The Disproportionality Analysis of Sainte-Laguë Method Using Gallagher Index in Banggai Regency Legislative Election 2024

Analisis Ketidakseimbangan Metode Sainte-Laguë Menggunakan Indeks Gallagher dalam Pemilihan Legislatif Kabupaten Banggai Tahun 2024

https://doi.org/10.59414/jmh.v14i1.1304

Authors

  • andi hartati universitas tompotika
  • Rahmad universitas tompotika

Keywords:

Sainte-Lague; Disproporsionality, Legislative Election, Least Squares Index (LSq), Political Parties

Abstract

This study aims to measure and analyze the level of disproporsionality between the votes obtained by political parties and the number of seats they receive in the 2024 legislative election ini Banggai Regency. It also seeks to assess the effectiveness of the Sainte-Lague method ini achieving proportional representation and identify factors contributing to the level of disproporsionality found in the legislative election in Bangggai Regency. This research uses a quantitative approach to analyze the election results data from the 2024 legislative election in Banggai Regency. The quantitative analysis will be conducted using the Least Squares Index (LSq) or Gallagher Index to determine the level of disproporsionality between the percentage of votes obtained by political parties and the percentage of seats they receive in the legislative council. The findings in this study show the the Gallagher Index at the electoral district level show significant disproporsionality. However, whwn calculated for the overall seats in the Regional House of Representatives (DPRD), this index is relatively small. In the electoral district of Banggai Regency, the Gallagher Index results indicate an average above 8 or within the range of 5-10. This suggest that the LSq/Gallagher Index interpretation of the electoral system in Banggai Regency demonstrates moderate disproporsionality. There is a significant diffrence between the percentage of votes and seats, some parties receive more or fewer seats compared to the percentage of votes the obtain, which can lead to dissatisfaction among voters.

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References

Azmi, M. R., & Riyanda, R. (2020). Tinjauan Sistem Proporsional Terbuka Dalam Pemilu Legislatif 2019 Terhadap Dinamika Demokrasi Di Indonesia. UIR Law Review,4(2),9–22.https://doi.org/10.25299/uirlrev.2020.vol4(2). 5858

Benoit, K. (2000). Which Electoral Formula Is the Most Proportional? A New Look with New Evidence. Political Analysis, 8(4), 381–388. https://doi.org/10.1093/Oxfordjournals.Pan.A029822

Burden, B., & Smidt, C. (2020). Evaluating Legislative Districts Using Measures of Partisan Bias and Simulations. Sage Open, 10(4). https://doi.org/ 10.1177/2158244020981054

Chrismayoga, Y. B. (2023). Penerapan Proporsional Terbuka dan Metode Sainte-Lague pada Pemilu 2019 : Studi Kasus Dapil I DPRD Provinsi Jawa Tengah. Syntax Literate ; Jurnal Ilmiah Indonesia, 8(4), 2660–2670. https://doi.org/ 10.36418/syntax-literate.v8i4.11656

de Sousa Filho, A. B. (2021). The use of votes conferred to ineligible candidates in the proportional system: A proposal for interpretation according to the constitution of the sole paragraph of art. 16-A, law n. 9.504/97. Revista Opiniao Juridica, 19(31), 196–223. https://doi.org/10.12662/2447-6641OJ.V19I31.P196-223.2021

Gallagher Index Made Easy. (2016). http://gallagherindex.blogspot.ca/

Gallagher, M., & Mitchell, P. (2006). The Politics of Electoral Systems. The Politics ofElectoral Systems,1–688.https://doi.org/10.1093/0199257566.001.0001

Hamid, R. S., Abror, A., Anwar, S. M., & Hartati, A. (2022). The role of social media in the political involvement of millennials. Spanish Journal of Marketing - ESIC, 26(1), 61–79. https://doi.org/10.1108/SJME-08-2021-0151

Haxhiu, S., & Alidemaj, A. H. (2021). Representative Democracy-its Meaning and Basic Principles. AUDJ, 17(2), 76–91. https://www.doaj.org/article/ 2ee25420ea0045028225f385a428e612

Izzudin, A., Herawati, R., & Tyesta, L. (2019). Implikasi Putusan Dewan Kehormatan Penyelenggara Pemilu Berdasarkan Undang-Undang Nomor 7 Tahun 2017 Tentang Pemilihan Umum Terhadap Proses Pemilu. Diponegoro Law Journal, 8(1), 36–58. https://ejournal3.undip.ac.id/ index.php/dlr/article/view/25168

Lapina, N. (2022). Can the «vertical» give way to the «horizontal»? Scientific and Analytical Herald of IE RAS, 30(6), 165–174. https://doi.org/ 10.15211/ vestnikieran62022165174

Levin, I., & Katz, G. (2011). Modeling Electoral Coordination: Voters, Parties and Legislative Lists in Uruguay. Journal of Politics in Latin America, 3(2), 3–41. https://doi.org/10.1177/1866802x1100300201

Pratama, A., Arizal, A., & Alim, S. (2019). Sound Calculation Simulation System for Distribution of Chair Parliament Using Hare Quota and Sainte Lague Methods. JEECS (Journal of Electrical Engineering and Computer Sciences), 4(2), 703–710. https://doi.org/10.54732/jeecs.v4i2.114

Putra Ode Amane, A., Y Lopulalan, D. L., Garlinia Yudawisastra, H., Rahman, A., Nazif, M., Hartati, A., Palopa, R., Subandi, Y., Santoso Muharam, R., Dini Pravita, V., & Tua Siregar, R. (n.d.). Pembangunan politik. 2022. Retrieved March 7, 2024, from www.freepik.com

Rafyansyah, Fad;i, Z., Almahdali, H., Tampubolon, M., Kusnadi, I. H., Irawan, B., Ismaya, Mustanir, A., Afdhal, Sari, A. R., Sakir, A. R., & Nainggolan, A. A. (2022). Pengantar Ilmu Politik (N. Rismawati (Ed.); Vol. 1, Issue Oktober). Cv widina media utama. https://repository.penerbitwidina.com/ publications 558562/

Setyaning Dwi Putra, F., Abdurohim, D. B., Susila, Y. T., Hartati, A., Putra Ode Amane, A., Musfirowati Hanika, I., Yusanto, Y., Nugroho, H., & Sri Wahyuni, N. (2022). Marketing politik (Teori dan Konsep). www.penerbitwidina.com

Suyono, E., Rusmana, O., & Praptapa, A. (2020). The extent to which participants in the indonesian legislative elections obey the rules. SHS Web of Conferences, 86, 01008. https://doi.org/10.1051/shsconf/20208601008

Sweinstani, M. K. D. (2020a). Formula Konversi Suara Sainte Lague dan Dampaknya pada Sistem Kepartaian: Evaluasi Pemilu Serentak 2019. Jurnal Penelitian Politik,16(2),111.https://doi.org/10.14203/jpp.v16i2.812

Sweinstani, M. K. D. (2020b). Formula Konversi Suara Sainte Lague dan Dampaknya pada Sistem Kepartaian: Evaluasi Pemilu Serentak 2019.Jurnal Penelitian Politik,16(2), 111. https://doi.org/10.14203/jpp.v16i2.812

Taufikkurrahman, T. (2019). Fungsi partai politik pada kekuasaan eksekutif dan legislatif berdasar pada sistem pemerintahan di Indonesia.Jurnal Civics:Media Kajian Kewarganegaraan,16(2),145–153.https://doi.org/ 10.21831/jc.v16i2.20788

Tawaang, F., Nugroho, A. C., Mudjiyanto, B., & ... (2023). Membaca Ulang Konsep Modernisasi Politik, Pembangunan Politik, Dan Demokrasi. … : Jurnal Prodi Ilmu…,4(2),721–750. http://www.ejurnal.ubk.ac.id/index.php/communitarian/article/view/322%0Ahttps://www.ejurnal.ubk.ac.id/index.php/communitarian/article/viewFile/322/213

Wahidin, D. T. S., Muhyidin, A., Iswahyuni, I., & Ilmar, A. (2020). Partai Politik dan Perilaku Pemilih Di Indonesia (Studi Pada Pemilu Legislatif 2009, 2014, dan 2019). Journal of Government and Civil Society, 4(1), 131. https://doi.org/ 10.31000/jgcs.v4i1.2376

Zikri, A. (2024). KPU Tetapkan DPT Banggai. 22–23.

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Published

2026-03-20

How to Cite

hartati, andi, & Rahmad. (2026). The Disproportionality Analysis of Sainte-Laguë Method Using Gallagher Index in Banggai Regency Legislative Election 2024 : Analisis Ketidakseimbangan Metode Sainte-Laguë Menggunakan Indeks Gallagher dalam Pemilihan Legislatif Kabupaten Banggai Tahun 2024 . Jurnal Media Hukum, 14(1), 59–68. https://doi.org/10.59414/jmh.v14i1.1304

Issue

Vol. 14 No. 1 (2026): Jurnal Media Hukum (JMH)

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Articles

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Copyright (c) 2026 andi hartati, Rahmad

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