The asymmetric effect of household and commercial energy efficiency on U.S. energy-related CO2 emissions


USMAN O., TERHEMBA İOREMBER P., Ozkan O., Alola A. A.

Innovation and Green Development, cilt.4, sa.5, 2025 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 4 Sayı: 5
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.igd.2025.100293
  • Dergi Adı: Innovation and Green Development
  • Derginin Tarandığı İndeksler: Scopus
  • Anahtar Kelimeler: Commercial energy efficiency, Conditional quantiles, Energy-related CO2 emissions, Household energy efficiency, Quantile, Time-frequency, United States
  • İstanbul Ticaret Üniversitesi Adresli: Evet

Özet

As environmental threats intensify, policies that reduce carbon (CO2) emissions become essential for attaining a sustainable environment. This study examines the asymmetric effect of household and commercial energy efficiency on energy-related carbon emissions in the U.S. over the period 1970 to 2040. Using the Cross-Quantilogram, Wavelet Quantile Correlation, Wavelet Coherence, Quantile-on-Quantile Regression, and Nonparametric Quantile Granger Causality approaches, the empirical results provide the following: (i) The effect of household and commercial energy efficiency on energy-related CO2 emissions is negative across time, frequency domains, and conditional quantiles of the ERCE. (ii) The intensity of mitigating energy-related CO2 emissions arising from household improvement in energy efficiency is stronger in the long and very long terms. At the same time, the effect of commercial energy efficiency is stronger in the short and medium terms. (iii) Household and commercial energy efficiency predicts energy-related CO2 emissions across all conditional quantiles, except the extreme tails. Overall, this study provides a comprehensive analysis of how household and commercial energy efficiency asymmetrically affects energy-related CO2 emissions.