This study investigates the impact of the macroeconomic policy trilemma-monetary policy independence, exchange rate stability, and financial openness-on investment in developing countries, with particular emphasis on African economies. Grounded in the theoretical framework of the Impossible Trinity, the study examines how different policy combinations influence investment dynamics in economies characterized by structural constraints and increasing financial integration. Using a balanced panel dataset of 39 African countries spanning a 30-year period, the analysis employs Ordinary Least Squares (OLS) and Two-Stage Least Squares (2SLS) estimation techniques to evaluate the relationship between the Trilemma Index components and investment outcomes. The empirical results indicate that managing the trade-offs associated with the trilemma remains a persistent challenge for African economies. Many countries in the region exhibit limited monetary policy autonomy and underdeveloped financial systems, which increases their reliance on foreign direct investment (FDI) as a primary source of capital inflows. At the same time, structural vulnerabilities and exposure to external shocks constrain their ability to maintain exchange rate stability. Consequently, policymakers face significant difficulties in simultaneously achieving macroeconomic stability, financial openness, and investment growth. Endogeneity tests further confirm the robustness of the estimated relationships. Overall, the findings underscore the importance of strengthening macroeconomic institutions, improving monetary policy frameworks, and enhancing exchange rate management to better navigate the trilemma constraints and promote sustainable investment in African economies.
Impossible Trinity, Financial Liberalization, Monetary Policy Independence, Exchange Rate Stability, Foreign Direct Investment, African Economies.
International Journal of Trend in Scientific Research and Development - IJTSRD having
online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International
Journal which provides rapid publication of your research articles and aims to promote
the theory and practice along with knowledge sharing between researchers, developers,
engineers, students, and practitioners working in and around the world in many areas
like Sciences, Technology, Innovation, Engineering, Agriculture, Management and
many more and it is recommended by all Universities, review articles and short communications
in all subjects. IJTSRD running an International Journal who are proving quality
publication of peer reviewed and refereed international journals from diverse fields
that emphasizes new research, development and their applications. IJTSRD provides
an online access to exchange your research work, technical notes & surveying results
among professionals throughout the world in e-journals. IJTSRD is a fastest growing
and dynamic professional organization. The aim of this organization is to provide
access not only to world class research resources, but through its professionals
aim to bring in a significant transformation in the real of open access journals
and online publishing.