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All Journal Sosiohumaniora Jurnal Akuntansi dan Ekonomika SENTRALISASI Aptisi Transactions on Technopreneurship (ATT) Dinasti International Journal of Education Management and Social Science Jurnal Ilmiah Manajemen Kesatuan Dinasti International Journal of Digital Business Management Jurnal Scientia Airlangga Journal of Innovation Management Jurnal Manajemen Pendidikan dan Ilmu Sosial (JMPIS) Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Jurnal Teknologi dan Bisnis International Journal of Community Service & Engagement Ekonam : Ekonomi, Akuntansi dan Manajemen Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) INTERNATIONAL JOURNAL OF CULTURAL AND SOCIAL SCIENCE JEMSI (Jurnal Ekonomi, Manajemen, dan Akuntansi) International Journal of Science and Society (IJSOC) Indonesian Journal of Economics and Management Jurnal Locus Penelitian dan Pengabdian Jurnal Ilmiah Mahasiswa (JIMAWA) Journal of General Education and Humanities Journal of Accounting and Finance Management (JAFM) International Journal of Advanced Multidisciplinary Jurnal Manajemen Bisnis Kewirausahaan Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Journal of Public Representative and Society Provision Eduvest - Journal of Universal Studies Research Horizon IIJSE Journal Integration of Management Studies Siber International Journal of Digital Business EDUKASI Greenation International Journal of Law and Social Sciences Greenation International Journal of Tourism and Management International Journal of Management, Economic and Accounting
Nunung Ayu Sofiati (Efi)
Universitas Indonesia Membangun
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Journal : Journal of Public Representative and Society Provision

 1 
Comparative Analysis of Active and Passive Portfolios with the Single Index Model and Capital Asset Pricing Model in Indonesia: Policy Directions in the Capital Market Sudarmadji, Harrys; Sudaryo, Yoyo; Sofiati, Nunung Ayu; Ismail, Gurawan Dayona; Sumawidjaja, Riyandi Nur
Journal of Public Representative and Society Provision Vol. 5 No. 3 (2025): Journal of Public Representative and Society Provision
Publisher : Pusat Studi Pembangunan dan Pemberdayaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55885/jprsp.v5i3.727

Abstract

This research conducts a comparative analysis between active and passive investment portfolios using two fundamental models in finance: the Single Index Model (SIM) and the Capital Asset Pricing Model (CAPM). The study focuses on stocks traded on the Indonesia Stock Exchange (IDX) that were not consistently included in the prestigious LQ45 Index during the period from January 2015 to June 2025. Using a rigorous quantitative method, the research compares portfolio performance, return, and risk under different strategies. The results conclusively indicate that portfolios designed with the Single Index Model consistently outperform those based on CAPM, and that active strategies deliver superior performance compared to passive ones. Beyond financial performance, the findings also carry significant policy implications. The consistent superiority of SIM suggests that regulators and market authorities should integrate simplified yet effective portfolio models into investor education initiatives. Similarly, the outperformance of active strategies highlights the importance of strengthening corporate disclosure standards and ensuring fair access to timely information, so that both institutional and retail investors can benefit equitably. By linking quantitative evidence with governance concerns, this study provides valuable insights for investors while offering policy directions to enhance transparency, inclusivity, and investor protection in Indonesia’s capital market.
The Role of Employee Commitment in Mediating the Influence of Transformational Leadership, Work Environment and Work Motivation on the Performance of Generation Z Human Resources G, Syahrul Nursapni; Aryanti, Asti Nur; Dayona, Gurawan; Sofiati, Nunung Ayu; Muttaqin, Ridlwan
Journal of Public Representative and Society Provision Vol. 6 No. 1 (2026): Journal of Public Representative and Society Provision
Publisher : Pusat Studi Pembangunan dan Pemberdayaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55885/jprsp.v6i1.829

Abstract

The purpose of this study is to examine how employee commitment functions as a mediator in the relationship between the performance of Generation Z HR at the Timiangan Raya Farmers Cooperative Garden and transformational leadership, work environment, and work motivation. SEM-PLS was utilized for analysis in this quantitative investigation with 55 respondents. All of the constructs demonstrated strong validity and reliability, according to the measurement test results (loading factor > 0.70; composite reliability 0.94–0.97). Idealized impact on transformational leadership, non-physical aspects on the workplace, the need for accomplishment on work motivation, and emotional commitment on the commitment variable were the characteristics that contributed the most. According to the structural test results, transformational leadership (β = 0.638; p = 0.005) and the work environment (β = 0.524; p < 0.001) were the strongest factors influencing HR performance, while the work environment was the most dominant variable influencing commitment (β = 0.958; p < 0.001). Although it had a smaller coefficient (β = –0.156; p = 0.015), work motivation also had an impact. The results of the mediation test indicated that while commitment did not mediate the impact of the work environment (p = 0.157), it did mediate the influence of transformational leadership (p = 0.016) and work motivation (p = 0.042) on HR performance. With an R2 value of HR performance = 0.953 and an R2 value of commitment = 0.945, the research model demonstrated exceptionally high predictive power. These results demonstrate that the quality of the work environment and leadership have the most effects on boosting the commitment of Generation Z employees. As a result, performance enhancement efforts should concentrate on fostering a positive work environment and motivating leadership.
Co-Authors Abdul Aziz Mubarok, Dadan Ade Salman Alfarisi Admaja, Firma Agustin Dwi agung setiawan Albert Gamot Malau Aldi Rahman Lazuardi Alfarisi, Ade Salman Ali , Mochammad Mukti Ali, Mariyuana Abdussamad Ali, Mochamad Mukti Amanati, Nuzul Ana Hadiana Ana Hadiana, Ana Andi Sukandi Andrean, Meilani Eka Putri Andriasan Sudarso Anggono Anggono Raras Tirto Sakti Anggono Raras Tirto Sakti Anggono Raras Tirto Sakti Anggraeni, Yulia Dyah Anindya, Sevina Hanisa April Gunawan Malau Aris Setiyani Aris Setiyani, Aris Asep Toni Muharam Asti Nur Aryanti Asti Nur Aryanti Astiana Nengsi Astrin Kusumawardani Azis, Dadan Abdul Aziz, Dadan Abdul Benny Bernadus Bernadus, Benny Cahyono, Yoyok Cecep Pahrudin Chandra, Rama Christimulia Purnama Trimurti Dadan Abdul Aziz Mubarok Dadan Abdul Aziz Mubarok Dadan Abdul Aziz Mubarok Daffa, Fauzan Dayan Hakim Natigor Dayon, Gurawan Dayona Ismail, Gurawan Dayona, Gurawan Dedi Kurniawan Detya Wiryany Devyanthi Syarif Dyah Purnamasari Egi Fernandez Ekapaula, Rolla Fadhilah, Alfi Fauzi Fajar, Kartika Bunga Fauzan Daffa Fauzy, Ryan Marshal Febrianto Febrianto, Febrianto Febriyanti, Karina Fernandez, Egi Fitria Ariyani Fitria Ariyani Frans, Raja G, Syahrul Nursapni Ganesha, Dicky Tri Gurawan Dayona Gurawan Dayona Ismail Gurawan Dayona Ismail Gustiawan, Rudi Hamdani, Deni Hamdani, Erico Haris Oky Adi Supinta Hendriawanto, Hendriawanto Herlina, Heni Hikmah, Agung Mohamad Hisashi, Rendy Mahardhika Indah Susanti Indra Sani Irving Ignatius Paul Luntungan Irving Irving Ignatius Paul Luntungan Ismail, Gurawan Dayona Ita Kumaratih Jaya, Rama Chandra Jordan, Reza Josua Panatap Soehaditama Jupri Pringadi Kamal, Muhhammad Ikhsan Kartika Nuradina Khairunisya, Hania Kumaratih, Ita Lazuardi, Aldi Rahman Lili Suryati Louise Panggabean, Helena Luntungan, Irving Ignatius Paul Luntungan, Irving Irving Ignatius Paul Meilani Eka Putri Andrean Mochammad Mukti Ali Mochammad Subagio Mohamad Zaini, Mohamad Muhammad Ishar, Muhammad Mukti Ali, Mochamad Mukti Ali, Mochammad Mulyawan Safwandy Nugraha Munjinadir, Hafid Muttaqin, Ridlwan Nana Trisnawati Nandan Limakrisna Nengsi, Astiana Nenobais, Manoakh Novia Indah Lestari Noviani, Dinda Nur Mastuti, Dian Nur Sumawidjaya, Riyandi Nuradina, Kartika Palupi Permata Rahmi Palupi Permata Rahmi Pertiwi, R. Dewi Prasetiyo, Wildan Guretno Pratiwi, Nunur Fitri Prayoga, Rahmat Prilaksono, Kursusantyo Dudung Primadi Candra Susanto Prinska Damara Sastri Pujianto, Gatot Purbanuara Parlindungan Sitorus Purnamasari, Weny Purwoko, Harry Puspita, Irna Puspo Arianty, Kiki Rama Chandra Jaya Raras Tirto Sakti, Anggono Rendi, Pras Rendy, Pras Ridlwan Muttaqin Ridwan Ramadhan Rimayani, Rimayani Rintis Eko Widodo Riyandi Nur Sumawidjaja Riyandi Nur Sumawidjaya Rizki Fathurrahman Septian Rohmatullah Rona Tumiur Mauli Carolin Simorangkir Safitri, Meilina Sani, Indra Sastri, Prinska Damara Setiawan, Naufal Alip Putra Sidjabat, Sonya Sofyan, Hadiyan Nur Solihah, Maya Sonya Sidjabat Sudarmadji, Harrys Sudaryo , Yoyo Sugandi, Akhmad Sugiarti Sugiarti Suhendra, Agus Sujatmika, Dendi Sumawidjaya, Riyadi Nur Sumawidjaya, Riyandi Nur Sutisna Sutisna Syarif, Devyanthi Tedy, Hilmanius Thessa Tri Astuty Tjipto Sajekti Viryal Iga Utari Wardana, Wikrama Wiara Sanchia Grafita Ryana Devi Widodo, Rintis Eko Widyastuti Nurmalia Utami WIjayanthi, Ida Ayu Trisna Wikrama Wardana Wiryani, Detya Yosi Pahala Yoyo Sudaryo Yoyo Sudaryo Yuningsih, Salsa Billa Putri