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The Impact of Public–Private Partnership Investments in Transport on CO 2 Emissions in East Asian and Pacific Regions: A VAR Model

Author

Listed:
  • Jawaher Binsuwadan

    (Department of Economics, College of Business Administration, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia)

  • Hawazen Almugren

    (Department of Economics, College of Business Administration, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia)

  • Rana Alshamrani

    (Department of Economics, College of Business Administration, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia)

  • Arwa Abuhaimed

    (Department of Economics, College of Business Administration, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia)

Abstract

This paper investigates investments in public–private partnerships within the transport sector and their impact on CO 2 emissions from transportation in the East Asian and Pacific regions. It explores the relationships between CO 2 emissions from transportation, investment in public–private partnerships, renewable energy, research and development, and economic growth. The study employs a unit root test, a cointegration model, and a vector autoregressive model, covering the period from 1990 to 2023. The findings suggest that public–private partnerships in the transport sector can reduce CO 2 emissions through adequate investment. Furthermore, renewable energy diminishes CO 2 emissions by regulating them and concurrently producing fewer emissions. Environmental research and development help reduce CO 2 emissions in the transport sector, while economic growth contributes to an increase in transport sector CO 2 emissions. These findings provide critical insights for policymakers, underscoring the necessity for a systematic reallocation of public–private partnership investments in the transport sector to reduce CO 2 emissions and enhance environmental sustainability in East Asian and Pacific regions.

Suggested Citation

  • Jawaher Binsuwadan & Hawazen Almugren & Rana Alshamrani & Arwa Abuhaimed, 2025. "The Impact of Public–Private Partnership Investments in Transport on CO 2 Emissions in East Asian and Pacific Regions: A VAR Model," Sustainability, MDPI, vol. 17(20), pages 1-19, October.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:20:p:9074-:d:1770360
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    References listed on IDEAS

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