Article Per Year (5 Year)
p-Index From 2021 - 2026
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This Author published in this journals
All Journal Journal of Economics Research and Policy Studies Indonesian Journal of Economics, Business, Accounting, and Management
Dwi Martutiningrum
Faculty Of Business And Economics, Universitas Islam Indonesia
Economics, Econometrics & Finance Social Sciences

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How the stock market reacts on presidential inauguration and cabinet announcement? A case study of Indonesian mining and energy industries Achmad Rizal; Imas Hasanah; U'um Munawaroh; Dwi Martutiningrum
Journal of Economics Research and Policy Studies Vol. 5 No. 3 (2025): Journal of Economics Research and Policy Studies
Publisher : Nur Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53088/jerps.v5i3.2292

Abstract

This study investigates the stock market reaction of Indonesia’s mining and energy sectors, represented by LQ45 index constituents, toward the 2024 presidential inauguration and cabinet announcement. Using an event study methodology with an event window of t-7 to t+7, the research measures market responses through abnormal returns based on the market-adjusted model. Results show that the pre-inauguration period is characterized by predominantly negative Average Abnormal Returns (AAR) and Cumulative Abnormal Returns (CAR), indicating heightened uncertainty surrounding the incoming administration. On the inauguration day, both indicators turn positive, reflecting temporary optimism regarding political stability and policy continuity. However, the post-event window displays volatility, with sharp positive abnormal returns on certain days (e.g., t+3) but declines on others (e.g., t+2). Most t-statistics are statistically insignificant, suggesting that the inauguration did not generate strong or persistent market reactions.
Digital Persona vs Real Person: A Study on The Attractiveness of Human and Virtual Influencers in Social Media Advertising Reynaldi Dwi Junianta; Masyithoh Annisaush Sholihah; Binarin Tirto Andika; Dwi Martutiningrum; Muhammad Saddam Sofyandi
Indonesian Journal of Economics, Business, Accounting, and Management (IJEBAM) Vol 2 No 6 (2024): August 2024
Publisher : PT SOLUSI EDUKASI BERDIKARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63901/ijebam.v2i6.99

Abstract

This study aims to compare the differences in the attractiveness of product advertising content with human influencers and VTubers using the audience experience approach. The audience's experience is seen through an assessment of the pragmatic and hedonic qualities of the two advertisements viewed. Attrakdiff is used as a method to measure the assessment of both product advertisements. There are 20 respondents who are asked to view both advertisements and fill out two different questionnaires representing advertisements with human influencers and VTubers. The results show that the attractiveness of advertisements with human influencers and VTubers has almost the same attractiveness. There are differences in pragmatic and hedonic-identity quality (human influencers are superior) and hedonic-stimulation (VTubers are superior), which differentiate between the two. Although there are differences in the assessment of the audience's experience in watching content from human influencers and VTubers, both still have almost the same appeal.
Co-Authors Achmad Rizal Binarin Tirto Andika Imas Hasanah Masyithoh Annisaush Sholihah Muhammad Saddam Sofyandi Reynaldi Dwi, Junianta U'um Munawaroh