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All Journal KONSELI: Jurnal Bimbingan dan Konseling (E-Journal) Al-Iqtishad : Jurnal Ilmu Ekonomi Syariah (Journal of Islamic Economics) Jurnal Ilmiah Ekonomi Islam Jurnal Mantik Community Development Journal: Jurnal Pengabdian Masyarakat JOURNAL OF BUSINESS AND ECONOMICS RESEARCH (JBE) Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (JASMIEN) Berajah Journal International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Journal of Economics Research and Policy Studies Jurnal Informatika Ekonomi Bisnis Krigan: Journal of Management and Sharia Business International Journal of Business, Economics & Financial Studies Management and Business Progress Community Service Progress Accounting Progress
Gunawan, Didik
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Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Library & Information Science Public Health Social Sciences Other

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Journal : Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (JASMIEN)

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Dinamika Loyalitas Konsumen Gen Z: Peran Strategis Brand Ambassador Dan Kualitas Produk dalam Ekosistem Pemasaran Kecantikan Wardah Lestari, Putri Ayu; Paramita S, Novia; Gunawan, Didik; Puspaningrum, Cici
Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (Jasmien) Vol. 5 No. 03 (2025): Vol. 5 No. 03 (2025): Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (Jasmien)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jasmien.v5i03.1297

Abstract

The rapid growth of Indonesia's beauty industry has made consumer loyalty a strategic focus for cosmetic brands, particularly among Generation Z. This study analyzes the influence of brand ambassadors and product quality on customer loyalty in the context of Wardah, a leading halal beauty brand. Using a quantitative method, a survey was distributed to 100 respondents who follow Ayana Jihye Moon—Wardah's brand ambassador—on Instagram. Data analysis employed multiple linear regression, t-tests, F-tests, and classical assumption tests (validity, reliability, normality, multicollinearity, and heteroscedasticity). Results indicate that the brand ambassador has a significant positive effect on customer loyalty (t = 2.706, p < 0.05), while product quality does not show a significant effect (t = 1.003, p > 0.05). However, both variables simultaneously influence customer loyalty significantly (F = 43.756, p < 0.05). These findings highlight that the emotional connection built through a well-chosen brand ambassador, especially one aligned with consumer values like Ayana, plays a more decisive role in forming brand loyalty among Gen Z than product quality alone. While product quality remains essential, it is insufficient without effective communication and brand representation. This research contributes to understanding consumer behavior in the digital era and offers insights for marketers to tailor strategies for maintaining brand loyalty in a competitive market.
Pengaruh Guncangan Harga Batubara Dan Fluktuasi Nilai Tukar Terhadap Imbal Hasil Pasar Saham Pada Sektor Energi Rizki, Anita; Andini; Gunawan, Didik; Cahyadi, Lukieto
Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (Jasmien) Vol. 5 No. 03 (2025): Vol. 5 No. 03 (2025): Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (Jasmien)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jasmien.v5i03.1344

Abstract

This study examines the effect of coal price changes and exchange rate dynamics on stock returns in Indonesia's energy sector. Using secondary data covering the time span from January 2022 to December 2024 and applying the Autoregressive Distributed Lag (ARDL) approach, the study finds that coal prices have a noticeable impact on stock returns in the short period, but do not show a meaningful influence in the longer time horizon. In contrast, exchange rate movements are shown to have important effects in both short and long horizons. The results provide a new perspective for investors in strategizing in the energy sector, highlighting the need to consider coal prices for short-term decisions and exchange rates for long-term planning.
Co-Authors Agustin, Zura Andini Anggun, Depina Angin, Fahrizal Perangin Anita Rizki Apriyanti, Rini Arfah, Yenni Astika, Weni Asyari, Asyari Ari Awaluddin Awaluddin Azmi , Nurul Batubara, Rizki Wulanita Bobby Hartanto, Bobby Cahaydi, Willy Cahyadi, Lukieto Cahyadi, Willy Dewi, Ririn Fitria Dikdik Kusdiana Dinovidta, Tio Lenta Ferryanto, Thomas Fitrianingsih Fitrianingsih Haratikka, Haya Hermansyah Hermansyah Hutauruk, Rapat Piter Sony Imelda Mardayanti Jumadiah Wardati Layli, Devi Liunardo, Nycholas Lubis, Nanda Sri Dewi Maharani, Suci Neni Murniati Nurdini, Yuni Nurhafizah, Siti Nurnabilla, Siti Paramita S, Novia Perengki Susanto Pratama, Ivan Febri Puspaningrum, Cici Putri Andriani Putri Ayu Lestari Rahayu Rahayu Sarwoto Sarwoto, Sarwoto Sianipar, Cristin Natalia Sinaga , Eryolen Ratno Suwita, Alya Syahputra, Andry Tri Lestari Useno, Bambang Wani Saragih, Tri