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Cahyadi, Lukieto
Sekolah Tinggi Ilmu Ekonomi Bina Karya
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Analisis Prediksi Harga Saham PT. BCA Dengan Menggunakan Metode ARIMA Kurnia, Ferry Agam; Hardianti, Mira; Sinurat, Mangasi; Cahyadi, Lukieto
eCo-Fin Vol. 7 No. 2 (2025): eCo-Fin
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32877/ef.v7i2.2373

Abstract

Penelitian ini bertujuan untuk memprediksi harga saham PT. BCA yang mengalami fluktuasi dalam beberapa tahun terakhir. Metode yang digunakan adalah Autoregressive Integrated Moving Average (ARIMA), dengan data sekunder berupa data time series harian penutupan dari tanggal 12 April 2021 hingga 11 April 2025 yang berjumlah 964 data time series. Data tersebut diperoleh melalui pencarian histori harga saham PT. BCA yang tersedia di situs resmi www.investing.com. Pengolahan data dilakukan menggunakan software ekonometrika, yaitu E-views 12. Hasil analisis menunjukkan bahwa model terbaik untuk peramalan adalah ARIMA (1,1,1), dengan nilai MAPE <10%, yang menunjukkan tingkat akurasi yang tinggi. Berdasarkan model tersebut, prediksi harga saham BCA pada tahun 2026 diproyeksikan mengalami tren kenaikan hingga akhir tahun. Penelitian ini memberikan kontribusi dalam mendukung pengambilan keputusan investasi dengan pendekatan peramalan teknikal berbasis data historis. Hasil ini juga memperkuat keandalan model ARIMA dalam konteks peramalan harga saham harian jangka menengah, khususnya bagi saham-saham dengan pola pergerakan harga yang relatif stabil seperti BCA.
Pengaruh Labelisasi Halal, Harga, dan Kualitas Produk Terhadap Keputusan Pembelian Tteoboki: Studi Kasus Pada Konsumen Kims Tapokki Anti, Risti; Siahaan, Rumiris; Cahyadi, Lukieto; Napitu, Resna
Management And Business Progress Vol. 4 No. 1 (2025): Management and Business Progress Edisi Juni 2025
Publisher : Sekolah Tinggi Ilmu Ekonomi Bina Karya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70021/mbp.v4i1.231

Abstract

This study aims to determine the Effect of Halal Labeling, Price and Product Quality on Tteokbokki Purchase Decisions (Case Study on Consumers of Kims Tapokki). This type of research is a quantitative method approach, sampling technique using accidental sampling technique and data collection by distributing questionnaires to 96 respondents Kims Tapokki. While the method of data analysis using multiple linear regression analysis.From the results of this test, it can be concluded that based on the results of the analysis of hypothesis 1, it can be seen that tcount (2.181) > ttable (1.985), as well as the significance value of 0.032<0.05, it can be concluded that the first hypothesis is accepted, meaning Halal Labeling (X1 ) affects the Purchase Decision (Y), hypothesis 2 can be seen that tcount (3.837) > ttable (1.985), and the significance value is 0.000 <0.05, it can be concluded that the second hypothesis is accepted, meaning that the price (X2) affects the Purchase Decision. (Y), hypothesis 3 can be seen that tcount (8.455) > ttable (1.985), and the significance value is 0.000 <0.05, it can be concluded that the third hypothesis is accepted, meaning that Product Quality (X3) has an effect on Purchase Decision (Y), and hypothesis 4 it can be seen that Fcount (82.434) > Ftable (2.70), and a significance value of 0.000 <0.05, it can be concluded that the fourth hypothesis is accepted, meaning Labelis Halal ation (X1), Price (X2), and Product Quality (X3) have a joint (simultaneous) effect on Purchase Decision (Y).
THE TECH STOCKS' PARADOX: UNRAVELING THE UNEXPECTED DECLINE AMID INDONESIA'S DIGITAL ECONOMY BOOM Syahputra, Andry; Gunawan, Didik; Cahyadi, Lukieto
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 7 (2025): JUNE
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v4i7.763

Abstract

This study aims to analyze the influence of digital economy growth, macroeconomic factors, and stock liquidity on the stock prices of Indonesia’s technology sector during the period of January 2021 to December 2024. Employing a quantitative approach, this research utilizes the Structural Equation Modeling-Partial Least Squares (SEM-PLS) method processed through the SmartPLS software. The study relies on secondary monthly data, including digital indicators such as private funding value and internet user growth, macroeconomic indicators such as interest rates and exchange rates, and liquidity indicators such as trading volume and frequency. The results indicate that digital economy growth has a positive and significant effect on technology sector stock prices, while macroeconomic factors show a negative and significant impact. Meanwhile, stock liquidity does not exhibit a significant effect. These findings offer new insights into the dynamics of technology stocks in Indonesia, which do not always align with digital development, and highlight the critical role of macroeconomic conditions in investment decision-making. This research is expected to contribute to the development of digital financial strategies in the national context. Keywords: Digital Economy, Macroeconomics, SEM-PLS, Stock Liquidity, Stock Price
PENGUATAN MANAJEMEN UMKM DI DESA PAYA LOMBANG KEC. TEBING TINGGI KAB. SERDANG BEDAGAI Sari, Dian Purnama; Saragih, Dara Mustika; Novianti, Sri Suci; Sari , Dea Novita; Zahra, Anita; Prayogi, Bagus; Sinurat, Mangasi; Cahyadi, Lukieto; Hartanto, Bobby; Siregar, Aisyah
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 6 (2024): Vol. 5 No. 6 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i6.40418

Abstract

Penguatan manajemen UMKM memerlukan penerapan berbagai strategi yang dirancang untuk meningkatkan efisiensi operasional, daya saing, dan keberlanjutan. Salah satu strategi yang krusial adalah pengembangan sumber daya manusia. Melalui pelatihan dan pendidikan yang berkelanjutan, pemilik UMKM dapat memperoleh keterampilan dan pengetahuan yang diperlukan untuk mengelola UMKM dengan lebih efektif. Pelatihan meliputi manajemen keuangan, pemasaran, manajemen rantai pasokan, serta penggunaan teknologi digital. Peningkatan kapasitas manajerial ini akan membantu UMKM dalam membuat keputusan yang lebih baik dan strategis.
SOSIALISASI PEMBUATAN BANK SAMPAH DAN BAHAYA NARKOBA PADA MASYARAKAT DI KELURAHAN PERSIAKAN KECAMATAN PADANG HULU KOTA TEBING TINGGI Musparina, Musparina; Wijaya, M. Dian; Putri, Abdella; Prawira, Bayu Eka; Andryan, Dwi Aqil; Syahfitri, Ayunda; Siregar, Aisyah; Cahyadi, Lukieto; Rusmewahni, Rusmewahni; Arifin, Indra Welly
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 6 (2024): Vol. 5 No. 6 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i6.40419

Abstract

Narkoba merupakan tantangan serius  dimasyarakat terutama bagi generasi muda di Indonesia. Kurangnya pengetahuan akan obat-obatan berbahaya ini dan dampaknya yang serius baik dari segi kesehatan dan ancaman hukuman yang diterima. Artikel ini membahas mengenai kegiatan yang dialkukan oleh mahasiswa dalam membantu mencegah dan menanggulangi bahaya narkoba melalui sosialisasi dan aksi yang dilakukan bersama Badan Narkotika Nasional (BNN). Dengan mengorganisir sosialisasi dan aksi bersama BNN, mahasiswa dapat meningkatkan kesadaran masyarakat terhadap dampak buruk narkoba, serta memberikan informasi tentang pencegahan dan rehabilitasi. Selain itu mahasiswa juga melakukan tambahan kegiatan yakni sosialisasi pengelolaan Bank Sampah dalam membantu menyelamatkan kerusakan lingkungan. Harapan dari kegiatan PKM ini adalah menumbuhkan Kesadaran sosial bagi masyarakat mengenai bahaya narkoba dan mampu mengelola Bank Sampah menjadi kegiatan yang dapat menambah pendapatan terutama bagi kelompok ibu rumah Tangga di  khususnya di kelurahan Persiakan Kecamatan Padang Hulu, Kota Tebing Tinggi.
Relational Marketing Management and Influence on Customer Loyalty: Empirical Evidence from Islamic Banks in North Sumatra Fitrianingsih; Cahyadi, Lukieto; Candrasa, Limega
Jurnal Ilmiah Manajemen Kesatuan Vol. 14 No. 1 (2026): JIMKES Edisi January 2026
Publisher : LPPM Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jimkes.v14i1.4673

Abstract

In the era of globalization and increasing competition, the banking industry faces major challenges in maintaining customer loyalty. Islamic banks, as alternative financial institutions, have distinctive characteristics that differentiate them from conventional banks. In the context of increasingly intense competition in the banking industry, particularly among Islamic banks, it is essential for financial institutions to build strong and sustainable relationships with their customers. This study aims to analyze the influence of relationship marketing management on increasing customer loyalty in Islamic banks operating. The research employs a quantitative approach using a survey involving 200 Islamic bank customers. The collected data were analyzed using descriptive statistical techniques and linear regression to measure the influence of relationship marketing management variables such as communication, trust, and customer satisfaction on customer loyalty. The results indicate a significant positive relationship between relationship marketing management and customer loyalty. Effective communication and strengthened customer trust are key factors in building loyalty. These findings provide important implications for Islamic bank management, highlighting the need to develop improved marketing strategies that focus on long-term customer relationships to enhance customer retention and satisfaction.
Co-Authors Ananda, Putri Andini Andryan, Dwi Aqil Anita Rizki Anti, Risti Arifin, Indra Welly Bobby Hartanto Cahyadi, Willy Candrasa, Limega Dewi, Ririn Fitria Dian Purnamasari Fitrianingsih Fitrianingsih Gunawan, Didik Hardianti, Mira Kurnia, Ferry Agam Musparina, Musparina Novianti, Sri Suci Nurdini, Yuni Prawira, Bayu Eka Prayogi, Bagus Putri, Abdella Resna Napitu Rusmewahni, Rusmewahni Saragih, Dara Mustika Sari , Dea Novita Siahaan, Rumiris Sinurat, Mangasi Siregar, Aisyah Situmorang, Anderson Hasiholan Syahfitri, Ayunda Syahputra, Andry Wijaya, M. Dian Zahra, Anita