TY - JOUR
T1 - Stationarity properties of per capita CO2 emissions in the OECD in the very long-run
T2 - A replication and extension analysis
AU - Churchill, Sefa Awaworyi
AU - Inekwe, John
AU - Ivanovski, Kris
AU - Smyth, Russell
PY - 2020/8
Y1 - 2020/8
N2 - We replicate, and extend, Zerbo and Darné's (2019) study examining the stationarity properties of per capita carbon dioxide (CO2) emissions in the OECD from 1960 to 2014. We first replicate by reproduction their main findings for 25 OECD countries by applying their methods over the same time period that they consider. We then extend the analysis to examine whether CO2 emissions are stationary in those 25 OECD countries from 1860 to 2014. We confirm Zerbo and Darné's (2019) main conclusion that historical events have induced changes in the trend function of the series and that emission levels are characterized by a non-stationary process. Using a longer timeframe also provides additional insights. Results from unit root testing suggest that not only more recent events, such as the first oil price shock, as highlighted by Zerbo and Darné (2019), but the Long Depression of the nineteenth century, the Great Depression and the two world wars have induced changes in the slope of the series.
AB - We replicate, and extend, Zerbo and Darné's (2019) study examining the stationarity properties of per capita carbon dioxide (CO2) emissions in the OECD from 1960 to 2014. We first replicate by reproduction their main findings for 25 OECD countries by applying their methods over the same time period that they consider. We then extend the analysis to examine whether CO2 emissions are stationary in those 25 OECD countries from 1860 to 2014. We confirm Zerbo and Darné's (2019) main conclusion that historical events have induced changes in the trend function of the series and that emission levels are characterized by a non-stationary process. Using a longer timeframe also provides additional insights. Results from unit root testing suggest that not only more recent events, such as the first oil price shock, as highlighted by Zerbo and Darné (2019), but the Long Depression of the nineteenth century, the Great Depression and the two world wars have induced changes in the slope of the series.
KW - CO2 emissions
KW - Unit root test
KW - OECD
UR - http://www.scopus.com/inward/record.url?scp=85088113404&partnerID=8YFLogxK
U2 - 10.1016/j.eneco.2020.104868
DO - 10.1016/j.eneco.2020.104868
M3 - Article
SN - 1873-6181
VL - 90
SP - 1
EP - 11
JO - Energy Economics
JF - Energy Economics
M1 - 104868
ER -