Abstract
The study assessed the mediating role of Private Sector Growth
(PSG) in the relationship between Government Expenditure (GE) and Economic
Growth (EG) across East African Community (EAC) countries from 1970 to 2022.
Using panel data from six member states and mediation analysis, the study
results reveal that PSG partially mediates the GE–EG relationship. This
suggests that while GE has a direct positive impact on EG, it also enhances
growth indirectly by stimulating private sector performance. Grounded in Keynesian
and endogenous growth theories, the findings emphasize that public investment
can unlock private sector potential and drive long-term economic development.
The study indicates the need to align fiscal policy with private sector
development strategies to achieve more sustained growth. While regional
integration efforts aim to foster collective growth, persistent disparities in
EG across EAC countries highlight the need for a more harmonized and
coordinated regional framework. Prioritizing GE in sectors with strong private
sector spillovers, conducting regular fiscal audits, and reducing regulatory
barriers are essential for enhancing the effectiveness of public investment. By
leveraging PSG as a mediating force, EAC countries can better align fiscal
policy with regional development goals, enabling a more inclusive and balanced
transformation across member states.