[1][4] Fall taught mathematics in Washington, D.C. before establishing an international consulting firm based in Dakar and Nairobi in 1983 called African Economists for Social Change.

[7] Fall was invited alongside African heads of state Olusegun Obasanjo, Ellen Johnson Sirleaf, Amadou Toumani Toure and Alassane Ouattara by billionaire George Soros to establish the Open Society Initiative for West Africa (OSIWA).

[3][4] In December 2018, just before the 2019 presidential election,[4] Fall joined Ousmane Sonko's political party The African Patriots of Senegal for Work, Ethics and Fraternity (PASTEF).

[8] The party was banned in 2023 after Sonko's arrest for insurrection, a decree that was repealed after PASTEF's General Secretary Bassirou Diomaye Faye won the 2024 presidential election.

[3] Former President of Liberia, Ellen Johnson Sirleaf publicly congratulated her on her appointment, saying on her official X account, "She brings to the role an accomplished track record as an economist and an understanding of the critical importance of advancing #genderequality to meet the continent’s development goals.