Title: The Dual Trajectory of Uganda: A Comparative Analysis of Economic and Population Growth Since 1986
Authors: Arinaitwe Julius, Musiimenta Nancy
Volume: 10
Issue: 3
Pages: 86-96
Publication Date: 2026/03/28
Abstract:
This study examined the dual trajectory of Uganda's economic and population growth from 1986 to 2023, a period spanning nearly four decades since the National Resistance Movement assumed political leadership and initiated sweeping structural reforms. Employing a longitudinal quantitative research design, the study analysed time-series data on GDP per capita, total GDP, population size, and annual growth rates sourced from the World Bank Development Indicators, the Uganda Bureau of Statistics, and the United Nations Population Division. The analytical framework integrated univariate descriptive statistics, bivariate correlation analysis, and time-series trend modelling, including Ordinary Least Squares regression and ARIMA-based decomposition to isolate trend, seasonal, and residual components. Results revealed that Uganda's population grew from approximately 14.3 million in 1986 to 48.2 million by 2023, representing a 237% increase, while GDP per capita rose from USD 210 to USD 940, a 348% nominal increase. Pearson correlation analysis yielded a statistically significant positive association between population size and GDP per capita (r = 0.974, p < 0.001), though Durbin-Watson diagnostics indicated residual autocorrelation, necessitating phase-specific disaggregation. Time-series decomposition identified three distinct growth phases: a recovery phase (1986-2000), a rapid growth phase (2000-2012), and a moderation phase (2012-2023). The Economic-to-Demographic growth ratio peaked at 2.09 in Phase II before declining to 1.18 in Phase III, suggesting a narrowing per capita dividend. The study concluded that while Uganda's macroeconomic trajectory has been broadly positive, the pace of population growth continues to exert structural pressure on per capita gains in education, healthcare, and labour markets. Recommendations include strengthened investment in human capital development, integrated population and economic planning, and diversification of the economic base to sustain and accelerate per capita growth.