Oumayma Messaoudi holds a Ph.D. in Economics and a researcher at the Development Economics Laboratory (LED) of the Faculty of Economics and Management of Sfax, Tunisia.. Her research focuses on sustainable transportation systems, regional trade integration, and the economic implications of environmental policies. With a strong background in quantitative analysis and policy evaluation, she contributes to interdisciplinary studies that bridge transport infrastructure, economic development, and environmental sustainability. She has presented her work at national and international conferences and collaborates on projects addressing logistics efficiency and low-carbon mobility in landlocked countries.