Does Economic Policy Uncertainty Affect CO2 Emissions? Empirical Evidence from the United States Article Swipe

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Distributed lag Economics Unit root Per capita Lag Index (typography) Short run Econometrics Greenhouse gas Natural resource economics Climate change Autoregressive model Structural break Unit root test Environmental science Cointegration Macroeconomics Computer network World Wide Web Ecology Biology Population Sociology Computer science Demography

Qing Wang , Kefeng Xiao , Zhou Lu ·

YOU? · · 2020 · Open Access · · DOI: https://doi.org/10.3390/su12219108 · OA: W3096112474

This paper aims to examine the effects of economic policy uncertainty (measured by the World Uncertainty Index—WUI) on the level of CO2 emissions in the United States for the period from 1960 to 2016. For this purpose, we consider the unit root test with structural breaks and the autoregressive-distributed lag (ARDL) model. We find that the per capita income promotes CO2 emissions in the long run. Similarly, the WUI measures are positively associated with CO2 emissions in the long run. Energy prices negatively affect CO2 emissions both in the short run and the long run. Possible implications of climate change are also discussed.