Santillán-Salgado, Roberto J., Alà Aali-Bujari, and Francisco Venegas-MartÃnez. 2019. “Is There a ‘Reverse Causality’ from Nominal Financial Variables to Energy Prices?”. International Journal of Energy Economics and Policy 9 (3):229-43. https://mail.econjournals.com/index.php/ijeep/article/view/7526.