Digital Economy Sectors are Key Co 2 Transmission Centers in the Economic System
Rapid growth of the digital economy has created a driving force for economic development, but the massive demand for electricity from digital reforms coupled with China's coal-based power generation has created a significant CO 2 emission problem that cannot be ignored. Previous studies have assessed digital economy sectors with incomplete scope and lack of carbon footprint assessment at the intermediary-side. To fill this gap, this study assesses the CO 2 footprint using input-output modelling of the core industry sector of the digital economy and the industrial digitalization sector at the production, intermediary and demand sides, and identifies key CO 2 transmission centers. The results show that: (1) digital economy sectors have a very high betweenness and are important CO 2 transmission centers in the economic system; (2) digital economy sectors have very high CO 2 footprints on the production-side, the intermediary-side and the demand-side, and transmits CO 2 more through the demand-side and key transmission centers; (3) the embodied CO 2 footprints of the digital economy sectors are higher than the direct CO 2 footprints. This study suggests that the digital economy sectors can decarbonize and reduce CO 2 footprints by: (1) improving material use efficiency in the digital product manufacturing sector; (2) reducing the use of carbon-intensive energy and materials in in the digital economy sectors; (3) establishing CO 2 emission disclosure rules and incentives and penalties.
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