Aguiar, Angel, Badri Narayanan, and Robert McDougall. “An Overview of the GTAP 9 Data Base”. Journal of Global Economic Analysis 1, no. 1 (June 3, 2016): 181–208. Accessed July 12, 2026. https://lpvageojs02.it.purdue.edu/ojs/index.php/jgea/article/view/23.