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All Journal Journal The Winners DIJB (Diponegoro International Journal of Business) Journal of Environmental Science and Sustainable Development Emerging Markets : Business and Management Studies Journal Jurnal Ilmiah Akuntansi Kesatuan Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences AICS Prosiding Konferensi Nasional PKM-CSR Journal Of World Science International Journal of Islamic Business and Management Review Indonesian Capital Market Review
Bustaman, Yosman
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Religion Arts Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Nursing Public Health Social Sciences

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Enhancement of Supply Chain Control Tower to Reduce Inventory Parts of Heavy Equipment at PT XYZ Dwiyana, Meidi; Dyah Kusumastuti, Ratih; Bustaman, Yosman
Journal of World Science Vol. 1 No. 12 (2022): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v1i12.115

Abstract

Introduction: As a leading heavy equipment distributor in Indonesia, PT XYZ is very concerned about after-sales service as an advantage compared to competitors. Keeping the service level based on target was accompanied by a decrease in working capital as one of the goals of PT. XYZ was establishing a tower in its supply chain concept. This research was conducted at PT. XYZ owns the largest market share of heavy equipment in Indonesia. The purpose of this study was to analyze the increase in the supply chain control tower in reducing the inventory of heavy equipment spare parts at PT. XYZ. Method: This research uses mixed methods, a stage of research combining two types of research methodologies, namely qualitative and quantitative.  Result: The analysis results at SCOR level 1 show that all strategic metrics are below the set targets. So that at SCOR level 2, an in-depth analysis is carried out with Geographic maps and Thread diagrams that show potential problems in Enable Process (sE2), Plan Source (sP2) and Delivery (sD1) activities. Finally, the results of SCOR level 3 analysis using a fishbone diagram reveal that the root cause of the problem is a leak in internal company supply chain management. We recommend the enhancement of the supply chain control tower at PT XYZ. Conclusion: This Research primarily aims to evaluate the element supply chain control tower at PT XYZ as a stocked business product with SCOR Model 12.0. The result shows that the performance of the Supply Chain Control Tower in Tower Tanjung Area (TAD) does not achieve the target.
Financial Innovation and Restriction Hypothesis in the Banking Industry: Evidence from ASEAN- 5 Bustaman, Yosman; Viverita, Viverita; Lingga, Margaretha TP; Siahaan, Antonius P.
The Indonesian Capital Market Review Vol. 15, No. 1
Publisher : UI Scholars Hub

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Abstract

This study investigates the financial innovation impact on bank market power in ASEAN banking from 2008 to 2018. It uses income diversification as a representative of financial innovation. The im- pact of countries’ development of financial innovation on market power is measured by the number of ATM, internet, and cellular phone users. The data panel regression model reveals that diversified banks may enjoy higher market power. This result rejects the banking restriction activity hypothesis, which states that a bank that diversifies its income stream results in increased competition. A higher number of available ATMs and more internet users lowers the percentage disparity of price and marginal cost and consequently increases the market competitiveness. Nevertheless, an increasing number of cellular users in the country increases market power. Conjecturally, more people use the online bank platform on their cellular phones, which creates a greater flow of fees to the bank.
Effect of Digital Marketing Implementation Towards Muslim Fashion Brand Awareness And Brand Image Putra, Arvin Enditya; Bustaman, Yosman; Zainal, Munawaroh
International Journal of Islamic Business and Management Review Vol. 5 No. 2 (2025)
Publisher : Asosiasi Dosen Peneliti Ilmu Ekonomi dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1055.722 KB) | DOI: 10.54099/ijibmr.v5i2.43

Abstract

TDigital marketing has a positive impact on brand awareness and brand image. This can have a good effect on the economy as it can increase brand awareness and brand image of Muslim fashion brands. This good effect on the economy will translate into improved company performance in covid'19. This study aims to determine the influence of the company's digital marketing on brand awareness and brand image on covid'19 in Muslim fashion brands. This study uses multiple regression on panel data from a sample of 100 respondents based in Indonesia. The variable of this research is digital marketing in Muslim fashion brands, and other variables are brand awareness and brand image to see what effect digital marketing has on these variables in covid'19. The results of the study resulted in t value > t table and sig < 0.05 from each hypothesis that everything was declared accepted because t value > t table and sig < 0.05. This study shows that there is a significant influence on digital marketing on Muslim fashion brands on brand awareness and brand image in the covid'19 pandemic
EVALUATING IMPACT OF SUSTAINABILITY PRACTICES AND OPERATIONAL EFFICIENCY ON FIRM VALUE IN INDONESIA’S MINING SECTOR Windyasari, Erika; Bustaman, Yosman
Journal of Environmental Science and Sustainable Development Vol. 9, No. 1
Publisher : UI Scholars Hub

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Sustainability practices are increasingly prominent in investor assessments of firm value Nevertheless, empirical evidence regarding which specific environmental practices are incorporated into capital market valuations remains inconclusive, particularly within mining sectors in emerging markets. This study investigates the correlation between sustainability practices energy efficiency, water management, waste management, renewable energy adoption and environmental quality (PROPER rating) together with operational efficiency and firm value in Indonesian listed mining firms. The analysis uses panel data for 23 firms over 2017–2023. Firm value is measured by Tobin’s Q, while operational efficiency is measured using Data Envelopment Analysis (DEA). The correlation is estimated using panel regression models. The results show that renewable energy adoption is the only sustainability practice which positively and significantly correlated with firm value (β=1.2026, p=0.0227). Firm size is also positively correlated with Tobin’s Q (β=0.4195, p<0.001). However, energy efficiency, water management, waste management, environmental quality (PROPER rating) and DEA based operational efficiency are not significantly correlated with firm value in the observed period. These findings indicate that capital markets place higher weight on strategic sustainability commitments, particularly energy transition than on incremental operational improvements. By disaggregating sustainability dimensions and incorporating efficiency measures, this study contributes to the literature on sustainability firm value correlates in resource-based industries within emerging markets. The results imply that while renewable energy investments may be more reflected in market valuation, other environmental and efficiency related practices may require longer time horizons or stronger disclosure mechanisms to be recognized by investors. Enhancing the credibility of sustainability reporting may therefore improve the alignment between firm performance and market perception.
Co-Authors Budianto, Diga Cendekia D Darmawan, D Dwiyana, Meidi Dyah Kusumastuti, Ratih Gunawan, Victor Krisnawati, Nila La Are, Robert Lingga, Margaretha TP Namira, Febby Pramono, Aria Bimo Setyo Putra, Arvin Enditya Rafif, Helmi Ratih Dyah Kusumastuti Rifelly Dewi Astuti Roossiana, Artalia Indah Siahaan, Antonius P. Viverita Viverita Windyasari, Erika Winoto, Agustinus Zainal, Munawaroh