The study looked at how government spending, domestic investment, and foreign debt affect Indonesia's economy. They used data from 1998 to 2021 and a statistical model to analyze the relationships. The results showed that government spending and foreign debt have a significant impact on Indonesia's GDP, while domestic investment does not. Together, these factors influence the country's economic growth. The analysis found that 98.57% of GDP changes can be explained by these variables, with the remaining 1.42% influenced by other factors.