ANALISIS PENGARUH INVESTASI DAN INFLASI TERHADAP PERTUMBUHAN EKONOMI INDONESIA TAHUN 1990-2024
Keywords:
Investment, Inflation, GDP, IndonesiaAbstract
Economic growth is an important indicator of a country’s development performance and is influenced by macroeconomic factors such as investment and inflation. This study analyzes the effect of investment and inflation on Indonesia’s economic growth during 1990–2024 using a quantitative approach with time series data obtained from the World Bank and BPS. The analysis applies multiple linear regression using the Ordinary Least Squares (OLS) method, supported by classical assumption tests including normality, multicollinearity, heteroscedasticity, and autocorrelation tests. The results indicate that investment has a positive and significant effect on economic growth, showing that increased investment contributes to higher national output and economic activity. Meanwhile, inflation has a negative and significant effect on economic growth, indicating that high inflation can reduce economic stability and purchasing power. Simultaneously, investment and inflation significantly affect economic growth, with a coefficient of determination (R²) of 0.522, meaning that 52.2% of economic growth variations are explained by the model.
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