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Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers
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Does digital investment affect carbon efficiency? Spatial effect and mechanism discussion.

Qiong Xu1, Meirui Zhong2, Mengyuan Cao1

  • 1School of Business, Central South University, Changsha 410083, China.

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Information and Communication Technology (ICT) capital boosts economic growth while reducing carbon emissions. This study reveals ICT investment enhances carbon emission efficiency and promotes green economic transformation through technological innovation and improved resource allocation.

Keywords:
Carbon emission efficiencyDynamic spatial Durbin modelICT capitalMechanism test

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Area of Science:

  • Environmental Economics
  • Digital Economy
  • Sustainable Development

Background:

  • Economic growth traditionally correlates with increased carbon emissions.
  • Digitalization, powered by Information and Communication Technology (ICT) capital, offers a pathway to decouple growth from emissions.
  • Understanding the specific impacts of ICT capital on carbon emission efficiency is crucial for sustainable economic policies.

Purpose of the Study:

  • To innovatively calculate ICT capital in China (2001-2018).
  • To explore the effects of ICT capital on carbon emission efficiency and its spatial spillover effects.
  • To identify the mediating mechanisms through which ICT capital influences carbon emission efficiency.

Main Methods:

  • Calculation of ICT capital in China from 2001 to 2018.
  • Empirical analysis of ICT capital's impact on carbon emission efficiency, pure technical efficiency, scale efficiency, and technological progress.
  • Spatial effect analysis to understand regional spillovers.
  • Mediation tests to explore underlying mechanisms.

Main Results:

  • ICT capital significantly improves carbon emission efficiency, pure technical efficiency, scale efficiency, and technological progress.
  • ICT communication capital demonstrates the strongest positive effect on carbon emission efficiency.
  • ICT capital exhibits positive spatial spillover effects on surrounding areas, particularly benefiting the central region.
  • ICT capital enhances carbon emission efficiency by driving technological innovation, optimizing industrial structure, improving resource allocation, and accumulating human capital.

Conclusions:

  • ICT capital is a key driver for improving carbon emission efficiency and achieving a low-carbon economy.
  • Targeted investment in ICT, especially communication capital, can maximize emission reduction benefits.
  • Policy interventions should leverage ICT to foster innovation, optimize resource allocation, and promote sustainable economic transformation.