List of Articles مدل VAR-BEKK-GARCH Open Access Article Abstract Page Full-Text 1 - Study in order to measure nexus and spillover effects from world commodities to Tehran overall stock index: A VAR-BEKK-GARCH Approach mohammadbagher mohammadinejad pashaki seyyed jalal sadeghi sharif Mehdi Zolfaghari Mohammad Eqbalnia