IMPACTS OF FIXED ASSET INVESTMENT ON CARBON EMISSION IN OIL-GAS SECTOR UNDER"DUAL CARBON"OBJECTIVE
This paper,aiming at the relation between fixed asset investment and carbon emission in oil-gas sector,uses China's 2002 to 2021 oil-gas sector panel data to establish a fixed effect model for exploring the impacts of fixed asset investment on carbon emission,and employs mediating effect model and stepwise regression to study the relation among fixed asset investment,R&D investment per capita and carbon emission in oil-gas sector and the impacting mechanism.Fixed asset investment in oil-gas sector has largely decreased carbon emission ratio with an impact coefficient at-1.913,which means increasing fixed asset investment in oil-gas sector can outstandingly decrease carbon dioxide emission.Regression on replacing explained variables/explaining variables and adding controlling variables confirms the above results.R&D investment per capita plays a mediating role between fixed asset investment and carbon emission ratio with a mediating value at 24.7％,fixed asset investment in the oil-gas sector significantly reduced R&D investment per capita,while R&D investment per capita can effectively limit carbon emission ratio via green technical innovation.The impact of fixed asset investment on carbon emissions in the oil-gas sector is short-term and the impact coefficient is small,while the impact on main business income is long-term and the impact coefficient is large.During stably growing and transforming periods in China's oil-gas sector,fixed asset investment difference impacts carbon emission ratio,heterogeneity test showing that there is no obvious correlation between fixed asset investment and carbon emission ratio during the stably growing period,and that fixed asset investment can largely limit carbon emission ratio during transforming/upgrading period in oil-gas sector.
oil-gas sectorcarbon emission ratiofixed asset investmentR&D investment per capita
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NSTL
万方数据
