, and end-of-life disposal. Codified in ISO 14040 and ISO 14044, and comprehensively reviewed by Finnveden et al. (2009), LCA enables decision-makers to compare alternatives, identify environmental hotspots, and support eco-design, with applications spanning products, buildings, energy systems, and public policy.