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All Journal Jurnal Administrasi Bisnis PROFIT : Jurnal Administrasi Bisnis Jurnal Studi Manajemen dan Bisnis Journal of Economic, Bussines and Accounting (COSTING) J-MAS (Jurnal Manajemen dan Sains) SEIKO : Journal of Management & Business Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan NUSANTARA : Jurnal Ilmu Pengetahuan Sosial JURNAL PENDIDIKAN TAMBUSAI Jurnal Pendidikan Ekonomi (JURKAMI) Journal of Economic, Management, Accounting and Technology (JEMATech) Reformasi : Jurnal Ilmiah Ilmu Sosial dan Ilmu Politik JURNAL PEMASARAN KOMPETITIF Jurnal Pemberdayaan Masyarakat International Journal of Economics Development Research (IJEDR) Management Studies and Entrepreneurship Journal (MSEJ) Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah RESLAJ: RELIGION EDUCATION SOCIAL LAA ROIBA JOURNAL EKONOMI, KEUANGAN, INVESTASI DAN SYARIAH (EKUITAS) Nusantara Science and Technology Proceedings Jurnal Revolusi Indonesia Jurnal Bisnis Indonesia Jurnal Disrupsi Bisnis Sawala : Jurnal pengabdian Masyarakat Pembangunan Sosial, Desa dan Masyarakat Jurnal Pelayanan Hubungan Masyarakat IIJSE RESLAJ: Religion Education Social Laa Roiba Journal El-Mujtama: Jurnal Pengabdian Masyarakat J-CEKI PESHUM As-Syirkah: Islamic Economic & Financial Journal Indonesian Journal of Social Sciences and Humanities
Jojok Dwiridotjahjono
Universitas Pembangunan Nasional Veteran Jawa Timur
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences Other

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The Influence of Celebrity Endorsers, Viral Marketing, and Brand Image on Purchase Decision of Facetology Sunscreen Products in the Shopee Marketplace (A Study on Students of the Universitas Pembangunan Nasional Veteran Jawa Timur) Dini Dwi Saputri; Jojok Dwiridotjahjono
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 2 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i2.6424

Abstract

The development of information technology and the internet has changed traditional business processes to become more dynamic through digital platforms. E-commerce, as one of the innovations in online marketing, makes it easy for consumers to shop practically. Shopee is one of the most popular marketplaces in Indonesia with interactive features that support increased sales. Facetology sunscreen products, with modern marketing strategies such as Celebrity Endorser, Viral Marketing, and strong Brand Image, have succeeded in attracting consumers' attention. Indonesia's location on the equator with high sunlight intensity makes sunscreen a primary need for the community. This study uses an associative type with a quantitative approach, with data collection through distributing questionnaires to 155 active student respondents of UPN "Veteran" East Java who have purchased Facetology sunscreen products on the Shopee marketplace. Data analysis in this study includes testing validity, reliability, classical assumptions, multiple linear regression, and hypothesis testing, all of these analysis processes are carried out using the SPSS program. The results of the study show that the variables Celebrity Endorser, Viral Marketing, and Brand Image have a significant influence, both simultaneously and partially, on purchase decisions.
Determinants of the Composite Stock Price Index (JCI) on the Indonesia Stock Exchange (IDX) Based on the Nikkei Stock Exchange 225 Index (N225), Brent Crude Oil Price, and Rupiah Exchange Rate for the Period 2020-2023 Nugroho, Titan Baihaqi Akbar; Dwiridotjahjono, Jojok
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 3 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i3.6547

Abstract

The movement of the Indonesia Composite Stock Price Index (JCI) on the Indonesia Stock Exchange (IDX) is influenced by various domestic and global factors. This study aims to analyze the impact of the Nikkei 225 Index, Brent Crude Oil Prices, and the Rupiah Exchange Rate on JCI during the period 2020-2023. The research adopts a quantitative approach by employing multiple linear regression analysis to process secondary data obtained from Investing.com and Bank Indonesia. The findings indicate that, simultaneously, the three independent variables significantly influence JCI movements. However, when analyzed individually, the Nikkei 225 Index and Brent Crude Oil Prices exert a positive and significant effect on JCI, whereas the Rupiah Exchange Rate does not show a substantial impact. These results suggest that JCI fluctuations are more responsive to global economic changes than to domestic monetary dynamics. The implications of this study highlight the necessity for investors to consider international market conditions as a crucial factor when making investment decisions on the Indonesian stock market. This research contributes to the existing body of literature by providing empirical evidence on the relationship between global and domestic economic indicators and JCI, particularly in the post-pandemic period. The originality of this study lies in its focus on recent economic conditions, offering valuable insights for policymakers, investors, and financial analysts. By addressing the influence of global market trends on JCI, this research underscores the importance of macroeconomic awareness in investment strategies and economic policymaking.
Co-Authors Abdul Rezha Efrat Najaf Alla, Muhammad Anbiya Fath Anggi Dian Lestari Anila, Desi Anissa Lutfita Annisa Dyah Pramesti Arifin, Ahmad Zainul Arniessa, Attania Dwi Aura Rahma, Daniar Wulan Camelia Yully Styowati Damayanti, Affiva Lindi Damayanti, Devina Fitri Danang Adi Nugroho Della Anzelia Sitanggang Dermawan, Fariz Dewi Astuti Rahmadani Diah Ambarwati Dini Dwi Saputri Dwi Wahyuningtyas Elvarreta, Clarissa Diva Falihul Royhan, Muhammad Faradilla Sandi Fatikah, Cindi Favian Almer Kamal Fitroni, Muhammad Alfan Hajar, Tarisah Dewi Handayani, Sri Linda Ida, Mufnil Indhi Regitha Pramesti Jurycha Tandiayuk Juwita Kharisma Putri Kamal, Favian Almer Kinanti, Anggreini Ratna Lailatul Qomariyah, Lailatul Lestari, Amelia Dwi Lidya Veronica Christy Rihidima Mahara, Cendana Izha Maroeto, . Mawakhiro, Siti Mayang Dwi Sayekti Mediana Cesyanti Ajeng Rohali Mufnil Ida Muhammad Qowiyyudin Mustika, Yesi Rahma Nadin, Sarah Putri Naila Amrillah Zakiah Niken Dima Norisnita, Muazila Nugroho, Titan Baihaqi Akbar Nur Alfia Nurindah Dwi Antika Nurul Hidayati Nurul Hidayati Nuryananda, Praja Firdaus Oktavia, Carrisa Putri Permana, Septian Davis Pertiwi, Devi Rosa Kusuma Prastiyas, David Indra Purnomo Edi Sasongko Purwadi MP. Ir Putri Prastikasari Putri, Danisa Putri, Nabhila Maharani Cahaya Qowiyyudin, Muhammad Rahma Nurkhasanah Rahma, Syafira Chamila Ramandani, Tisna Meylia Tivanti Ratna Wahyuni Pratiwi Rayna Shafiyah Salsabila Haris Riska Faulia Rahma Rohali, Mediana Cesyanti Ajeng Salsabilla Prabawati Hariyono Sari, Anisafitri Ratna Selvi Permata Groda Sitanggang, Della Anzelia Siti Mi'Danur Rahmah Sya’diyah, Halimatus Tandiayuk, Jurycha Tita Ayu Rospricilia Travito, Okalifta Rale Ulinnuha, Unsiah Zulfa Unsiah Zulfa Ulinnuha Wahyu Santoso