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SUPPLY CHAIN RESILIENCE: CALCULATION OF MAXIMUM TOLERABLE DOWNTIME (MTD) AND OPTIMUM STOCK LEVEL WITH A RISK-BASED APPROACH Pradana, Yoga Wishnu; Mulyono, Nur Budi
Journal of Economic, Bussines and Accounting (COSTING) Vol. 8 No. 4 (2025): 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: 10.31539/8k1gfw10

Abstract

The coal mining sector faces major challenges in maintaining operational continuity due to market fluctuations, logistics disruptions, and external uncertainties. This study evaluates the supply chain resilience of PT XYZ using a risk-based approach. The main objectives are to calculate the Maximum Tolerable Downtime (MTD) and determine the optimum inventory level adjusted to the company's financial risk tolerance limit. Currently, PT XYZ is experiencing an imbalance between production and sales, causing coal stock to approach the maximum capacity limit of 14.7 million tons. The increase in average stock from 2020–2024 has an impact on high storage costs and operational risks. This study integrates operational data, risk assessment models, and quantitative methods to convert financial risk limits into operational limits in tonnage units. The result is a predictive model that functions as an early warning system to help companies maintain operations within safe limits and improve decision making amid uncertainty.
Determinants of My Rentokil Reporting System Adoption and its Impact on Employees’ Job Satisfaction Alam, Lutfhi Chairul; Mulyono, Nur Budi
Journal Research of Social Science, Economics, and Management Vol. 5 No. 7 (2026): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v5i7.1329

Abstract

The adoption of reporting systems in organizations does not always lead to consistent use, especially in systems that are already in the post-adoption stage and integrated into routine work activities. MyRentokil is implemented at PT Rentokil Initial Indonesia to support service reporting and operational control; however, variations in employee usage behavior are still observed. This research aims to analyze the determinants of the adoption of the MyRentokil reporting system and its impact on employee job satisfaction. This quantitative study surveyed internal users (technicians and service supervisors) at PT Rentokil Initial Indonesia’s Tangerang branch and analyzed the data using PLS-SEM based on the UTAUT2 framework. The results of the study showed that business expectations had a significant effect on behavioral intention, while performance expectations did not have a significant effect. Behavioral intention also did not have a significant effect on actual usage behavior, indicating a gap between intention and usage in the context of organizational systems that have been integrated into work activities. Conversely, supportive conditions and habits were found to be the main factors influencing usage behavior. In addition, system usage behavior had a positive and significant effect on employee job satisfaction. In mature systems, sustained use depends more on ease of use, organizational support, and work habits than on perceived performance benefits or usage intention. This study extends the UTAUT2 framework to post-adoption contexts, offering practical insights for strengthening system use through structural integration to enhance job satisfaction.