<p>To attain sustainable development, funding is required. A principal source of developmental finance that has been embraced particularly by developing economies is foreign direct investment (FDI). However, there are arguments that FDI flow could be a “blessing” or a “curse” to the host country. Therefore, this study was designed to evaluate the effect of FDI on sustainable development in the Central African Economic and Monetary Community (CEMAC) region by hypothesizing that an upright spiral (“blessing”) can be attained through the modulation of information sharing. Our analysis revealed that (i) the pace of FDI flow has no discernable impact on sustainable development; (ii) the slow pace of sustainable development hurts the pace of FDI flows across the CEMAC region; and (iii) information sharing moderates the FDI–sustainable development nexus. These results were robust to an alternative estimate. The main conclusion based on an elasticity estimate is that the retrospective effects of sustainable development on FDI and the latter on subsequent sustainable development can lead to a “blessing” (upright spiral). Consequently, a rise in the rate of initial FDI flows has a positive spillover effect on sustainable development which concurrently stirs more inflow of FDI. This situation is termed in this study as the pro-sustainable development–FDI strategy.</p>