Impact of Sino-US Trade Liberalization on China’s Carbon Emissions and Future Works on Fractional Phenomenon

Table 1

Variable statistical description.

Variable	Definition	Mean value	Standard deviation	Minimum value	Maximum value
CO2	Carbon emission (tons)	32297.78	25701.03	563.55	151958.6
T	China-US trade liberalization	0.0565	0.0946	0.0005	0.621
Pgdp	Per-capita GDP (CNY/person)	31051.34	26046.22	3541.08	107217.1
Pop	Population density (person/km^2)	2164.106	1430.861	2.4	6307.38
Sec	Proportion of the added value of the secondary industry in GDP (%)	45.82	8.08	18.63	61.5
Rd	Proportion of internal expenditure on R&D in GDP (%)	1.35	1.06	0.146	6.014
Es	Energy structure (%)	59.40	21.89	0.538	92.78
Car	Private car ownership (10,000)	230.88	317.76	2.1	1910.26