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All Journal IJEBD (International Journal Of Entrepreneurship And Business Development) Al-Kharaj: Journal of Islamic Economic and Business Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Community Empowerment Quantitative Economics and Management Studies Journal Koperasi Dan Manajemen E-JRM Pena Dimas Danadyaksa: Post Modern Economy Journal Journal of Islamic economics Perspectives (JIEP) International Journal of Economics, Business and Innovation Research Asian Journal of Management, Entrepreneurship and Social Science KOPEMAS International Journal of Islamic Business and Economics (IJIBEC)
Abdullah Syakur Novianto
Universitas Islam Malang
Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Mathematics Public Health Social Sciences

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Pengaruh Perilaku Overconfidence Dan Herding Terhadap Keputusan Investasi Saham Pada Generasi Z Di Malang Fahmy Rahma Zafira; Anik Malikah; Abdullah Syakur Novianto
E-JRM : Elektronik Jurnal Riset Manajemen E-JRM : Elektronik Jurnal Riset Manajemen Vol. 15 No. 01
Publisher : UNIVERSITAS ISLAM MALANG

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

Abstract

Abstract This study aims to determine the effect of Overconfidence and Herding on stock invesrment decisions among generation Z investors in Malang. The research method used is a quantitative method with data collection techniques through distributing questionnaires. The research sample consisted of 75 respondents who are generation Z and have stock investment experience. Data were analyzed using multiple linear regression analysis. The results showed that Overconfidence behavior has positive effect on stock investment decisions, while Herding behavior has no effect on stock investment decisions. This indicates that the level of confidence of generation Z investors plays a role in investment decision-making, while the tendency to follow other investor sis not a determining factor. This research is expected to contribute to the development of literacy behavior finance and become a consideration for young investors Keywords: Overconfidence, Herding, Investment Decisions, Generation Z
Analyzing Analyzing Cost of Poor Quality and the Effectiveness of the Welder Performance Qualification Test in Mitigating Cost Inefficiency Risks in Steel Fabrication EPC Projects Mohammad Fuad Zamroni; Nurhidayah; Abdullah Syakur Novianto
Al-Kharaj: Journal of Islamic Economic and Business Vol. 8 No. 3 (2026): Vol. 8 No. 2 (2026): All articles in this issue include authors from 3 countrie
Publisher : LP2M IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/kharaj.v8i3.11463

Abstract

This study examines the effect of Welder Performance Qualification Test (WPQT) implementation on project cost performance through welder competency and repair rate within the Cost of Poor Quality (CoPQ) framework in the steel fabrication EPC industry. A quantitative explanatory approach was employed using data from WPQT records, Ultrasonic Testing (UT) reports, and welder competency questionnaires. The sample consisted of 52 welders involved in the the case project, selected through a census sampling technique. Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results reveal that WPQT positively influences welder competency, while welder competency significantly reduces repair rates. In turn, higher repair rates negatively affect project cost performance by increasing failure costs. Furthermore, welder competency and repair rate mediate the relationship between WPQT and project cost performance. These findings demonstrate that WPQT serves not only as a qualification requirement but also as a strategic quality control mechanism for improving cost performance in EPC projects
Procurement Management Strategy for Zinc Ingots Based on LME Price Volatility: Achieving Cost Reduction Targets and Optimizing Operational Performance in the Hot-Dip Galvanizing Industry Suherman; Nurhidayah; Abdullah Syakur Novianto
Al-Kharaj: Journal of Islamic Economic and Business Vol. 8 No. 3 (2026): Vol. 8 No. 2 (2026): All articles in this issue include authors from 3 countrie
Publisher : LP2M IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/kharaj.v8i3.11465

Abstract

This study aims to analyze the effect of London Metal Exchange (LME) Zinc price volatility and Zinc Ingot procurement management strategies on the company's operational performance through procurement cost efficiency at the participating EPC company. High volatility in global Zinc prices can influence raw material procurement costs and consequently affect the effectiveness of operational performance. Therefore, appropriate procurement strategies are required to control costs and maintain operational efficiency. This study employed a quantitative approach using a survey method, with data collected through questionnaires distributed to 32 respondents involved in the company's procurement, production, and operational activities. The data were analyzed using Partial Least Squares–Structural Equation Modeling (PLS-SEM) with SmartPLS 4 software. The results indicate that LME Zinc price volatility significantly affects procurement cost efficiency and the company's operational performance. Zinc Ingot procurement management strategies also have a significant effect on procurement cost efficiency and operational performance. Furthermore, procurement cost efficiency significantly influences operational performance. The mediation analysis reveals that procurement cost efficiency successfully mediates the effects of both LME Zinc price volatility and Zinc Ingot procurement management strategies on operational performance. These findings suggest that effective commodity price risk management and procurement strategies are essential for improving cost efficiency and supporting the achievement of sustainable operational performance
The Influence of Work-Life Balance and Job Satisfaction on the Performance of Millennial and Gen Z Employees with Employee Engagement as an Intervening Variable Armahfia Amami; M. Ridwan Basalamah; Abdullah Syakur Novianto
Danadyaksa: Post Modern Economy Journal Vol. 4 No. 1 (2026): Post Modern Economy Journal
Publisher : Yayasan Pendidikan Islam Bustanul Ulum Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69965/danadyaksa.v4i1.643

Abstract

Shifts in the workforce's demographic structure have led to workplaces being increasingly dominated by Millennials and Generation Z, presenting new challenges for human resource management—particularly regarding differences in characteristics, communication styles, work ethics, and expectations for work-life balance, all of which can trigger interpersonal conflict and impact productivity. This study aims to analyze and explain the influence of work-life balance (WLB) and job satisfaction on employee performance, with employee engagement serving as an intervening variable, among Millennial and Generation Z employees at PT Jhonlin Agro Raya Tbk in Batulicin, South Kalimantan. A quantitative approach utilizing explanatory research methods was employed. Data collection was conducted through the distribution of questionnaires both in person and via Google Forms using a 1-5 Likert scale. Non-probability sampling was used via a saturated sampling approach, resulting in a total of 291 respondents: 186 Millennials (63.9%) and 105 Generation Z employees (36.1%). The respondent demographic was predominantly male (66.7%), with the majority having a tenure of 1-3 years (49.8%). Data analysis was performed using Partial Least Squares-Structural Equation Modeling (PLS-SEM) with SmartPLS 4.0 software, alongside a Multi-Group Analysis (MGA) approach to compare the generational groups. Evaluation of the measurement model (outer model) revealed that all variable indicators had loading factor values ​​> 0.6 and Average Variance Extracted (AVE) values ​​> 0.5, thereby meeting convergent and discriminant validity requirements the model also demonstrated reliability, with composite reliability values ​​> 0.7. Evaluation of the structural model (inner model) indicated good predictive relevance (Q2 > 0) and a high level of overall model fit (high Goodness of Fit Index: 0.512 for Millennials and 0.657 for Gen Z). The R-squared values ​​for the Millennial generation group indicate that 43.7% of the variation in employee performance (a moderate level) and 50.9% of the variation in employee engagement can be explained by the model. Meanwhile, for the Generation Z group, the model strongly explains 69.3% of the variation in employee performance and 60.8% of the variation in employee engagement. Overall, work-life balance and job satisfaction were found to have a positive impact on both employee engagement and employee performance, with employee engagement serving as an effective mediator bridging this relationship across both workforce generations at PT Jhonlin Agro Raya Tbk.
Co-Authors AA Sudharmawan, AA Aan Irawan Abdillah, Mohammad Rifki Abdul Aziz Abdul Aziz Asy Syifa’ Abdul Kodir Djaelani Achmad Muzakkiy Achmad Naufal Miqdad Adhien Azka Arifatul Ula Adib Qosim Masrukhan Afriyanti, Fitri Agus Hermawan Ahmad Angger Muzaky Almaidah Eva Rosalinda Alnawati, Dinar Eka Alwi Muhamad Amanah, Firnandya Ambarsari, Emmy Amin, Muh. Sirojuddin Amir Faisol Andri Sari Pratama Anggraini, Tasya Meylina Ari Anik Malikah Aprilia, Syifa Kanza Apsarini, Nabila Wahyu Arif Rahwansyah Arif Ruri Abdillah Armahfia Amami Arman, Bima Tiknanda Artamefia, Rachel Amanda Vinka Avila Thio Nafra Agda Adila Awalia, Riski Bahtiar, Dimas Vigo Basyaruddin Faizal Rafi Bella Zakila Berliana Tri Banuwati Bessy, Nilam Sahnur Budi Wahono Chelsea Nur Fadilah Choirunnisa, Firda Cinta, Aura Cynthia Renita Putri Dhedy Setiawan Darsono Dhisma Manzilil Rohma Dinnisa’, Zukhruf Djumilah Hadiwidjojo Elisa Elisa Elvina Hany Dennisa Fadhilah, Gita Maulani Fahmy Rahma Zafira Fani Oktavia Fannani, Muhammad Rovi Tanwirul Fariani, Fariani Fawwaz Achmad Najib Febriyani, Nurlatifa Firdaus, Hilda Alivia Fitri, Elysia Gebbril Oktavia Jaya Haidi, Mukhammad Maulana Hambali Hambali Hatami, Muhammad Heri Pratikto Humayroh, Riza Husna, Fifi Lailatul Ikbar Zakariya Ike Nurmaya Devina Iksan Iksan Iksan Iksan Indah Soleha Ahmad Iqbal Burhanuddin Maulidy Iwansyah Iwansyah Jeni Susyanti Jihan Nabila Qotrunnada Kamilah, Saosan Kamilla, Nahya Izza Krisnawardani, Cynthia Kuncahyo, Angger Kusumas Tutik Wahyuningsah Lailatul Muniroh Laili, Jasilatul Lativa, Rachmah Nur Lestari, Via Ludi Wishnu Wardana Lusy Sukmawati Lydia Putri Irdawati M Wandi Irdiansyah M. Agus Salim Al Fathoni M. Ridwan Basalamah Maschanuddin, Muhammad Agil Masrukhan, Adib Qosim Maulidy, Iqbal Burhanuddin Moh. Abu Ali Winarno Mohammad Fuad Zamroni Mohammad Rizal Mohammad Rizal, Mohammad Mohammad Roisul Amin Mufarrichah, Abidah Muh Bintang Roziq Muhamad, Alwi Muhammad Agus Salim Mulyadi, Rafiqi Dwi Mutiarafani Tri Renata Nanda Anisa Rizki Nanik Wahyuningtyas Nasiruddin, Mukhammad Navila Laila Wardani Nia Wanda Kumala Ningrum, Niken Widya Nita Prihatiningrum Nizam, Muhammad Sahrun Noer Aida Fitriani Nur Diana Nur Hasanah Nur Hidayati Nur Hidayati Nur Rizkiroh Septiani Nuraini Tri Wijayanti Nurhidayah Nurhidayah Nurhidayah Nurhidayah Nurhidayah Nurhijriatul Nuzila, Firdausi Fauziyatin Oki Wahyudi Pandwita, Siska Mareta Papank Abi Sadewa Pertiwi, Ria Dwi Ayu Prasetya, Diva Prasetyo, Moch Richo Puji Handayati Putra, Arif Rahman Surya Putra, Rivaldy Danendra Putri, Cynthia Renita Putri, Fiona Hananto Putri, Intan Sabrina Aziza Rachma, N. Rachmah Nur Lativa Rahma, Putri Anisa Ramadhan, Fathur Ratna Tri Hardaningtyas Reza Firmansah Riski, Kumajaya Novi Riza Humayroh Rohmah, Nabila Alfiyatu Rois Arifin Ronny Malavia Mardani Rufi'i Rully Sabrina Rumawatine, Wildan Reyvaldi Sahla Ramli Sahrul Hidayatullah Samuriah Samuriah Sanches, Olandina de Jesus Saputri, Laila Sandri Sari, Nabila Aisyara Fatiha Shendy Citra Iswandari Shofa, Almas Nazhifan Shofi Mustajibullah Siti Asiyah Siti Asiyah Sofia, Himatus Solikhah, Afiatus Sudarmiatin Suherman Supriyadji, Ifbnu Kurniawan Susilo, Agung Budi Syamsul Arifin Syamsul Arifin Tantri, Diah Ima Novia Tanzil Ilham Usiaman, Aldi Usman Fauzi Utami, Merly Violita Wahyuniar Asri, Nafadzila Wahyuningtiyas, Nanik Wardani, Navila Laila Wardani, Putri Kusuma Widya Dwi Jayanti Wulandari, Yuny Sri Yulia, Fadila Hilma Yusril Ananta Bahrudin Yuzky Maulana Irbad Zainul Muttaqin Zakariya, Ikbar Zuhro, Nurhidayatus Zukhruf Dinnisa’