IDEAS home Printed from https://ideas.repec.org/a/eco/journ2/v16y2026i2id22022.html

VECM Modeling of the Determinants of Decarbonization in Tunisia: The Role of Innovation and Renewable Energies

Author

Listed:
  • Amiri, Kaouther

    (Higher Institute of Management of Tunis, University of Tunisia, Economics Department, Laboratory of International Economic Integration, Faculty of Economic Sciences and Management of Tunis, University Tunis El Manar, Tunisia,)

  • Arfaoui, Lamia

    (Department of Business Administration, College of Business, University of Bisha, Bisha, Saudi Arabia,)

  • Mannai, Sonia

    (Department of Finance and Investment, Faculty of Business Administration, University of Tabuk, Tabuk, Saudi Arabia,)

  • Khouaja, Sihem Nasr

    (Department of Business Administration, College of Business, University of Bisha, Bisha, Saudi Arabia.)

Abstract

This study analyzes the dynamic relationships between per capita CO2 emissions, renewable energy consumption, environmental innovation, and trade openness using a Vector Error Correction Model (VECM) over the period 1995-2024. The econometric analysis confirms the existence of a long-run cointegration relationship between these variables, highlighting a stable equilibrium mechanism linking environmental outcomes, technological progress, energy transition, and economic openness. Short-term causality tests reveal asymmetric interactions: environmental innovation is significantly influenced by shocks to renewable energy consumption and trade openness, while CO2 emissions show relative rigidity in the short run. Stability tests confirm the robustness of the model, and variance decomposition highlights the increasing influence of renewable energy on emissions, reflecting the gradual impact of energy transition policies. Environmental innovation emerges as a key driver influencing both renewable energy development and emissions dynamics, highlighting the crucial role of technological progress in achieving sustainability goals. Trade openness exerts an indirect but significant effect, interacting with innovation and energy over longer time horizons.

Suggested Citation

  • Amiri, Kaouther & Arfaoui, Lamia & Mannai, Sonia & Khouaja, Sihem Nasr, 2026. "VECM Modeling of the Determinants of Decarbonization in Tunisia: The Role of Innovation and Renewable Energies," International Journal of Energy Economics and Policy, Econjournals, vol. 16(2), pages 646-654, January.
    • Handle: RePEc:eco:journ2:v:16:y:2026:i:2:id:22022
    DOI: 10.32479/ijeep.22022
    as

    Download full text from publisher

    File URL: https://econjournals.com/index.php/ijeep/article/download/22022/9804
    Download Restriction: no
    File URL: https://libkey.io/10.32479/ijeep.22022?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    JEL classification:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eco:journ2:v:16:y:2026:i:2:id:22022. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Monica Sinhat (email available below). General contact details of provider: https://econjournals.com/index.php/ijeep .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.