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Oktaviyani, Henny
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Journal : Journal of Social And Economics Research

 1 
MODEL ARIMA BOX-JENKINS UNTUK PERAMALAN PERGERAKAN HARGA SAHAM PT. ASTRA INTERNATIONAL TBK Shalahuddin, M.; Oktaviyani, Henny
Journal of Social and Economics Research Vol 6 No 2 (2024): JSER, December 2024
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jser.v6i2.715

Abstract

Peramalan harga saham merupakan salah satu aspek yang penting dalam analisis keuangan dikarenakan berperan penting bagi investor dalam membuat strategi investasinya. Ketepatan dalam memprediksi harga saham tidak hanya membantu investor dalam mengoptimalkan keuntungan yang didapatkan tetapi juga membantu investor dalam meminimalkan risiko kerugiannya. Penelitian ini bertujuan untuk menentukan model yang paling akurat dalam meramalkan harga saham penutupan PT. Astra International Tbk menggunakan pendekatan Box-Jenkins ARIMA (Autoregressive Integrated Moving Average). Data yang digunakan berupa data kuantitatif harga saham penutupan bulanan PT. Astra International Tbk dari Juli 2009 hingga Juni 2024, yang diolah menggunakan perangkat lunak Minitab. Hasil analisis menunjukkan bahwa model terbaik adalah ARIMA (1,1,1), yang terdiri dari komponen AR orde 1, MA orde 1, dan satu kali proses differencing. Model ARIMA (1,1,1) terbukti memenuhi kriteria signifikansi pada setiap komponennya dan memiliki residual yang bersifat white noise atau acak.
EXPLORING QRIS ADOPTION AMONG UNIVERSITY STUDENTS USING THE UTAUT MODEL Shalahuddin, M.; Oktaviyani, Henny; Bella, Cean Maria
Journal of Social and Economics Research Vol 7 No 1 (2025): JSER, June 2025
Publisher : Ikatan Dosen Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jser.v7i1.994

Abstract

Digital transformation in the financial sector has encouraged the use of non-cash payment systems, one of which is the Quick Response Indonesian Standard (QRIS) issued by Bank Indonesia. Students, as digital natives, are seen as one of the segments with the potential to drive this change. This study aims to analyze the intention to use QRIS among students at Sriwijaya University using the Unified Theory of Acceptance and Use of Technology (UTAUT) model. Data was collected through an online questionnaire distributed to 240 respondents, and the analysis technique used was Structural Equation Modeling - Partial Least Squares (SEM-PLS). The results indicate that Performance Expectancy (PE), Social Influence (SI), and Facilitating Conditions (FC) significantly influence Behavioral Intention (BI), while Effort Expectancy (EE) does not have a significant influence. The results also conclude that Facilitating Conditions (FC) and Behavioral Intention (BI) influence Usage Behavior (UB). The findings provide insights into the factors that partially influence the intention to use QRIS and how to develop strategies to encourage QRIS usage among the younger generation.
Co-Authors Andri Zuliansyah, Muhammad Aprillita, Lisa Bella, Cean Maria Busroh, Firman Freaddy Dameria Siregar, Lina Dekas, Rikkie Faraditha, Aqila Farla, Wita Firmansyah Hanna Patricia, Grase Ibnu Zainal, Rabin Khairo, Fatria M. Shalahuddin MESRA MESRA, MESRA Muhammad Shalahuddin Muhammad Sobri Nia Meitisari Oktavianti, Santi Patur Patur, Patur Santi Oktavianti Sari, Nopika Teuku Muhammad Haqiqi, Teuku Muhammad Vanesha Rahmania Vanesha Rahmania