Vardanyan, M. 2023. Richardson’s Multilateral Military Expenditure Model Augmentation via Sentiment Analysis of News Data in the Framework of Complexity Eco-nomics. Bulletin of Yerevan University G: Economics. 14, 2 (41) (Dec. 2023), 48–58. DOI:https://doi.org/10.46991/BYSU:G/2023.14.2.048.