Lilia Karnizova

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Staff working papers

Energy Efficiency and Fluctuations in CO2 Emissions

Staff Working Paper 2021-47 Soojin Jo, Lilia Karnizova
Carbon dioxide emissions have been commonly modelled as rising and falling with total output. Yet many factors, such as energy-efficiency improvements and shifts to cleaner energy, can break this relationship. We evaluate these factors using US data and find that changes in energy efficiency of consumption goods explain a significant proportion of emissions fluctuations. This finding also implies that models that omit energy efficiency likely overestimate the trade-off between environmental protection and economic performance.

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