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Abstrak
Abstract
Regional development disparities among cities in North Sumatra remain a crucial issue in regional economics, impacting uneven growth and societal welfare. This study analyzes urban development inequality in eight cities in North Sumatra from 2011 to 2023 using the Williamson Index (IW) and panel data regression analysis. The findings indicate that the average regional development inequality is moderate, with an IW value of 0.31, though significant disparities exist among cities. Medan exhibits the highest inequality (IW = 0.836) due to economic dominance and urbanization concentrated in trade and industry sectors, while Pematang Siantar records the lowest inequality (IW = 0.054) with more balanced development distribution. Simultaneously, economic growth, the Human Development Index (HDI), agglomeration, and local government capital expenditure significantly influence regional disparities. However, in a partial analysis, only HDI (p = 0.0092) and agglomeration (p = 0.000) are found to have a significant impact, whereas economic growth and government capital expenditure do not show a significant effect. These findings highlight that economic agglomeration is the most dominant factor exacerbating inequality, while an increase in HDI tends to widen disparities if development distribution remains uneven. Therefore, more effective policies are needed, such as redistribution of investment based on HDI, optimization of capital expenditure allocation for infrastructure in underdeveloped areas, and economic incentives to promote more balanced growth beyond Medan.
Keywords: Regional Inequality, Economic Growth, Human Development Index, Agglomeration, Government Capital Expenditure
Abstrak
Kesenjangan pembangunan regional di antara kota-kota di Sumatera Utara tetap menjadi masalah penting dalam ekonomi regional, yang berdampak pada pertumbuhan yang tidak merata dan kesejahteraan masyarakat. Penelitian ini menganalisis ketimpangan pembangunan perkotaan di delapan kota di Sumatera Utara dari tahun 2011 hingga 2023 menggunakan Williamson Index (IW) dan analisis regresi data panel. Temuan menunjukkan bahwa rata-rata ketimpangan pembangunan daerah sedang, dengan nilai IW 0,31, meskipun ada kesenjangan yang signifikan antar kota. Medan menunjukkan ketimpangan tertinggi (IW = 0,836) karena dominasi ekonomi dan urbanisasi yang terkonsentrasi pada sektor perdagangan dan industri, sedangkan Pematang Siantar mencatat ketimpangan terendah (IW = 0,054) dengan distribusi pembangunan yang lebih seimbang. Secara bersamaan, pertumbuhan ekonomi, Indeks Pembangunan Manusia (IPM), aglomerasi, dan belanja modal pemerintah daerah secara signifikan mempengaruhi kesenjangan regional. Namun, dalam analisis parsial, hanya IPM (p = 0,0092) dan aglomerasi (p = 0,000) yang ditemukan memiliki dampak yang signifikan, sedangkan pertumbuhan ekonomi dan belanja modal pemerintah tidak menunjukkan efek yang signifikan. Temuan ini menyoroti bahwa aglomerasi ekonomi adalah faktor paling dominan yang memperburuk ketimpangan, sementara peningkatan IPM cenderung memperlebar kesenjangan jika distribusi pembangunan tetap tidak merata. Oleh karena itu, diperlukan kebijakan yang lebih efektif, seperti redistribusi investasi berbasis IPM, optimalisasi alokasi belanja modal untuk infrastruktur di daerah tertinggal, dan insentif ekonomi untuk mendorong pertumbuhan yang lebih seimbang di luar Medan.
Kata Kunci: Ketimpangan Pembangunan, Pertumbuhan Ekonomi, Indeks Pembangunan Manusia, Aglomerasi, Belanja Modal Pemerintah
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Hak Cipta (c) 2025 Sukma Hayati Hakim

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Referensi
- Agustina, R., & Firdaus, M. (2022). Analisis Ketimpangan Pendapatan di Indonesia Tahun 2011-2022. Universitas Pendidikan Indonesia.
- Arifin, L. V. (2018). Analisis pengaruh pertumbuhan ekonomi, aglomerasi dan tingkat pengangguran terhadap ketimpangan antar wilayah kabupaten/kota di provinsi kalimantan timur, Jurnal Ilmu Ekonomi, 2, 2.
- Arsita, A. (2019). Analisis pengaruh pertumbuhan ekonomi, ipm, aglomerasi, dan belanja pemerintah daerah terhadap ketimpangan pembangunan antar wilayah kabupaten/kota di provinsi banten tahun 2013-2017. Skripsi: Fakultas Ekonomi dan Bisnis Universitas Islam Negeri Syarif Hidayatullah Jakarta.
- Avelino, G., & Coronel, D.A. (2021). Macroeconomic Determinants of Economic Growth in Developing Countries: A Cross-Sectional Analysis. Journal of Business and Economic Options, 4(1):16-24.
- Bonet, J. (2006.). Fiscal Decentralization and Regional Income Disparities": Evidence From The Colombian Experience. Original Paper Regional Economics, 40: 661-676 Colombia.
- Chrisetyoningrum, A. M. (2022). Analisis pengaruh aglomerasi industri, jumlah penduduk terhadap tingkat disparitas pendapatan antar kabupaten/kota di provinsi jawa tengah tahun 2016-2020. Diponegoro Journal Of Economics, 11(1).
- Ean, T.G., Mansor, S.B.A., & Ling, S.W.S., (2020). Regional economic integration and income inequality in selected ASEAN countries. International Journal of Academic Research in Business and Social Sciences, 10(2): 648-664.
- Embong, A.R., (2015). State, Development and Inequality in Selected ASEAN Countries: Internal and External Pressures and State Responses (No. 2015-52). Copenhagen Discussion Papers.
- ESCAP, U., (2014). Confronting inequalities in Asia and the Pacific: the role of social protection.
- Ezcurra, R., & Del Villar, A. (2021). Globalization and spatial inequality: Does economic integration affect regional disparities?. The Annals of Regional Science, 67(2):335-358.
- Gennaioli, N., La Porta, R., Lopez-de-Silanes, F., & Shleifer, A. (2013). Human capital and regional development. The Quarterly Journal Of Economics, 128(1): 105-164.
- I Ketut Patra, A. H. (2022). Pengaruh Pertumbuhan Ekonomi Terhadap Ketimpangan Pembangunan Di Kota Palopo. Elastisitas Jurnal Ekonomi Pembangunan, 4(2).
- Jhingan, M. (2012). Ekonomi Pembangunan dan Perencanaan. Jakarta: PT. Raja Grafindo Persada.
- Kiton, M. A. (2019). Analisis Ketimpangan Pembangunan Ekonomi Di Provinsi Sumatera Utara. Jurnal Ilmiah Smart, 3(2).
- Lessmann, C., 2012. Regional inequality and decentralization: an empirical analysis. Environment And Planning, 44(6):1363-1388.
- Martin, R. and Sunley, P., 2020. Regional economic resilience: Evolution and evaluation. In Handbook on regional economic resilience (pp. 10-35). Edward Elgar Publishing.
- Milanovic, B. (2016) Global Inequality: A New Approach for the Age of Globalization. Harvard University Press.
- Neffke, F., Hartog, M., Boschma, R., & Henning, M. (2018). Agents of Structural Change: The Role Of Firms And Entrepreneurs In Regional Diversification. Economic Geography, 94(1): 23-48.
- Peraturan Menteri Dalam Negeri No. 13 tahun 2006 tentang Pengelolaan Keuangan Daerah.
- Rodríguez-Pose, A., Tselios, V. Inequalities in income and education and regional economic growth in western Europe. Ann Reg Sci 44, 349–375 (2010). https://doi.org/10.1007/s00168-008-0267-2
- Rodríguez-Pose, A., & Wilkie, C. (2017). Institutions and the entrepreneurial discovery process for smart specialization. Governing smart specialization, 34-48.
- Sanogo, T. (2019). Does fiscal decentralization enhance citizens’ access to public services and reduce poverty? Evidence from Côte d’Ivoire municipalities in a conflict setting. World Development, 113: 204-221.
- Siburian, M.E. (2021). Fiscal Decentralization, Regional Income Inequality, and the Provision of Local Public Goods: Evidence from Indonesia. Journal of Economic Development, 46(4): 87-104.
- Song, C., Zhang, Q., Li, X., & Zhang, A. (2024). Co-agglomeration of the culture and tourism industries in Chinese cities. International Journal of Tourism Cities, 10(2): 491-508.
- Todaro, M.P., & Smith, S.C. (2020). Economic development. Pearson UK.
- Venables, A. (2019). Economic Geography and Trade. Oxford Research Encyclopedia of Economics and Finance. Retrieved 6 Feb. 2025, from https://oxfordre.com/economics/view/10.1093/acrefore/9780190625979.001.0001/acrefore-9780190625979-e-332.
- Woyanti, b. A. (2021). Analisis Pengaruh Populasi, Pertumbuhan Ekonomi, TPAK Dan Ipm Terhadap Ketimpangan Pembangunan Di Kawasan Barlingmascakeb 2013-2019. Entrepreneurship, 4 (1).
Referensi
Agustina, R., & Firdaus, M. (2022). Analisis Ketimpangan Pendapatan di Indonesia Tahun 2011-2022. Universitas Pendidikan Indonesia.
Arifin, L. V. (2018). Analisis pengaruh pertumbuhan ekonomi, aglomerasi dan tingkat pengangguran terhadap ketimpangan antar wilayah kabupaten/kota di provinsi kalimantan timur, Jurnal Ilmu Ekonomi, 2, 2.
Arsita, A. (2019). Analisis pengaruh pertumbuhan ekonomi, ipm, aglomerasi, dan belanja pemerintah daerah terhadap ketimpangan pembangunan antar wilayah kabupaten/kota di provinsi banten tahun 2013-2017. Skripsi: Fakultas Ekonomi dan Bisnis Universitas Islam Negeri Syarif Hidayatullah Jakarta.
Avelino, G., & Coronel, D.A. (2021). Macroeconomic Determinants of Economic Growth in Developing Countries: A Cross-Sectional Analysis. Journal of Business and Economic Options, 4(1):16-24.
Bonet, J. (2006.). Fiscal Decentralization and Regional Income Disparities": Evidence From The Colombian Experience. Original Paper Regional Economics, 40: 661-676 Colombia.
Chrisetyoningrum, A. M. (2022). Analisis pengaruh aglomerasi industri, jumlah penduduk terhadap tingkat disparitas pendapatan antar kabupaten/kota di provinsi jawa tengah tahun 2016-2020. Diponegoro Journal Of Economics, 11(1).
Ean, T.G., Mansor, S.B.A., & Ling, S.W.S., (2020). Regional economic integration and income inequality in selected ASEAN countries. International Journal of Academic Research in Business and Social Sciences, 10(2): 648-664.
Embong, A.R., (2015). State, Development and Inequality in Selected ASEAN Countries: Internal and External Pressures and State Responses (No. 2015-52). Copenhagen Discussion Papers.
ESCAP, U., (2014). Confronting inequalities in Asia and the Pacific: the role of social protection.
Ezcurra, R., & Del Villar, A. (2021). Globalization and spatial inequality: Does economic integration affect regional disparities?. The Annals of Regional Science, 67(2):335-358.
Gennaioli, N., La Porta, R., Lopez-de-Silanes, F., & Shleifer, A. (2013). Human capital and regional development. The Quarterly Journal Of Economics, 128(1): 105-164.
I Ketut Patra, A. H. (2022). Pengaruh Pertumbuhan Ekonomi Terhadap Ketimpangan Pembangunan Di Kota Palopo. Elastisitas Jurnal Ekonomi Pembangunan, 4(2).
Jhingan, M. (2012). Ekonomi Pembangunan dan Perencanaan. Jakarta: PT. Raja Grafindo Persada.
Kiton, M. A. (2019). Analisis Ketimpangan Pembangunan Ekonomi Di Provinsi Sumatera Utara. Jurnal Ilmiah Smart, 3(2).
Lessmann, C., 2012. Regional inequality and decentralization: an empirical analysis. Environment And Planning, 44(6):1363-1388.
Martin, R. and Sunley, P., 2020. Regional economic resilience: Evolution and evaluation. In Handbook on regional economic resilience (pp. 10-35). Edward Elgar Publishing.
Milanovic, B. (2016) Global Inequality: A New Approach for the Age of Globalization. Harvard University Press.
Neffke, F., Hartog, M., Boschma, R., & Henning, M. (2018). Agents of Structural Change: The Role Of Firms And Entrepreneurs In Regional Diversification. Economic Geography, 94(1): 23-48.
Peraturan Menteri Dalam Negeri No. 13 tahun 2006 tentang Pengelolaan Keuangan Daerah.
Rodríguez-Pose, A., Tselios, V. Inequalities in income and education and regional economic growth in western Europe. Ann Reg Sci 44, 349–375 (2010). https://doi.org/10.1007/s00168-008-0267-2
Rodríguez-Pose, A., & Wilkie, C. (2017). Institutions and the entrepreneurial discovery process for smart specialization. Governing smart specialization, 34-48.
Sanogo, T. (2019). Does fiscal decentralization enhance citizens’ access to public services and reduce poverty? Evidence from Côte d’Ivoire municipalities in a conflict setting. World Development, 113: 204-221.
Siburian, M.E. (2021). Fiscal Decentralization, Regional Income Inequality, and the Provision of Local Public Goods: Evidence from Indonesia. Journal of Economic Development, 46(4): 87-104.
Song, C., Zhang, Q., Li, X., & Zhang, A. (2024). Co-agglomeration of the culture and tourism industries in Chinese cities. International Journal of Tourism Cities, 10(2): 491-508.
Todaro, M.P., & Smith, S.C. (2020). Economic development. Pearson UK.
Venables, A. (2019). Economic Geography and Trade. Oxford Research Encyclopedia of Economics and Finance. Retrieved 6 Feb. 2025, from https://oxfordre.com/economics/view/10.1093/acrefore/9780190625979.001.0001/acrefore-9780190625979-e-332.
Woyanti, b. A. (2021). Analisis Pengaruh Populasi, Pertumbuhan Ekonomi, TPAK Dan Ipm Terhadap Ketimpangan Pembangunan Di Kawasan Barlingmascakeb 2013-2019. Entrepreneurship, 4 (1).