Primary Energy Demand in Korea: Substitution and Structural Change
韓国における一次エネルギー需要：代替と構造変化 (AI 翻訳)
Ji-Whan Kim, Yoon-Kyung Kim
🤖 gxceed AI 要約
日本語
韓国の一次エネルギー需要システムをLA-AIDSモデルで推定。2000-2021年の四半期データを用い、石炭、原油、天然ガス等の価格弾力性を分析。世界金融危機前後で構造変化を確認し、原油の価格感応度が上昇、石炭と天然ガスは低下した。政策評価に時間変化を考慮すべきと提起。
English
This study estimates primary energy demand in Korea using LA-AIDS models with quarterly data from 2000-2021. It finds structural changes around the global financial crisis, making crude oil more price-sensitive while coal and natural gas become less responsive. Cross-price substitutions also weaken, indicating time-varying input adjustments important for energy policy.
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
本論文は韓国の一次エネルギー投入構造の経時変化を実証。日本のエネルギー政策（特にLNG・石炭火力の位置づけ）を考える上でも、価格弾力性の非定常性は重要。ただし、日本のGX政策（GX推進法・炭素価格）への直接示唆は限定的。
In the global GX context
This paper provides empirical evidence on structural changes in energy demand for Korea, a highly import-dependent economy. For global energy transition scholars, it underscores the importance of non-constant elasticities in policy design. The methodology can be applied to other countries, but the findings are specific to Korea's energy mix.
👥 読者別の含意
🔬研究者:Offers empirical evidence on time-varying substitution elasticities in a major energy import economy.
🏛政策担当者:Highlights that energy demand responsiveness changes over time, affecting the effectiveness of carbon pricing or tariff policies.
📄 Abstract（原文）
International energy price changes can lead energy-importing economies to adjust their input factor choices, and Korea provides a useful case given its very high dependence on imported primary energies. This study estimates a primary energy input-demand system for Korea using quarterly data from 2000 to 2021, covering coal; crude oil; natural gas; labor; and others, including non-primary energy inputs. Our analysis uses LA-AIDS specifications. Breakpoint unit-root and cointegration tests support structural change around the global financial crisis, and this shift is incorporated through period-specific parameters within a unified demand system. The compensated elasticities indicate that crude oil becomes more price sensitive after the break, while coal and natural gas become less responsive to their own prices. Cross-price relationships also change, with weaker substitution among the primary energies and greater substitution between crude oil and others. These findings suggest that the ability to adjust inputs and the economic effects of international price changes can vary over time, which should be taken into account in energy policy evaluation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/en19081980first seen 2026-05-15 16:59:48
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