This study analyzes household energy demand in South Korea by constructing micro-level Stone-Lewbel price indices from 2019-2024 HIES microdata and quarterly CPI components and embedding them in an Exact Affine Stone Index(EASI) demand system that joi...
This study analyzes household energy demand in South Korea by constructing micro-level Stone-Lewbel price indices from 2019-2024 HIES microdata and quarterly CPI components and embedding them in an Exact Affine Stone Index(EASI) demand system that jointly models five house fuels-electricity, city gas, LPG, kerosene, and district heating. A Shonkwiler-Yen two step correction addresses zero expenditures. The model delivers compensated and uncompensated price elasticities and expenditure elasticities. Own-price elasticities are negative and mostly inelastic, while cross-price terms show clear substitution toward electricity when prices of alternative heating fuels rise. Budget shares differ systematically by dwelling type and urban-rural status, implying uneven incidence of price reforms: higher electricity or district heating tariffs burden urban apartments, whereas carbon or fuel taxes weigh more on rural and detached households. These results support targeted rebates and tariffs, and efficiency measures to ensure equitable energy pricing.