Abstract:This study was motivated by fluctuations in the stock prices of mining sector companies listed in the IDX30 index during 2021–2024, Indonesia’s mineral downstreaming policy, and inconsistencies in previous research findings.…
indings. This study aimed to analyze the effects of interest rates and financial performance, as measured by the debt-to-equity ratio (DER) and earnings per share (EPS), on the stock prices of IDX30 mining companies and to examine the moderating role of inflation. The population comprised all mining sector companies listed in the IDX30 index during the year 2021–2024, while the sample was selected using purposive sampling. This study employed a quantitative explanatory approach and panel data regression with Moderated Regression Analysis. The results showed that interest rates had a negative and significant effect on stock prices, whereas EPS had a positive and significant effect. DER did not significantly affect stock prices. Furthermore, inflation did not moderate the effects of interest rates, DER, or EPS on stock prices. These findings imply that mining companies should maintain sustainable profitability and consider interest rate dynamics in financial decision-making. Investors should also consider macroeconomic conditions and company fundamentals when formulating investment strategies.
Abstract:This study aims to analyze stock market reactions to Cum-Ex Dividend announcements for companies listed on the Indonesia Stock Exchange (IDX) in 2024. Market reactions were measured through abnormal returns and stock trading…
ding volume before and after Cum-Ex Dividend announcements. This study was motivated by differences in investor behavior in responding to dividend distribution information, which is regarded as a positive signal for the market. The research employed a comparative quantitative method with an event study approach. The sampling technique used was purposive sampling. Secondary data were obtained from the Indonesia Stock Exchange, comprising a sample of 88 issuers that distributed cash dividends. Research variables consisted of stock prices and stock trading volume. Data analysis was performed using dummy regression and the Wilcoxon Signed Rank Test with EViews 12 software. The results showed that the majority of issuers (81.82%) experienced significant market reactions to the Cum-Ex Dividend announcement. A total of 56.82% of issuers showed significant negative reactions consistent with the dividend drop theory, while 25% showed significant positive reactions, indicating that investors viewed dividends as a positive signal for company prospects. Meanwhile, 18.18% of issuers showed no significant reaction to dividend announcements. This study demonstrates that Cum-Ex Dividend announcements affect abnormal returns and stock trading volume, thus providing a basis for investor consideration in making investment decisions in the capital market.
Abstract:This study aims to analyze and formulate appropriate marketing strategies for PT Serena Indopangan using a SWOT (Strengths, Weakness, Opportunities, and Threats) analysis approach. The research employs a descriptive qualitative…
itative method, with data collected through observations, interviews, and documentation. The results indicate that the company’s strengths lie in its product quality and extensive distribution network, while its weaknesses include limited digital marketing activities and lack of product innovation. On the external side, growing market demand and changes in consumer lifestyles present significant opportunities, whereas intense competition and fluctuating raw material prices pose major threats. Based on the SWOT analysis, the most suitable strategy for PT Serena Indopangan is the SO (Strengths-Opportunities) strategy, which focus on leveraging internal strengths to capitalize on external opportunities. The study recommends enhancing digital marketing efforts and strengthening brand positioning to improve the company’s competitiveness.
Abstract:Customer loyalty is a crucial factor in maintaining the sustainability of any service business, including the laundry business. Al-Matuq Islamic Boarding School Laundry experienced a decline in turnover and frequency of…
repeated service usage during the 2023–2025 period, indicating a decline in customer loyalty. This study aims to analyze the effect of service quality and price on customer loyalty, with customer satisfaction as a mediating variable. The study used a quantitative approach with a survey method of 133 Al-Matuq Islamic Boarding School Laundry customers selected using a purposive sampling technique. Data analysis was conducted using Structural Equation Modeling (SEM) assisted by AMOS 26. The results showed that service quality has a positive and significant effect on customer satisfaction (β = 0.647; p < 0.001), price has a positive and significant effect on customer satisfaction (β = 0.313; p = 0.002), price has a positive and significant effect on customer loyalty (β = 0.443; p < 0.001), and customer satisfaction has a positive and significant effect on customer loyalty (β = 0.197; p = 0.035). In contrast, service quality does not have a significant effect on customer loyalty (β = 0.077; p = 0.544). These findings indicate that customer satisfaction plays an important role in increasing customer loyalty, while service quality contributes more through increasing customer satisfaction than directly to loyalty. The implications of this study emphasize the importance of consistently improving service quality and setting prices that are in accordance with the benefits received by customers to increase customer satisfaction and loyalty in a sustainable manner
Abstract:Household food security remains a critical challenge for many millennial families, particularly in urban areas where rising food prices, unstable household income, and changing consumption patterns increase financial vulnerability.…
nerability. While previous studies have primarily emphasized economic factors, limited attention has been given to the combined roles of financial literacy and self-control in strengthening household food security. This study aims to examine the effects of financial literacy and self-control on household food security among millennial families in Mattoangin Village, Makassar City. A quantitative research design was employed using a survey of 180 millennial households selected through purposive sampling. Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results reveal that financial literacy has a positive and significant effect on household food security by improving financial planning and resource allocation. Self-control also exerts a significant positive influence by promoting disciplined spending behavior and reducing impulsive consumption. Furthermore, financial literacy and self-control jointly explain a substantial proportion of household food security. These findings highlight that both financial knowledge and behavioral discipline are essential for enhancing household resilience. The study recommends strengthening community-based financial education and behavioral intervention programs to promote sustainable household food security among urban millennial families.
Abstract:This study examines the Indonesian capital market reaction to the announcement of the appointment of Purbaya Yudhi Sadewa as Minister of Finance on September 8, 2025. Using an event study approach, the analysis focuses on…
n companies included in the LQ45 index and observes market reaction within an eleven-day event window from five trading days before to five trading days after the announcement. Market reaction is measured using abnormal return, trading volume activity, and stock volatility. The data consist of daily stock prices, trading volume, outstanding shares, and market index data obtained from capital market data sources. Because the normality test indicates that the data are not normally distributed, the hypotheses are tested using the Wilcoxon Signed Rank Test. The findings show significant differences in abnormal return, trading volume activity, and stock volatility before and after the announcement. These results indicate that the appointment of the Minister of Finance contains information value for investors and is associated with changes in price reaction, trading intensity, and perceived market risk among LQ45 stocks. The study contributes to event study literature by documenting market responses to a strategic fiscal leadership event in an emerging capital market
Abstract:Culinary MSMEs with perishable products face challenges in managing production costs due to the presence of unsold products, which are often not included in determining the Cost of Goods Sold (COGS). This study aims to analyze…
nalyze the application of the full costing method by integrating Expected Spoilage Cost into the COGS calculation at Siomay Kang Dani MSME and evaluate its impact on business profitability. The study used a descriptive quantitative approach with a single case study method. Data were obtained through interviews, direct observation, and documentation related to production costs and the number of unsold products. The results show that the conventional COGS of Rp7,665 per portion increased to Rp8,975 per portion after incorporating the Expected Spoilage Cost of Rp591,240 per month. The integration of spoilage costs results in a more realistic cost calculation because it considers losses due to leftover products. A sensitivity analysis also shows that increasing spoilage levels leads to an increase in COGS and a decrease in profit margins. This study suggests that the application of a modified COGS can help MSMEs set selling prices and manage profitability more accurately
Abstract:This study examines the effects of the Dow Jones Industrial Average (DJIA), world gold prices, world oil prices, and the rupiah exchange rate on the Composite Stock Price Index (CSPI) in Indonesia. The study uses monthly…
secondary data from January 2015 to December 2025, comprising 132 observations. CSPI data were obtained from the Indonesia Stock Exchange, DJIA, gold price, and oil price data were obtained from Investing.com, while exchange rate data were sourced from Bank Indonesia. The analysis employed the two-step Engle-Granger Error Correction Model (EG-ECM) to identify long-run relationships and short-run adjustment dynamics. The long-run results show that gold prices, world oil prices, and the DJIA have positive and significant effects on the CSPI, whereas the rupiah exchange rate has a negative but insignificant effect. In the short run, the exchange rate has a negative and significant effect on the CSPI, while gold prices, oil prices, and the DJIA have positive and significant effects. The Error Correction Term coefficient of -0.1325 is negative and significant, indicating that approximately 13.25% of short-run disequilibrium is corrected each month toward long-run equilibrium. These findings imply that investors and policymakers should closely monitor global market conditions, commodity price movements, and exchange rate volatility to support investment decisions and maintain Indonesian capital market stability
Abstract:This study examines the influence of price perception and online promotion on brand awareness and its implication for purchase decision for KaiaMuslimWear kurta products. The issue addressed in this study is the need for…
KaiaMuslimWear to strengthen its competitive position in the Muslim fashion market, particularly in the men’s kurta category, where consumers are exposed to various product alternatives, competitive prices, and intensive digital promotion. This study used a quantitative approach with a descriptive and verificative design. Data were collected through an online questionnaire distributed to 200 KaiaMuslimWear consumers and analyzed using SPSS 27 and LISREL 8.80 with Structural Equation Modeling. The results show that price perception and online promotion have positive and significant effects on brand awareness and purchase decision. Brand awareness also has a positive and significant effect on purchase decision. Furthermore, brand awareness significantly mediates the effect of price perception and online promotion on purchase decision. These findings indicate that purchase decision is shaped through an integrated process involving perceived price fairness, online promotional effectiveness, and consumer awareness of the brand.
Abstract:This study aims to examine the role of competition law in regulating corporate conduct, protecting consumers, and enhancing economic efficiency in contemporary market economies. Amid increasing market concentration, digital…
tal platform dominance, and the emergence of data-driven business models, competition law has become an essential regulatory instrument for ensuring fair competition, safeguarding consumer interests, and promoting sustainable economic development. This study employs a Systematic Literature Review (SLR) based on the PRISMA 2020 framework. Relevant literature was systematically collected from six major academic databases, namely Scopus, Web of Science, ScienceDirect, SpringerLink, Emerald Insight, and Taylor & Francis Online. The review process included identification, screening, eligibility assessment, and inclusion stages. A total of 78 peer-reviewed articles published between 2015 and 2025 were selected and analyzed using thematic synthesis techniques. The findings reveal that competition law performs four interconnected functions. First, it serves as a regulatory mechanism that shapes corporate behavior and prevents anticompetitive practices, including monopolization, cartel agreements, price-fixing, and abuse of dominant positions. Second, competition law enhances consumer welfare by promoting competitive prices, product quality, innovation, and consumer choice. Third, effective competition policy contributes to allocative, productive, and dynamic efficiency, thereby supporting long-term economic growth. Fourth, digital markets introduce new challenges associated with data concentration, platform dominance, network effects, and algorithmic pricing, requiring adaptive regulatory frameworks and strengthened institutional capacity.This study contributes to the literature by integrating Economic Efficiency Theory, Consumer Welfare Theory, Competition Policy Theory, and Regulatory Governance Theory into a comprehensive analytical framework that explains the relationship between competition law, corporate conduct regulation, consumer protection, and economic efficiency.The findings provide policy recommendations for competition authorities and governments, particularly in developing economies, regarding digital competition governance, institutional strengthening, cross-border enforcement cooperation, and data-driven market regulation.Unlike previous studies that focus on isolated dimensions of competition law, this research offers a holistic synthesis of legal, economic, consumer welfare, and governance perspectives. It further highlights how competition law can address emerging challenges in the digital economy while simultaneously promoting consumer protection and economic efficiency.