Wahyuni, T., Lakilaki, E., Wijaya, P. and Anisha, A. (2026) “Labour Underutilisation in the BRICS-4: Do Exchange Rates and Foreign Direct Investment Matter?”, Journal of Business and Economics Research (JBE), 7(1), pp. 77-85. doi: 10.47065/jbe.v7i1.9151.