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All Journal Semantik VISIKES E-Bisnis : Jurnal Ilmiah Ekonomi dan Bisnis Jurnal Manajemen Dayasaing Journal of Information System Ikonomika : Jurnal Ekonomi dan Bisnis Islam Jurnal Mirai Management Jurnal Maneksi (Management Ekonomi Dan Akuntansi) Jurnal EMT KITA Journal of Economic, Bussines and Accounting (COSTING) Applied Industrial Engineering Journal Jurnal Ekonomi, Manajemen Akuntansi dan Perpajakan (Jemap) Owner : Riset dan Jurnal Akuntansi OIKOS: Jurnal Kajian Pendidikan Ekonomi dan Ilmu Ekonomi YUME : Journal of Management Journal of Innovation in Business and Economics Business Management Analysis Journal (BMAJ) Jurnal Ilmiah Edunomika (JIE) Management Studies and Entrepreneurship Journal (MSEJ) Jurnal Inovasi Ekonomi Science Midwifery Abdimasku : Jurnal Pengabdian Masyarakat EKONOMI, KEUANGAN, INVESTASI DAN SYARIAH (EKUITAS) JURNAL CAPITAL : Kebijakan Ekonomi, Manajemen dan Akuntansi International Journal of Research in Community Services JURNAL ILMIAH GLOBAL EDUCATION MANAJEMEN ProBisnis : Jurnal Manajemen Dinamika SWARNA Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Jurnal Indonesia Sosial Sains Studies in English Language and Education Innovative: Journal Of Social Science Research Wawasan : Jurnal Ilmu Manajemen, Ekonomi dan Kewirausahaan Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi IIJSE Jurnal Informatika: Jurnal Pengembangan IT FINANCE : International Journal Of Management Finance Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam E-Amal: Jurnal Pengabdian Kepada Masyarakat Jurnal Multidisiplin Indonesia International Journal of Accounting, Management, and Economics Research : Ijamer Proceeding of The International Conference on Management, Entrepreneurship, and Business Jurnal Akuntansi, Ekonomi dan Manajemen Bisnis Jurnal Pengabdian Kepada Masyarakat Indonesia Journal of Management Economics and Financial Accounting Jurnal Riset dan Inovasi Manajemen Optimal: Jurnal Ekonomi dan Manajemen Economics and Digital Business Review
Dwi Eko Waluyo
Fakultas Ekonomi Dan Bisnis, Universitas Dian Nuswantoro
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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IMRAD, synthesis, and hedging within expert academic writing to encourage a world discussion platform Jumanto Jumanto; Dwi Eko Waluyo; Aris Puji Purwatiningsih; Pulung Nurtantio Andono; Raden Arief Nugroho; Ismarita Ramayanti; Asnul Dahar Bin Minghat
Studies in English Language and Education Vol 11, No 3 (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/siele.v11i3.34776

Abstract

This paper examines IMRAD, synthesis, and hedging within expert academic writing to encourage a world discussion platform and to enhance manuscript writing for internationally reputable journals. The research utilized 25 Quartile-1 Scopus-indexed articles from 25 scholarly journals from 2022 and 2023 publications across different subject areas. Through online searching, observation, and interpretive techniques, the patterns of IMRAD, its synthesis, and the use of hedging within the synthesis were analyzed and identified as crucial elements for creating a manuscript that serves as a world discussion platform. Based on the systematic observation and interpretation of the 25 data sources, the research findings were discussed across three aspects: the IMRAD pattern, synthesis, and hedging. The findings revealed that symmetrical IMRAD patterns were rarely employed by authors of Quartile-1 Scopus-indexed journals, with various patterns being applied and the largest proportion focusing on different aspects. Synthesis was utilized by all authors of the 25 journal articles, and hedging or cautious language was used by most authors. Authors worldwide may benefit from the results of this research when writing manuscripts to be submitted to internationally reputable journals. Additionally, academic writing teachers can use the proposed interpretive model and research results to teach expert academic writing to their students, thus enhancing the quality of student academic writing and enabling the publication of their papers in internationally reputable journals.
Optimization Of Portofolio Using NSGA-II Between Conventional and Shariah Stocks in Turkey Marselly Dewa Utama; Dwi Eko Waluyo; Ana Kadarningsih; Pradana Jati Kusuma
Journal of Management Economics and Financial Accounting Vol. 2 No. 1 (2026): June: Journal of Management Economics and Financial Accounting (JOMEFA)
Publisher : Denasya Smart Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69714/nee31631

Abstract

This study addresses the critical need for effective portfolio optimization in investment decision-making, particularly given the increasing complexity of stock types and classifications, such as conventional and Sharia-compliant indices in Turkey. This research aims to: (1)identify the optimal stock combinations across conventional, sharia, indexed in both, and combined, (2) analyze their efficient frontiers, and (3) compare performance ratios (Sharpe, Sortino, Omega) and expected returns for each group. Using a quantitative descriptive method, this study applies the Non-Dominated Sorting Genetic Algorithm II (NSGA-II) to optimize portfolios based on historical daily closing prices of BIST100 and KATILIM50 index stocks from January 3, 2022, to December 30, 2025. This finding indicates a trade-off between risk and return across all portofolio groups. A conventional portfolio alone offers the highest expected returns but also higher risk, while a Sharia-compliant portfolio alone provides lower returns and risk, suitable for investors who prioritize Sharia compliance. The combined portfolio group showed superior risk-adjusted performance, particularly in the Sharpe and Omega ratios, indicating better diversification potential with lower risk and competitive returns. Meanwhile, groups that are listed on both indices performed moderately. This research provides valuable academic references for technical and fundamental analysis in portfolio management, emphasizing that optimal portfolio selection is highly dependent on investor risk preferences.
NSGA-II Portfolio Optimization: A Comparison of Shariah Stocks (JII70) and Conventional Stocks (LQ45) Delila Nasywa Ramananda; Dwi Eko Waluyo; Ana Kadarningsih; Suhita Whini Setyahuni
Journal of Management Economics and Financial Accounting Vol. 2 No. 1 (2026): June: Journal of Management Economics and Financial Accounting (JOMEFA)
Publisher : Denasya Smart Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69714/aqjrqs74

Abstract

This study analyzes and compares the performance of shariah and conventional stock portfolios in the Indonesian capital market using the Non-Dominated Sorting Genetic Algorithm II (NSGA-II) method. The study uses daily closing stock price data from January 3, 2022, to December 30, 2025, which was processed into measures of return and risk as the basis for portfolio construction. Optimization was performed by maximizing expected return and minimizing risk to generate an efficient frontier. Portfolio performance was then evaluated using the Sharpe Ratio, Sortino Ratio, and Omega Ratio. The results show that the shariah stock portfolio outperformed the conventional stock portfolio, as evidenced by a Sharpe Ratio of 0.15 compared to 0.04. Nevertheless, a combination portfolio consisting of shariah stocks and conventional stocks yielded the best overall performance, with a Sharpe Ratio of 0.15, a Sortino Ratio of 0.22, and an Omega Ratio of 1.56. These findings indicate that diversification between shariah and conventional stocks can enhance portfolio efficiency and generate more optimal performance compared to using each group of stocks separately. Thus, the NSGA-II method has proven effective in generating optimal portfolios to support investment decision-making in the Indonesian capital market.
Financial Performance As Mediator Between Size, Liquidity, And Ownership On Firm Value B. Andini Nugrahaning Widhi; Herry Subagyo; Retno Indah Hernawati; Vincent Didiek Wiet Aryanto; Dwi Eko Waluyo
Owner : Riset dan Jurnal Akuntansi Vol. 9 No. 1 (2025): Artikel Riset Periode Januari 2025
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/owner.v9i1.2504

Abstract

The world economy has been in turmoil for the past five years, causing an impact on the company's economy due to the Covid-19 pandemic. where this study is to explore how financial performance mediates the impact of company size, liquidity, and foreign ownership on company value in the consumer goods industry listed on the Indonesia Stock Exchange during 2018 to 2022. Regression analysis, along with the Sobel test, is used to test this relationship. Interestingly, despite the expectation that financial performance can bridge the gap between the independent and dependent variables, the results of the Sobel test show no mediation effect. As a result, the relationship between company size, liquidity, foreign ownership, and company value is direct. For further research, expanding the scope of the study to cover various sectors, extending the time period, and combining various financial ratios can provide a more comprehensive understanding.
Peran Mediasi Financial Behavior: Income, Financial Literacy, dan Digital Literacy terhadap Investment Decisions pada Generasi Z di Kota Semarang Izha Rachma Navila; Fakhmi Zakaria; Dwi Eko Waluyo; Dian Prawitasari
Jurnal Akuntansi, Ekonomi dan Manajemen Bisnis Vol. 6 No. 2 (2026): Juli : Jurnal Akuntansi, Ekonomi dan Manajemen Bisnis
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jaemb.v6i2.11538

Abstract

Although 55.07% of capital market investors are under 30 years old and IMDI in Semarang City is very high (58.59), approximately 20-30% of Generation Z still demonstrate suboptimal levels of financial literacy, digital literacy, financial behavior, and investment decision making. This study aims to analyze the influence of income, financial literacy, and digital literacy on investment decisions with financial behavior as a mediating variable among Generation Z in Semarang City. The research method used a quantitative approach with purposive sampling of 115 respondents and was analyzed using PLS-SEM through SmartPLS 4.0. The results show that financial literacy and digital literacy have a significant positive effect on financial behavior and investment decisions, financial behavior has a significant positive effect on investment decisions, and is able to mediate the influence of financial literacy and digital literacy, but income has no effect either directly or through the mediation of financial behavior.
Comparison of Markowitz and Genetic Algorithm Models for Saudi Arabian Stocks Mega Tri Candeni; Dwi Eko Waluyo; Ana Kadarningsih; Yenny Ernitawati
Journal of Management Economics and Financial Accounting Vol. 2 No. 1 (2026): June: Journal of Management Economics and Financial Accounting (JOMEFA)
Publisher : Denasya Smart Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69714/z0rwmk14

Abstract

This study aims to compare the Markowitz method and the Genetic Algorithm in forming an optimal portfolio in the Saudi Arabian stock market, which is known to have dynamic characteristics and high levels of volatility due to the influence of economic reforms, oil price fluctuations, and integration with global markets. The study uses daily closing price data for companies indexed in the Tadawul All Share Index for the period January 2, 2022, to October 30, 2025, obtained through Yahoo Finance. Sample selection uses a purposive sampling method based on data completeness and Coefficient of Variation selection. The optimization process is carried out using the Python programming language through the Efficient Frontier Markowitz approach and the Genetic Algorithm. While portfolio performance evaluation is carried out using the Sharpe Ratio, Sortino Ratio, and Omega Ratio to obtain a more comprehensive assessment of risk and return efficiency. The results show that the Markowitz method tends to produce higher expected returns, but with a greater level of risk, while the Genetic Algorithm produces a portfolio with a relatively lower level of risk and more stability. Furthermore, conventional stock portfolios performed better than Islamic stock portfolios based on the performance ratio evalu-ation used. This finding suggests that portfolio optimization methods should be tailored to investor risk preferences and the characteristics of the investment market.
Analisis Peran Elemen Marketing Mix Jasa Terhadap Keputusan Menggunakan Jasa Perbankan pada BSI Wilayah Pekalongan Emira Imania Utami; Amron Amron; Dwi Eko Waluyo; Pradana Jati Kusuma
El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Vol. 7 No. 8 (2026): El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmal.v7i8.12389

Abstract

This research examines the influence of the process, people, and physical evidence elements on consumers' purchasing decisions at Bank Syariah Indonesia in the City and Regency of Pekalongan. A quantitative approach was applied using data collected from 108 respondents, which were analyzed using SmartPLS through the Partial Least Squares Structural Equation Modeling (PLS-SEM) method. The results reveal that all three service marketing mix components exert a positive and significant impact on purchasing decisions. Notably, the process element emerges as the most dominant factor in shaping customers' buying choices. These results highlight the importance of optimizing service processes to enhance customer decision-making. This study contributes theoretically to the marketing management literature regarding consumer behavior in the Islamic banking industry, as well as practically to Bank Syariah Indonesia in developing marketing strategies and optimizing digital-based services.
PENGARUH LITERASI KEUANGAN, LITERASI DIGITAL DAN PERSEPSI RISIKO TERHADAP PENGGUNAAN MOBILE BANKING DI KALANGAN MAHASISWA SEMARANG Vania Puspita Sari; Dwi Eko Waluyo; Dian Prawitasari; Diana Puspitasari
OIKOS: Jurnal Kajian Pendidikan Ekonomi dan Ilmu Ekonomi Vol 10 No 1 (2025): OIKOS: Jurnal Kajian Pendidikan Ekonomi dan Ilmu Ekonomi
Publisher : Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kemajuan teknologi telah banyak mengubah sistem transaksi keuangan, termasuk munculnya mobile banking—platform digital yang memungkinkan pengguna melakukan aktivitas keuangan secara mudah memakai smartphone. Riset ini mengkaji pengaruh literasi keuangan, literasi digital, dan persepsi risiko pada penggunaan mobile banking pada mahasiswa di Kota Semarang. Tujuan penelitain untuk mengetahui pengaruh literasi keuangan, literasi digital dan persepsi risiko terhadap penggunaan mobile banking di kalangan mahasiswa semarang. Dengan menggunakan metode deskriptif kuantitatif, data dikumpulkan melalui kuesioner online yang disebarkan via Google Forms dengan skala Likert 5 poin. Teknik pengambilan sampel yang diterapkan yakni purposive sampling dan menghasilkan 272 respon valid. Data dianalisis memakai SPSS versi 25 melalui metode regresi linear berganda. Hasil riset memaparkan bahwasannya literasi keuangan, literasi digital, serta persepsi risiko memiliki pengaruh positif serta signifikan pada penggunaan mobile banking, dengan literasi keuangan sebagai faktor yang paling berpengaruh. Secara bersama-sama, ketiga variabel tersebut menjelaskan 88% variasi penggunaan mobile banking, sementara 12% sisanya dipengaruhi oleh faktor lain yang tidak diriset pada studi ini. Saran pada penelitian berikutnya sampel penelitian lebih dari satu daerah dan bisa menambahkan jumlah variabel seperti, harapan kinerja, nilai pribadi dan kepercayaan, kemudahan dalam bertransaksi, dan efektivitas finansial mandiri yang menjadi faktor untuk mempengaruhi penggunaan mobile banking.
A Mediation Analysis of Work Engagement in the Relationship between Transformational Leadership, Organizational Culture, and OCB Irvan Wijaya; Sih Darmi Astuti; Dwi Eko Waluyo; Amalia Nur Chasanah
Jurnal Telekomunikasi dan Informatika Lbh. 3 Àir. 2 (2025): International Journal Of Accounting, Management, And Economics Research (IJAME
Publisher : Fakultas Ekonomi dan Bisnis Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Human resources are the most important and determining assets in an organization. Human resources who are competent, highly motivated and able to work well are the resources needed by the company. Organizational citizenship behavior (OCB) is a concrete form of an employee in every company or organization to lighten the workload of other colleagues, without forgetting the main work that must be done by that individual. Many factors influence OCB, including work engagement, leadership and organizational culture. This research aims to examine the influence of Work Engagement, Leadership and Organizational Culture variables on OCB in PT Fajarmas Murni employees. The population used in this research were all employees of PT Fajarmas Murni who had worked for at least 2 years. The sample in this study was 164 respondents. Data was collected using a survey method using a questionnaire. This research uses Structural Equation Modeling (SEM) data analysis techniques which are operated using the SmartPLS 3 program. The results of the research show that Organizational Culture and Work Engagement have a significant effect on OCB, while transformational leadership has no significant effect and Transformational Leadership has a significant effect on Work Engagement while Organizational Culture does not have a significant effect on work engagement.
Pengaruh Bias Perilaku Terhadap Keputusan Investasi Trader Aktif Generasi Z Di Indonesia Dengan Persepsi Risiko Sebagai Variabel Mediasi Anisya Dwi Deviyanti; Vicky Oktavia; Dwi Eko Waluyo; Pradana Jati Kusuma
JEMAP Vol 9, No 1: April 2026
Publisher : Universitas Katolik Soegijapranata, Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/jemap.v9i1.15242

Abstract

This study aims to examine and analyze the influence of behavioral biases consisting of Overconfidence Bias, Disposition Effect, and Herding Bias on investment decisions, with risk perception as a mediating variable. The focus of this research is on Generation Z active investors in Indonesia who exhibit intensive trading characteristics in the capital market. This study employs a quantitative approach using the Partial Least Square-Structural Equation Modeling (PLS-SEM) method through SmartPLS software. Data were collected from 165 respondents through an online questionnaire using purposive sampling technique.The results indicate that Overconfidence Bias (0.290), Disposition Effect (0.409), and Herding Bias (0.267) have a positive and significant effect on risk perception. Furthermore, risk perception is proven to have a highly dominant positive effect on investment decisions (0.734) with an effect size (f²) value of 1.167, categorized as a large effect. The mediation test confirms that risk perception plays a significant mediating role for all behavioral biases toward investment decisions, where Disposition Effect records the largest indirect effect (0.300). Overall, the research model demonstrates moderate predictive power with an Adjusted R-Square value of 0.521 for investment decisions. These findings emphasize that the psychological mechanisms of young investors in processing risk serve as the primary determinant driving their investment activities amid market volatility.
Co-Authors Adistyana Mardhyatus Sholihah Agus Prayitno Agus Prayitno Agus Triyono Aji Kurniawan Alifa Mei Ajeng Rahayu Amalia Nur Chasanah Amalia, Fariza Amron Amron Amron Amron Amron Amron, Amron Ana Kadarningsih Kadarningsih Anggaini, Fitria Anggraini , Fitria Dewi Puspita Anisya Dwi Deviyanti Aprianti Aprianti, Aprianti Aprillia Fananditya Ariati Anomsari Ariati Anomsari Aris Puji Purwatiningsih Asnul Dahar Bin Minghat B. Andini Nugrahaning Widhi Banu, Azlina Bara Zaretta Batara David Martin Siregar Belladiena, Alfiena Nisa Belzara, Ghea Syahnita Brian Au Batuwael Cahya, Handy Nur Choirunisha, Zalfa Adira Cinantya Paramita Delila Nasywa Ramananda Deva Atalia Zahra Devi Wahyuni Dewi Agustini Dewi Pergiwati Dian Prawitasari Dian Prawitasari Diana Aqmala Diana Puspitasari Dwi Nurul Izzhati Eli Martohap Sinaga Emira Imania Utami Eva Nadia Fakhmi Zakaria Fariza Amalia Fauzi Adi Rafrastara Febriana, Artha Galih Sephiani Rafika Duri Goh, Gerald Guan Gan Handy Nur Cahya Hayu Wikan Kinasih Herlambang, Maulana Yusuf Hernanti, Sania Bunga Pradani Herry Subagyo Herry Subagyo Herry Subagyo Ilyas, Kamal Irvan Wijaya Ismarita Ramayanti Izhatullaili Jumanto Jumanto Kamila Nasywa Putri Klarisa Widiana Pratiwi Krisna Kurniawan Kurniawati, Firlia Ayuk Kusuma, Pradana Jati Lenni Yovita Makhbub Zunaidi Marselly Dewa Utama Mega Ayu Lestari Mega Tri Candeni Mila Elmeida Mochammad Eric Suryakencana Wibowo Muhammad Alvinnur Budiansyah Muhammad Lukmanul Hakim Nadiyatul Mustaufidah Nisrina Hesi Rahmaningtyas Nohan, Rajendra Nurman Ilham Fadzilah Oktoriza, Linda Ayu Paramita, Cinantya Perdana, Reza Kresna Pergiwati, Dewi Permatasari, Noviana Putri Pitaloka Andry Kirana Pradana Jati Kusuma Pradana Jati Kusuma Pramudianto, Chori Baskoro Prawitasari, Dian Pulung Nurtantio Andono Purnomo, Ardiansyach Maulana Puspita Azura Diva Rachmalia Puteri Kusuma Dewi Qurotul Aini Raden Arief Nugroho Rahayu, Alifa Mei Ajeng Ramasamy, Suganthi Respati Wulandari Retno Indah Hernawati Riko Tresno Mulyo Sarah Setyaningrum Sari Ayu Wulandari Sasongko, Teguh Haryo Setiawan, Aries Setyani, Putri Desti Setyo Wahyu Sulistyono Setyo Wahyu Sulistyono Shabira, Azra Salma Sih Darmi Astuti Sih Darmi Astuti Sintaruli Siahaan Siti Fitriyyatul Jamilah Suhita Whini Setyahuni Tiara Kusuma Putri Uci Yuliati udzma, Dyah Safa’atul Ukhti Maylita Haryani Usman Usman Usman Usman v, Amalia Nur Vania Puspita Sari Vicky Oktavia Vicky Oktavia Vincent Didiek Wiet Aryanto Vivia Irvani Wijayanti Wijayanti Wilda Komala Viani Yenny Ernitawati Yenny Ernitawati YESHA NU'MA ARULA PUTRI Zahrotul Umami Zakaria, Fakhmi Zamani, Daffa Ulya