Oyesiji Yinusa Kolawole and Rihanat I. Abdulkadir 2026. FINANCIAL EFFICIENCY AND PRIVATE INVESTMENT IN SUB-SAHARAN AFRICA. Labuan Bulletin of International Business and Finance (LBIBF). 24, 1 (Aug. 2026), 199–213. DOI:https://doi.org/10.51200/lbibf.v24i1.6769.