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All Journal Ascendia: Journal of Economic and Business Advancement Mercatura Lumina: Journal of Management, Entrepreneurship, and Tourism
Abdul Karim
Universitas Diponegoro
Economics, Econometrics & Finance

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Efek Perekonomian Negara (Inflasi, Upah Minimum, Konsumsi, Kurs Tukar, Investasi, dan Pengeluaran Pemerintah) Terhadap Pertumbuhan Manufaktur di Indonesia: Pendekatan Error Correction Model (ECM) Galih Priyo Anggoro; Indah Susilowati; Abdul Rouf; Purbayu Budi Santosa; Darwanto Darwanto; Deden Dinar Iskandar; Abdul Karim; Wahyu Widodo
Journal of Economic and Business Advancement Vol. 2 No. 1 (2026): : September: Ascendia: Journal of Economic and Business Advancement
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/47fjcn70

Abstract

This study aims to analyze the effects of inflation, minimum wage, household consumption, exchange rate, investment, and government expenditure on the growth of Indonesia’s manufacturing industry during the 1990–2024 period. The study employs a quantitative approach using annual time-series data consisting of 35 observations and is analyzed using the two-step Engle–Granger Error Correction Model (ECM). The Augmented Dickey–Fuller and Phillips–Perron tests indicate that all variables are integrated of order I(1), while the cointegration test confirms the existence of a long-run relationship. The estimation results show that investment has a significant positive effect on manufacturing growth, whereas government expenditure has a significant negative effect, indicating a crowding-out effect. The Error Correction Term coefficient of -1.046 (p < 0.01) confirms the adjustment mechanism toward long-run equilibrium. In the short run, changes in investment and government expenditure are the main determinants of manufacturing growth. These findings highlight the importance of strengthening the investment climate and allocating government expenditure more productively to support the growth of the manufacturing sector.
The Effect of Digital Marketing and Service Quality on Customer Loyalty Among E-Commerce Users in Indonesia Diyan Pratiwi; Ida Ariyani; Ida Hayu Dwimawanti; Abdul Rouf; Purbayu Budi Santosa; Deden Dinar Iskandar; Wahyu Widodo; Abdul Karim
Journal of Management, Entrepreneurship, and Tourism Vol. 1 No. 3 (2026): : August: Mercatura Lumina: Journal of Management, Entrepreneurship, and Touris
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/rqy88f18

Abstract

This study examines the effects of digital marketing and service quality on customer loyalty among e-commerce users in Indonesia. Using a quantitative explanatory cross-sectional design, primary data were collected from 150 active e-commerce users in Jakarta, Surabaya, and Semarang through a structured online questionnaire employing a five-point Likert scale. The data were analyzed using multiple linear regression with SPSS version 26, preceded by validity, reliability, normality, multicollinearity, and heteroscedasticity testing. The results indicate that digital marketing has a positive and significant effect on customer loyalty (β = 0.412; t = 5.87; p < 0.05), while service quality also has a positive and significant effect on customer loyalty (β = 0.386; t = 5.21; p < 0.05). The simultaneous regression model is statistically significant and explains 50.7% of the variance in customer loyalty (R² = 0.507). Digital marketing demonstrates a slightly stronger contribution than service quality, although both factors have relatively comparable effects on loyalty. The findings indicate that promotional engagement and consistent service delivery should be developed concurrently to strengthen repeat purchases, referrals, and resistance to competing platforms. The study contributes empirical evidence to e-commerce marketing management and offers practical guidance for integrating digital marketing strategies with service quality improvements to foster sustainable customer loyalty.
Co-Authors Abdul Rouf Darwanto Darwanto Deden Dinar Iskandar Diyan Pratiwi Galih Priyo Anggoro Ida Ariyani Ida Hayu Dwimawanti Indah Susilowati Purbayu Budi Santosa Wahyu Widodo