Freddy Harry, Y. M. ., & Michèle, T. A. . (2021). Conflicts do they affect the overall competitiveness of Sub-Saharan African fragile countries? An approach of the Pooled Mean-Group. International Journal of Social Science and Economics Invention, 7(02), 27 to 35. https://doi.org/10.23958/ijssei/vol07-i02/264