How Monetary and Fiscal Policies Shape Economic Growth: Evidence in Indonesia

Economic growth in emerging markets is often shaped by the interplay between fiscal and monetary policies, yet the relative contributions of each remain debated. This study addresses the problem of identifying which policy instruments most significantly explain fluctuations in Indonesia’s GDP growth. The objective is to evaluate the dynamic effects of fiscal and monetary shocks and to quantify their structural importance over different horizons.
Using a Vector Autoregression (VAR) framework, the research employs impulse response functions (IRF) and variance decomposition (VD) to capture both short run dynamics and long run contributions. The dataset includes key fiscal variables—government expenditure and household consumption—and monetary indicators such as policy interest rate (BI7DRR), exchange rate, and inflation.
The findings reveal that in the short run, GDP growth is largely self driven, while monetary shocks exert limited influence. Over longer horizons, government expenditure emerges as the dominant driver, explaining nearly 40% of GDP variance, whereas monetary variables remain marginal contributors. Household consumption plays a stabilizing role but does not structurally dominate GDP variance. These results highlight the asymmetry between fiscal and monetary policy: fiscal expansion provides sustained growth momentum, while monetary stability ensures that such expansion remains viable. The study contributes to the literature by offering empirical evidence that coordinated fiscal and monetary strategies are essential for sustainable economic development.

Monetary Policy, Fiscal Policy, GDP Growth, Vector Autoregression, Impulse Response Function, Variance Decomposition JEL Classification: E52, E62, O47, F43

1. Arestis, P., & Sawyer, M. (2010). The effectiveness of fiscal policy. Review of Keynesian Economics, 2(1), 1–20. https://doi.org/https://doi.org/10.4337/roke.2010.01.01 [Google Scholar] [Crossref]

2. Arestis, P., & Sawyer, M. (2004). On the Effectiveness of Monetary Policy and of Fiscal Policy. Review of Social Economy, 62(4), 441–463. https://www.jstor.org/stable/29770275 [Google Scholar] [Crossref]

3. Arezki, R., & Fan, R. Y. (2020). Digitalization and resilience in emerging economies. Journal of Economic Perspectives, 34(3), 45–67. https://doi.org/. https://doi.org/10.1257/jep.34.3.45 [Google Scholar] [Crossref]

4. Asian Development Bank. (2024). Asian Development Outlook (ADO) (ADB (ed.); ADB). ADB. [Google Scholar] [Crossref]

5. Badan Pusat Statistik. (2024). Indonesia Economic Growth Q4 2024 Report. Jakarta: BPS. [Google Scholar] [Crossref]

6. Baldwin, R. (2020). The COVID 19 crisis and trade: Accelerating digital transformation. In Economics in the time of COVID 19 (pp. 79–84). CEPR Press. https://cepr.org/publications/books/economics-time-covid-19 [Google Scholar] [Crossref]

7. Blanchard, O., & Johnson, D. R. (2013). Macroeconomics (6th ed.). Pearson. [Google Scholar] [Crossref]

8. Chen, Q., Allot, A., & Lu, Z. (2021). LitCovid: an open database of COVID-19 literature. Nucleic Acids Research. https://academic.oup.com/nar/article-abstract/49/D1/D1534/5964074 [Google Scholar] [Crossref]

9. Domar, E. D. (1946). Capital expansion, rate of growth, and employment. Econometrica, 14(2), 137–147. https://doi.org/https://doi.org/10.2307/1905364 [Google Scholar] [Crossref]

10. Eidgenössisches Departement für auswärtige Angelegenheiten. (2025). Economic Report 2025 Indonesia. Bern: Swiss Confederation, June, 1–15. https://www.eda.admin.ch/content/dam/countries/countries-content/singapore/en/Indo_Econ_Report_2025_EN.pdf [Google Scholar] [Crossref]

11. Fitch Ratings. (2023). Indonesia fiscal outlook. Https://www.Fitchratings.Com. https://www.fitchratings.com [Google Scholar] [Crossref]

12. Friedman, M. (1968). The role of monetary policy. American Economic Review, 58(1), 1–17. [Google Scholar] [Crossref]

13. Harrod, R. F. (1939). An essay in dynamic theory. The Economic Journal, 49(193), 14–33. https://doi.org/https://doi.org/10.2307/2225181 [Google Scholar] [Crossref]

14. IMF. (2024). World Economic Outlook. Washington, DC: International Monetary Fund. [Google Scholar] [Crossref]

15. Indonesia Investments. (2023). Indonesia’s fiscal policy and growth prospects. [Google Scholar] [Crossref]

16. Keynes, J. M. (1936). The General Theory of Employment, Interest, and Money. Macmillan. [Google Scholar] [Crossref]

17. Kurniawan, A., & Astuti, R. D. (2024). Transmission mechanism of monetary policy through asset price and exchange rate channel in Indonesia. . . Jurnal Ilmu Ekonomi Terapan, 8(1), 41–45. https://doi.org/https://doi.org/10.20473/jiet.v8i1.44316 [Google Scholar] [Crossref]

18. Lucas, R. E. (1988). On the mechanics of economic development. Journal of Monetary Economics, 22(1), 3–42. [Google Scholar] [Crossref]

19. Mishkin, F. S. (2019). The economics of money, banking, and financial markets (12th ed.). NY: Pearson. [Google Scholar] [Crossref]

20. MIT Economics. (2022). Lectures on Solow Growth Model. https://economics.mit.edu [Google Scholar] [Crossref]

21. Mu’arif, A., & Soebagyo, H. (2023). Economic growth dynamics in Indonesia. Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi Dan Pembangunan, 24(2), 145–160. [Google Scholar] [Crossref]

22. Pratomo, D. S. (2016). Fiscal policy and economic growth in Indonesia: Evidence from time series data. Journal of Indonesian Economy and Business, 31(2), 123–136. https://doi.org/https://doi.org/10.22146/jieb.12345 [Google Scholar] [Crossref]

23. Purba, J.H.V. (2025, November 4). Membedah Purbaya Effect: Strategi Fiskal dalam Sorotan Ekonomi Makro. Www.Kompasiana.Com. https://www.kompasiana.com/janhorasveryadypurba8924/6908b2a334777c728d542994/membedah-purbaya-effect-strategi-fiskal-dalam-sorotan-ekonomi-makro?page=4&page_images=1 [Google Scholar] [Crossref]

24. Purba, J.H.V. (2022). Analysis Driving Factors of Economic Growth During Covid-19 Pandemic: Indonesian Experiences. Jurnal Ilmiah Manajemen Kesatuan, 10(1), 73–86. https://doi.org/10.37641/jimkes.v10i1.1296 [Google Scholar] [Crossref]

25. Romer, P. M. (1990). Endogenous technological change. Journal of Political Economy, 98(5 Part 2), 71–102. https://doi.org/https://doi.org/10.1086/261725 [Google Scholar] [Crossref]

26. Rosmika, N., Masbar, R., & Seftarita, C. (2020). The Effect of Fiscal and Monetary Policy on Economic Growth in Indonesia. 4464(6). https://doi.org/10.36349/EASJEBM.2020.v03i06.002 [Google Scholar] [Crossref]

27. Siregar, R., & Ward, B. (2010). Managing capital flows in Indonesia: Macroeconomic and institutional perspectives. Asian Development Review, 27(1), 160–187. [Google Scholar] [Crossref]

28. Solow, R. M. (1956). A contribution to the theory of economic growth. Quarterly Journal of Economics, 1(70), 65–94. https://doi.org/https://doi.org/10.2307/1884513 [Google Scholar] [Crossref]

29. Swan, T. W. (1956). Economic growth and capital accumulation. Economic Record, 32(2), 334–361. https://doi.org/10.1111/J.1475-4932.1956.TB00434.X [Google Scholar] [Crossref]

30. Universitas Indonesia. (2022). Kajian kebijakan fiskal pasca pandemi. UI Press. [Google Scholar] [Crossref]

31. Wahyuningsih, P., Adhi, D. K., & Tasriastuti, N. A. (2025). Indonesia’s post-pandemic economic recovery strategy through a digital transformation. International Journal of Economics, Business and Management Research, 4(2), 63–69. https://doi.org/https://doi.org/10.xxxx/ijebmr.v4i2.123 [Google Scholar] [Crossref]

32. Widyatmoko, A., Cholida, M. N., Kurniawan, M. L. A., Az Zakiyyah, N. A., & Suripto. (2025). Structural analysis of macroeconomic variables in Indonesia: A VAR approach. The International Conference on Sustainable Economics, Management, and Accounting (ICSEMA) Proceedings, 37–50. [Google Scholar] [Crossref]

33. Wijayanti, D., & Aji, M. R. B. (2023). Analisis Kebijakan Fiskal Terhadap Pertumbuhan Ekonomi di Indonesia. Jurnal Apliaksi Bisnis, 20(1), 379–389. https://econpapers.repec.org/article/uiijabisf/v_3a20_3ay_3a2023_3ai_3a1_3ap_3a379-389_3aid_3a28872.htm [Google Scholar] [Crossref]

34. World Bank. (2021). Indonesia economic prospects. World Bank. https://documents.worldbank.org/en/publication/documents-reports/documentdetail/099825003112231379/p1742410b3b0a20f20a0a01f3a0a0a0a0a0 [Google Scholar] [Crossref]

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