• Accelerating the Transition to a Circular Economy for Net-Zero Emissions by 2050: A Systematic Review 

      Khalifa, Ahmed A.; Ibrahim, Abdul Jalil; Amhamed, Abdulkarem I.; El-Naas, Muftah H. ( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)
      Achieving net-zero emissions by 2050 will require tackling both energy-related and non-energy-related GHG emissions, which can be achieved through the transition to a circular economy (CE). The focus of climate change ...
    • Dataset for petroleum based stock markets and GAUSS codes for SAMEM 

      Khalifa, Ahmed A.A.; Bertuccelli, Pietro; Otranto, Edoardo ( Elsevier Inc. , 2017 , Article)
      This article includes a unique data set of a balanced daily (Monday, Tuesday and Wednesday) for oil and natural gas volatility and the oil rich economies’ stock markets for Saudi Arabia, Qatar, Kuwait, Abu Dhabi, Dubai, ...
    • Volatility transmission across currencies and commodities with US uncertainty measures 

      Khalifa, Ahmed A. A.; Otranto, Edoardo; Hammoudeh, Shawkat; Ramchander, Sanjay ( Elsevier Inc. , 2016 , Article)
      This paper uses the Multi-chain Markov Switching model (MCMS) conditioned on US uncertainty measures (VIX, VIX-oil and FSI) to examine the patterns of volatility transmission across the resource, major and safe haven ...
    • Why Gulf Rentier Economies Must Pursue Economic Diversification 

      Khalifa, Ahmed A.; Ibrahim, Abdul-Jalil ( Springer , 2020 , Book chapter)
      Within the mandate of their national visions, GCC countries have announced several strategies to expand their manufacturing, tourism and financial activities (economic diversification). However, the path towards the ultimate ...