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Muhammad Ferdiansyah, Muhammad
Prodi Bimbingan Konseling Univ PGRI Palembang
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Journal : Jurnal Varian

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Panel Data Regression Modeling with Weighted Least Squares Method Using Fair Weights Ferdiansyah, Muhammad; Raupong, Raupong; Siswanto, Siswanto
Jurnal Varian Vol. 8 No. 2 (2025)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v8i2.4392

Abstract

Panel data regression is a robust method for analyzing relationships between dependent and independent variables by combining time-series and cross-sectional data. Its reliability hinges on key assumptions, particularly homoscedasticity. Violations, known as heteroscedasticity, lead to inefficient estimates and biased inference, as estimators fail to meet the Best Linear Unbiased Estimator criteria. The Weighted Least Squares (WLS) method addresses heteroscedasticity by weighting observations based on the inverse of their variance. WLS assumes prior knowledge of the heteroscedasticity structure, which is often impractical, creating gap in evaluating its effectiveness compared to alternative methods. The purpose of this study is to examines life expectancy in South Sulawesi as the dependent variable, with expected years of schooling, per capita expenditure, and average years of schooling as independent variables. The research methode used WLS with reasonable weighting, successfully addressing heteroscedasticity. The fixed-effects model was identified as the most appropriate, with an R-squared of 99.45%. Life expectancy was explained by the model. Results shows all variables positively and significantly influence life expectancy. In conclusion, the WLS method effectively overcomes heteroscedasticity in panel data regression, providing reliable estimators. This study highlights the importance of method selection in panel data analysis and offers insights for policymakers aiming to improve life expectancy in South Sulawesi.
Co-Authors Agus Salim Wardana Agustiawan, Referano Ahmad Rofi Suryahadikusumah Akmal Sutja Alridho Lubis, Muhammad Alridho, Muhammad Amalia, Dita Sephira Amalianita, Berru Ananta D, Febriola Tesya Andi Yaksa, Rully Andriasari, Sevi Ardianto, Feby Arif, Yeye Muhammad Arifki, Kayla Dwi Aris Munandar arizona, arizona Artita, Exsa Cahya, Bellin Dwi Indah Daeli, P. Rahmat Daeli, Pasti Rahmat Daeli, Rahmat P. Dede Hermawan Devi Anggraini Elsa Tri Mukti Emosda, Ratna Herawati Ervina Mukharomah, Ervina Faiq Nurraihan Fitriana Fitriana, Devi Halizah, Tiara Hamdi, Muhammad Hasanah Harahap, Nur Heri Azwansyah Ida Ayu Putu Sri Widnyani Ihsan, Nasheul Indah Permata Sari Indah Sari Indra Dwisaputra Indra Indra Iqbal Nugraha, Muhammad Kalfahny, Rara Collin Kamaruddin, Mariah binti Kaserero, Subira Kurniasari Kurniasari, Kurniasari Kusaini, Utami Niki Kusuminingrum, Fellina Dwi Lidia Olga Lovita, Audra Luvitasari, Vivit Manurung, Patricia Mora Mardiani Mardiani Marelina, Anggi Maryani, Ingka Mayasari, Fitri Muhammad Alridho Lubis Muhammad fauzan Muhammad Zulfikar Muhammad Zulfikar MUHAMMAD ZULFIKAR Mustaghfirin Mustaghfirin Nopriyani, Atika Noverina, Romadhona Nugroho, M. Dwi Oki Putri Damanik, Cimmi Oktaviana, Vivi Purnamasari, Syska Putri, Amelia Putri, Fyni Afrilyani Putri, Zahra Ameilia Putry, Willy Ade Rabbani, Raihan Athiyyah Raditya Bagus Surya Kelana, I Putu Rahma Ramadhoni, Sri Rahmadia, Suci Rahman, Tazkia Aulia Raja Guk Guk, Reski Rasimin Rasimin, Rasimin Raupong, Raupong Regilsa, Muhammad Riki Gana Suyatna Rizqi Abdul Aziz, Salman Rohmadi Rohmadi Rully Andi Yaksa Rully Andi Yaksa, Rully S Siswanto Sahita, Fathur Rahmani Samudra, Wahyu Saputra Pardede, Alvian Sarip Nawawi, Deded Sa’adah, Khilyatus Septiani, Elsa Trista Setyaningsih, Mukti Lestari Sintia, Bella Siti Kholifah Kamino Sofia, Syahwa Sugeng Dwiono Surtiyoni, Endang Surya Kusumah, Sukma Suryahadikusumah, Ahmad Rofi Syaharani, Farah Syifa, Navila Inasis Thohiroh, Nazila Syifa Usana, Usana Valentine, Fatresia Vianny, Audra Lovita Wulandari, Lusiana YANTO YANTO Yuniarti, Erliza Zubaidah R, Zubaidah