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Tampubolon, Lasma Ria
Universitas Prima Indonesia
Aerospace Engineering Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Languange, Linguistic, Communication & Media Nursing Social Sciences Other

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PENGARUH INFLASI, SUKU BUNGA, PROFITABILITAS DAN STRUKTUR MODAL TERHADAP HARGA SAHAM PERUSAHAN SEKTOR PROPERTY DAN REAL ESTATE YANG TERCATAT DI BURSA EFEK INDONESIA Sorta Angelia Br Aritonang; Yohana Priskawati Priskawati; Lasma Ria Tampubolo; Eka Mayastika Sinaga
Journal of Economic, Bussines and Accounting (COSTING) Vol 7 No 5 (2024): Journal of Economic, Bussines and Accounting (COSTING)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/costing.v7i5.12336

Abstract

The purpose of this study was to obtain empirical evidence about the effect of inflation and interest rates on stock prices partially or simultaneously and to determine the most dominant variable that affects the stock price of property and real estate companies on the Indonesia Stock Exchange in 2018-2022. This type of research is quantitative research and the type of data used is quantitative secondary data derived from the results of the Indonesia Stock Exchange publication, about issuer data, reports published by Bank Indonesia, reference books, the internet, and other scientific scientific literature related to the topic of research discussion. Secondary data in this study includes monthly panel data for the period 2018-2022 which includes Debt To Equity Ratio (DER), Return On Equity (ROE), and Stock Price data taken from the Indonesia Stock Exchange website. While Inflation data, Interest Rates (BI Rate) are taken through the Bank Indonesia website. The data collection method is carried out by collecting supporting data from literature, journals, and reference books to get the case of the problem under study and collecting relevant secondary data from reports published by Bank Indonesia and the Indonesia Stock Exchange. The results of this study indicate that simultaneously the inflation rate and interest rate variables have a significant effect on the stock price of property and real estate companies on the Indonesia Stock Exchange and partially show that the inflation rate has a positive and significant effect on stock prices, while interest rates have no significant effect on stock prices.
PENGARUH RETURN ON ASSET (ROA), RETURN ON EQUITY (ROE), LOAN TO DEPOSIT RATIO (LDR), DAN NON PERFORMING LOAN (NPL) TERHADAP HARGA SAHAM PADA PERUSAHAAN PERBANKAN YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE 2019 – 2023 Ayu Anggraini Siregar; Fadya Octavia Limbong; Ezzah Nahrisah; Lasmaria Tampubolon
Journal of Economic, Bussines and Accounting (COSTING) Vol 7 No 5 (2024): Journal of Economic, Bussines and Accounting (COSTING)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/costing.v7i5.12337

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh Return on Equity (ROE), Loan to Deposit Ratio (LDR), Non-Performing Loan (NPL), dan Return on Asset (ROA) terhadap harga saham. Pendekatan penelitian ini dilakukan dengan kuantitatif dan pemilihan sampel dilakukan dengan menggunakan purposive sampling. Metode penelitian ini dilakukan menggunakan regresi linear berganda dengan yang diteliti maka secara parsial.
PENGARUH WORD OF MOUTH, KUALITAS PELAYANAN DAN HARGA TERHADAP KEPUTUSAN PEMBELIAN DI ZARA Harwin Kumar; Lasma Ria Tampubolon; Colin Edward; Eka Mayastika Sinaga
Journal of Economic, Bussines and Accounting (COSTING) Vol. 9 No. 1 (2026): COSTING : Journal of Economic, Bussines and Accounting
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/11wbzc05

Abstract

Dalam persaingan ritel fashion yang semakin ketat, ZARA menghadapi tantangan penurunan keputusan pembelian konsumen yang terlihat dari fluktuasi dan penurunan penjualan pada beberapa periode 2024–2025. Perubahan perilaku konsumen, meningkatnya ekspektasi terhadap kualitas pelayanan, pengaruh word of mouth, serta persepsi harga menjadi faktor penting yang memengaruhi keputusan pembelian. Sejumlah keluhan konsumen terkait ketidakkonsistenan pelayanan, penyebaran word of mouth negatif, dan anggapan bahwa harga belum sepenuhnya sebanding dengan kualitas produk turut memperkuat fenomena tersebut. Oleh karena itu, penelitian ini penting dilakukan untuk menganalisis pengaruh kualitas pelayanan, word of mouth, dan harga terhadap keputusan pembelian di ZARA sebagai dasar perumusan strategi pemasaran yang lebih efektif. Penelitian ini dilakukan di ZARA Kota Medan pada periode April hingga Agustus 2025 dengan menggunakan pendekatan kuantitatif bersifat kausal untuk menganalisis hubungan sebab-akibat antara variabel bebas dan variabel terikat. Populasi penelitian adalah seluruh konsumen yang pernah berkunjung ke ZARA selama tahun 2024 sebanyak 10.336 orang. Teknik pengambilan sampel yang digunakan adalah accidental sampling, sedangkan penentuan jumlah sampel menggunakan rumus Slovin dengan tingkat kesalahan 10 persen, sehingga diperoleh jumlah sampel sebanyak 99 responden yang dibulatkan menjadi 100 responden. Berdasarkan hasil uji statistik, dapat disimpulkan bahwa kualitas pelayanan, word of mouth, dan harga masing-masing berpengaruh positif dan signifikan terhadap keputusan pembelian. Kualitas pelayanan terbukti mampu meningkatkan keputusan pembelian melalui pelayanan yang baik dan memuaskan, sementara word of mouth memberikan dampak positif dalam mendorong minat dan keputusan konsumen untuk membeli. Harga menjadi variabel yang paling dominan dalam memengaruhi keputusan pembelian dibandingkan variabel lainnya. Secara simultan, kualitas pelayanan, word of mouth, dan harga berpengaruh positif dan signifikan terhadap keputusan pembelian.
The Impact of Service Quality on Customer Satisfaction and Customer Loyalty in Mixed Hospitality Services: Evidence from North Sumatra, Indonesia Eka Mayastika sinaga; Lasma Ria Tampubolon; Riko Fridolend Sianturi
Fundamental and Applied Management Journal Vol. 4 No. 1 (2026): March
Publisher : Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/famj.v4i1.873

Abstract

This study examines the effect of service quality on customer satisfaction and customer loyalty in mixed hospitality services in North Sumatra, Indonesia. The study focuses on customer evaluations of hospitality providers, including accommodation, restaurant and cafe, travel, and tourism-related services. A quantitative design was used, and primary data were collected from 100 respondents who had used hospitality services in North Sumatra within the previous six months. The instrument was measured using a five-point Likert scale and adapted from the SERVQUAL dimensions, customer satisfaction indicators, and customer loyalty indicators. Data were analyzed using descriptive statistics, validity and reliability tests, classical assumption tests, correlation analysis, regression analysis, and mediation analysis with Hayes' PROCESS macro Model 4 using 5,000 bootstrap resamples. The results show that service quality has a positive and significant effect on customer satisfaction (B = 0.721, p < 0.001). Service quality also has a positive and significant direct effect on customer loyalty (B = 0.305, p = 0.001), while customer satisfaction has a positive and significant effect on customer loyalty (B = 0.581, p < 0.001). Mediation testing confirms that customer satisfaction partially mediates the relationship between service quality and customer loyalty, with an indirect effect of 0.419 and a 95% bootstrap confidence interval that does not include zero. These findings demonstrate that hospitality providers in North Sumatra can strengthen customer loyalty by improving reliable, responsive, empathetic, assured, and tangible service experiences.
Co-Authors Andre Ramadhan Ayu Anggraini Siregar chandra wijaya Colin Edward Denisse Yinarta Eka Mayastika Sinaga Esther Praja Anggriany Panggabean Fadya Octavia Limbong Ferdinand Napitupulu Ginting, Nurmaidah Harwin Kumar Maisara Batubara Marcelino Leo Merry Tenia Mohd. Idris Dalimunthe Nahrisah, Ezzah Nindya Putri Nurmaidah Ginting Riko Fridolend Sianturi Riko Fridolend Sianturi Saskia Septina Fenny Kok Simanjuntak, Demak Claudia Yosephine Sinaga, Eka Mayastika Siregar, Ina Namora Putri Sorta Angelia Br Aritonang Steven Richard William William Winda Sri Astuti Doloksaribu Yohana Priskawati Priskawati