https://www.tandfonline.com/doi/full/10.1080/09692290.2022.2107043
https://blogs.imf.org/2019/12/17/new-data-on-world-debt-a-dive-into-country-numbers/?utm_medium=email&utm_source=govdelivery
https://www.mckinsey.com/mgi/our-research/global-trade-explorer?sector=0ag