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Popy Ridhona Tambunan
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Economics, Econometrics & Finance

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Analysis of Online Transportation Service Applications Selection Using Analytical Hierarchy Process (AHP) Method Abizar Al Ghiffari, Hadraji Mufti; Refika Cyntia Sari; Popy Ridhona Tambunan; Pundari Zuhayka; Muhammad Syahru Ramadhana
Bulletin of Islamic Economics Vol. 4 No. 1 (2025)
Publisher : Department of Islamic Economics, Faculty of Islamic Economics and Business, Universitas Islam Negeri Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/bie.2025.041-05

Abstract

This study aims to analyze user preferences in choosing online transportation service applications using the Analytical Hierarchy Process (AHP) method. The study was conducted by distributing questionnaires to 51 respondents from various regions in Indonesia, who are active users of Gojek, Grab, and Maxim applications. Four main criteria were used as the basis for evaluation, namely service speed, price, promotion, and driver availability. The results of data processing show that service speed is the most dominant factor in decision making with a weight of 51%, followed by driver availability (23%), promotion (15%), and price (11%). Of the three applications studied, Gojek obtained the highest priority value (0.47), making it the top choice of respondents. This research shows that operational aspects such as speed and service availability are more decisive than price considerations alone, and confirms the relevance of the AHP method in assisting complex, user preference-based decision making.
The Relationship between Exchange Rate, Money Supply, and Inflation in Indonesia: An ARDL Approach: English Sari, Refika Cyntia; Popy Ridhona Tambunan; Muhammad Syahru Ramadhana
Bulletin of Islamic Economics Vol. 4 No. 2 (2025): Bulletin of Islamic Economics
Publisher : Department of Islamic Economics, Faculty of Islamic Economics and Business, Universitas Islam Negeri Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/bie.2025.042-01

Abstract

This study examines the short- and long-term relationships between inflation, exchange rate, and money supply (M2) in Indonesia using the Autoregressive Distributed Lag (ARDL) approach over the period 2013–2024. Monthly time-series data obtained from official sources are analyzed to capture the dynamic interactions among variables. The bounds testing procedure confirms the existence of a long-run cointegration relationship, with the ARDL(5,1,2) model identified as the optimal specification. Empirical results indicate that, in the short run, inflation is significantly influenced only by its own past values, while the exchange rate and money supply are statistically insignificant in both the short and long term. These findings suggest that inflation dynamics in Indonesia are primarily driven by internal adjustment mechanisms rather than direct monetary or exchange rate shocks. The study contributes to monetary policy analysis by highlighting the importance of inflation expectations and domestic stability.
Co-Authors Abizar Al Ghiffari, Hadraji Mufti Muhammad Syahru Ramadhana Pundari Zuhayka Refika Cyntia Sari Sari, Refika Cyntia