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Abstract
This study examines domestic energy consumption in Taiwan under
economic shocks, with a focus on the 2008 financial crisis and crude oil price
volatility. As Taiwan relies heavily on imported energy, accurate forecasting
of consumption is critical for sustainable policy planning. Using monthly data
from 2002 to 2019, this research applies autoregressive and ARIMA models to
predict long-term demand and assess the impact of external shocks. Results
indicate a steady upward trend in energy use with clear seasonal variation, but
notable declines occurred during the 2008 oil price surge and financial
turmoil, reflecting strong sensitivity to global instability. The AR(1) model
shows high explanatory power, with predicted values closely matching observed
data, and diagnostic tests confirming model robustness. Findings highlight that
while energy demand recovers alongside economic growth, conservation policies
during downturns alone are insufficient. The study underscores the importance
of improving energy efficiency, diversifying supply, and strengthening
carbon-reduction measures to ensure Taiwan’s sustainable energy security.
JEL classification numbers: Q41, Q43, Q48, C22.
Keywords: Energy Consumption, ARIMA Model, Economic Shock, Energy
Security.