Forecasting Ghana's government expenditure (1983–2024) using ARIMAX time series models in R
This repository contains a fully reproducible R Markdown analysis applying ARIMAX (Autoregressive Integrated Moving Average with Exogenous Variables) to forecast Ghana's annual government expenditure. The study examines how population growth, government revenue, and GDP influence fiscal spending patterns, and benchmarks five model specifications against a univariate ARIMA baseline.