This assignment focuses on the nexus among foreign investment, domestic capital, and economic growth, with a specific emphasis on the Middle East and North Africa (MENA) region. It explores how foreign direct investment (FDI) impacts economic growth, considering other factors such as CO2 emissions and energy consumption. The assignment includes studies from prominent economists like Omri et al., Pegkas, Popescu, Saidi and Hammami, Sbia et al., Temiz and Gökmen, and Zhu et al.