Banegas Rivero, Roger Alejandro, Marco Alberto Nuñez Ramirez, Jorge Salas Vargas, Luis Fernando Escobar Caba, and Sacnicté Valdez del Río. 2019. “Landlocked Countries, Natural Resources and Growth: The Double Economic Curse Hypothesis”. International Journal of Energy Economics and Policy 9 (5):113-24. https://econjournals.com./index.php/ijeep/article/view/8037.