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Stock market volatility represents a key indicator of financial market uncertainty, particularly in emerging economies where market structures are still evolving and are highly sensitive to global shocks. This study aims to analyze and compare the volatility dynamics of stock markets in four Asian emerging economies: Indonesia, India, Malaysia, and Thailand. The research employs a quantitative approach using daily stock index data from January 2011 to January 2026 obtained from Yahoo Finance. Stock returns are calculated using logarithmic transformation and analyzed using the Generalized Autoregressive Conditional Heteroskedasticity (GARCH(1,1)) model. Prior to model estimation, stationarity and ARCH effect tests are conducted to ensure the validity of volatility modeling. The empirical findings indicate that all return series exhibit non-normal distribution, strong volatility clustering, and significant ARCH effects. The estimation results show that both ARCH and GARCH parameters are statistically significant, with persistence levels close to unity across all markets, implying that volatility shocks tend to persist over a long period. These findings suggest that emerging stock markets in Asia are highly sensitive to external shocks and exhibit long-memory volatility behavior. The results provide important implications for investors and policymakers in designing effective risk management and market stabilization strategies.

This study aims to examine the influence of price, brand image, and product innovation on the level of customer loyalty of Honda motorcycles, especially in Purworejo Regency. The method used in this study is a quantitative approach with an explanatory design. Data collection was carried out by distributing questionnaires to 100 respondents with the following requirements: a minimum of 17 years old, domiciled in Purworejo Regency, have used or owned a Honda motorcycle for at least 1 year, and selected using a purposive sampling technique. Then the data obtained were analyzed using multiple linear regression with the help of IBM SPSS Statistics 25. Before being analyzed, validity and reliability tests were conducted to determine the instrument can be used and a classical assumption test was conducted to ensure that the regression model meets statistical requirements. The results of the research analysis simultaneously show that price, brand image, and product innovation have a significant influence on customer loyalty. However, this is different from the partial test which indicates that only brand image has a significant influence in shaping customer loyalty. Brand image was also found to be the most dominant factor in increasing the tendency to repurchase, resistance to competing brands, and positive customer recommendations.

This research is motivated by the low level of awareness among some students regarding maintaining a clean school environment and proper waste management. SMP IT Khairunnas,Bengkulu City, implemented a clean environment program as an effort to build students'environmental awareness through cleaning activities, waste sorting, and environmental management.school actively. This study aims to analyze the process of the environmental cleanup program in exploring students' awareness of waste management, identifying supporting and inhibiting factors of the program, and explaining the impact of the program on students' daily behavior in maintaining a clean school environment. This study uses a qualitative approach with fieldresearch. Data collection techniques were carried out through observation, interviews, and documentation. The primary data sources in this study were the principal, teachers, and students of SMP IT Khairunnas, Bengkulu City.Data analysis used the Miles and Huberman model which includes data reduction, data presentation, and conclusion drawing. Data validity was carried out through technical triangulation and source triangulation. The results of the study indicate that the environmental cleanup program at SMP IT Khairunnas, Bengkulu City was implemented through class duty activities, mutual cooperation, sorting organic and inorganic waste, waste banks, and environmental education activities.

This study aims to describe and analyze the implementation of Project-Based Learning (PjBL) in improving elementary school students’ learning achievement in the Education Coordination Area (Korwil) of Rajadesa District, Ciamis Regency. The study employed a qualitative approach using a case study method to obtain an in-depth understanding of the planning, implementation, and evaluation of project-based learning. The research subjects consisted of principals, teachers, students, and school supervisors involved in the learning process. Data were collected through observation, in-depth interviews, and documentation studies. The data were analyzed using the interactive analysis model of Miles and Huberman, including data reduction, data display, and conclusion drawing. Data validity was ensured through source triangulation, technique triangulation, and member checking. The findings revealed that the implementation of PjBL was carried out through three main stages: planning, collaborative implementation, and authentic assessment. PjBL was proven to improve students’ cognitive, affective, and psychomotor learning achievement, as well as enhance critical thinking, communication, collaboration, and creativity skills. The novelty of this study lies in the contextual PjBL implementation model based on local characteristics that integrates collaborative, contextual, and reflective learning aspects into a unified learning cycle.

This study is motivated by the growing public demand for reliable and high-quality public transportation services such as the Trans Solo Bus on corridor 4. The purpose of this research is to analyze the influence of Facilities, Innovation, and Service Quality on User Interest, both partially and simultaneously. This study employs a quantitative method with a sample of 100 respondents who are users of the Trans Solo Bus on corridor 4. Data were collected through questionnaires and analyzed using IBM SPSS Statistics through several tests, including validity, reliability, normality, multicollinearity, heteroscedasticity, multiple linear regression, t-test, F-test, and coefficient of determination (R²). The results revealed that Facilities, Innovation, and Service Quality significantly influence User Interest, either individually or simultaneously. These findings imply that improving facilities, implementing continuous innovation, and ensuring high service quality can increase public interest in using Trans Solo Bus services, thus supporting the development of sustainable urban transportation.

This study aims to analyze the influence of influencer marketing, brand image, and e-WOM on purchasing decisions on the Shopee marketplace. A quantitative descriptive approach was used, involving 204 Shopee consumers who had previously purchased specific products. They were selected using purposive sampling based on Jacob Cohen's calculation guidelines to ensure the sample accurately represented the population. Data were collected through a questionnaire, which was then analyzed using validity and reliability tests, classical assumption evaluation, multiple linear regression, and hypothesis testing using t-tests and F-tests. The regression analysis showed that influencer marketing had a 34.8% influence on purchasing decisions, brand image contributed 32.7%, and e-WOM had an influence of 20.0%. Furthermore, the coefficient of determination (R²) showed that these three variables together explained 86.9% of the variation in consumer purchasing decisions. The t- and F-tests confirmed that each variable had a significant and positive influence, both partially and simultaneously, on purchasing decisions on the Shopee marketplace.

This study was conducted to systematically explore the influence of the level of ease of transactions and the quality of e-commerce services on the process of determining consumer purchasing decisions in Batam City. The research framework was built with a descriptive-oriented quantitative approach through the involvement of 100 respondents who actively utilize digital transaction services, which were determined using a purposive sampling technique based on the Lemeshow formulation to ensure the adequacy and representativeness of the sample. Empirical data were collected through a structured questionnaire and then processed using statistical analysis stages that included testing the validity and reliability of the instrument, evaluation of classical assumptions, multiple linear regression modeling, and verification of hypotheses through t-tests and F-tests. The results of data processing revealed that the variable of ease of transactions contributed 18.8% to purchasing decisions, while service quality contributed an influence of 63.5%. The coefficient of determination (R²) reaching 73.3% indicates that both independent variables simultaneously have substantial explanatory power towards variations in consumer purchasing behavior. Both partial and simultaneous testing confirmed a significant influence, thus confirming that simplifying transaction mechanisms and strengthening digital service quality are strategic determinants in driving e-commerce consumer purchasing decisions in Batam City.

This study aims to develop a Puzzle Book learning media for the topic of angle measurement and to examine its validity, practicality, and effectiveness for third-grade elementary school students. The research employed a Research and Development (R&D) approach using the ADDIE model and involved 26 third-grade students as participants. Data were collected through expert validation sheets, student response questionnaires, and learning achievement tests, which were analyzed using descriptive quantitative and qualitative methods. The results showed that the Puzzle Book obtained a validity score of 98.0% from media experts and 100% from material experts, both categorized as highly valid. Student responses reached 100%, indicating that the media is highly practical and engaging. Furthermore, the analysis of learning outcomes revealed a gain score of 0.9187 in the high category, demonstrating that the Puzzle Book effectively improves students’ problem-solving abilities in angle measurement. Overall, the Puzzle Book learning media is highly feasible, practical, and effective for classroom implementation, as its interactive design and alignment with third-grade learning characteristics help students understand angle concepts more concretely, enjoyably, and meaningfully.

Abstract This study aims to analyze the level of digital literacy among students of the Islamic Religious Education (PAI) study program at State Islamic Higher Education Institutions (PTKIN) and its implications for the quality of their understanding of fiqh al-ibadah. Employing a descriptive qualitative approach with data collection techniques comprising comprehensive literature study and analysis of student digital behavior trends, this research identifies two poles interacting dynamically: on one hand, the expansion of access to religious content through digital platforms has opened unprecedented opportunities for democratizing Islamic jurisprudence knowledge; on the other, the tendency toward instant content consumption potentially reduces depth of understanding of ijtihad methodology and classical fiqh epistemology. Findings indicate that PAI students generally possess adequate technical digital skills, yet remain weak in the critical literacy dimension namely the ability to evaluate the validity, authority, and religious context of digital sources. This phenomenon produces a literacy paradox: students who appear "digitally literate" operationally are paradoxically vulnerable to fragmented and superficial fiqh understanding. This study recommends integrating critical digital literacy education into the PAI curriculum at PTKIN  not as an elective add-on, but as a core competency embedded inseparably within the broader process of fiqh learning. Only through this approach can PAI students leverage digital platforms optimally as tools that strengthen, rather than replace, the structured and methodological tradition of Islamic scholarship

This study aimed to examine the extent to which trust, perceived security, and ease of use of the GrabFood platform influence consumer transaction decisions in Batam City. The method used was descriptive quantitative, involving 204 respondents who had made purchases through GrabFood, selected through purposive sampling based on Jacob Cohen's formula to ensure representative results. Data were collected using a questionnaire and analyzed through a series of procedures, including validity and reliability testing, classical assumption checking, multiple linear regression, and hypothesis testing using t-tests and F-tests. The study findings revealed that trust contributed 22.0%, security 38.9%, and ease of use 23.2% to purchasing decisions. The coefficient of determination (R²) of 65.6% confirmed that these three factors simultaneously explained a significant portion of the variation in consumer purchasing behavior. Furthermore, t-tests and F-tests confirmed a positive and significant influence, both individually and collectively, on consumer decisions to use GrabFood.

This study aims to determine the effect of product availability, communication effectiveness, and promotional strategy on sales volume at PT.Distribusindo Cemerlang Jaya, a cosmetic and skincare distribution company in Batam city. The background of this research is based on pre-survey result indicating suboptimal sales volume along with operational challenges including stock shortages, communicatiob gaps, and limited promotional activities.ths research employs a quantitative method. The population consist of all comsumers, with a sample of 43 respondent selected using a saturated sampling technique. Data were collected through questionnaires using a likert scale and analyzed using validity and reliability test, classical assumption tests, multiple linear regression, t-test, F-test, and coefficient of determination (R²) with SPSS. Result show that partially, product availability does not significantly affect sales volume (sig. 0,313 > 0,05), and communication effectiveness also does not significantly affect sales volume (sig. 0,898 > 0,05). However, promotional strategy has a positive and significant effect  on sales volume (sig, 0,000 < 0,05). Simultaneously, all three variables significantly affect sales volume (F = 212.642, sig. 0,000 < 0,05). The coefficient of determination (R²) is 0,942 indicating that 94,2% of the variation in sales volume is explained by the three independent variables. Promotional strategy is the most dominant factor influencing sales volume is explained by the three independent variables. Promotional strategy is the most dominant factor influencing sales volume at PT.Distribusindo Cemerlang Jaya.  

This study aims to describe the strategies of Islamic Religious Education (PAI) teachers in increasing the learning participation of low-ability students at SDN 008 Tebing Karimun. Learning participation is an important indicator of learning success, but in reality there is still low student involvement in the learning process. Inhibiting factors come from internal aspects such as low confidence and limited cognitive abilities, as well as external aspects in the form of less varied learning strategies and less supportive classroom environments. This study uses a qualitative approach with a descriptive type, involving PAI teachers as the main informants and students as supporting informants. Data was collected through observation, interviews, and documentation, then analyzed with an interactive model that included data reduction, data presentation, and conclusion drawn, and tested for validity through triangulation. The results of the study showed that teachers' strategies include active learning, group discussions, individual approaches, and the use of learning media. The obstacles faced include low student confidence, cognitive limitations, and lack of variety of methods. The solutions carried out by teachers are in the form of providing motivation, applying innovative methods, and creating a conducive learning environment. This study concludes that PAI teachers' strategies play an important role in increasing the learning participation of low-ability students through innovative, interactive, and student-centered learning.

The phenomenon of broken home families among elementary school students has become a significant social and psychological issue affecting learning motivation, emotional stability, character development, and academic achievement. This study aims to analyze the relationship between incomplete family conditions and students’ learning motivation, as well as the role of cognitive resilience, social support, and the school environment in maintaining academic achievement among students at MI Al Ikhlas Ancaran. Specifically, this study examines: (1) students’ cognitive conditions and learning motivation, (2) factors influencing cognitive resilience, (3) the role of Islamic Religious Education (PAI) in supporting learning motivation, and (4) Islamic value-based strategies to strengthen students’ cognitive resilience and learning motivation. This study employed a qualitative descriptive approach using observation, in-depth interviews, and documentation as data collection techniques. The participants included students from broken home families, Islamic Religious Education teachers, and homeroom teachers. Data analysis was conducted through data reduction, data presentation, and conclusion drawing, while validity was ensured through source and method triangulation. The findings indicate that students from broken home families generally possess relatively good cognitive resilience, enabling them to adapt to academic challenges and manage emotional stress effectively. Their learning motivation was categorized as moderate to good, reflecting strong internal encouragement to achieve despite family difficulties. The study also found that Islamic value-based strategies effectively strengthen cognitive resilience and learning motivation. Furthermore, a positive relationship exists between cognitive resilience and learning motivation, where higher resilience contributes to stronger learning motivation. Supportive family environments, madrasah settings, and positive peer relationships were identified as important factors in enhancing students’ resilience and academic motivation.

This study aimed to uncover the extent to which eWOM, perceived brand image, and platform ease of use influence consumer purchasing decisions for Skintific moisturizer on Tokopedia. The method employed was descriptive quantitative, selecting a sample of 96 consumers who had purchased Skintific products, using a purposive sampling technique based on the Lemeshow formula to ensure representativeness. Data were collected through a questionnaire and then analyzed using a series of tests including validity, reliability, classical assumption checking, multiple linear regression, and hypothesis testing using t- and F-tests. The analysis showed that eWOM contributed 13.9% to purchasing decisions, brand image 23.4%, and ease of use 46.1%. The coefficient of determination (R²) of 75.4% indicates that these variables collectively explain most of the variation in purchasing decisions. The t- and F-tests confirmed a positive and significant influence, both individually and simultaneously, on consumer purchasing behavior on Tokopedia.

This study aims to explore the extent to which brand image, product quality, and trust influence purchasing decisions for Pixy two-way cake through the Blibli platform in Batam City. The approach used is quantitative descriptive, involving 100 consumers who previously purchased Pixy two-way cake on Blibli, selected through purposive sampling with Lemeshow calculation guidelines to ensure sample representativeness. Data collection was conducted using a questionnaire, then analyzed through validity and reliability tests, classical assumption evaluation, multiple linear regression, and hypothesis testing using t-tests and F-tests. The results of the regression analysis indicate that brand image has a 24.7% influence on purchasing decisions, product quality contributes 34.0%, and trust plays a role of 29.2%. Furthermore, the coefficient of determination (R²) shows that these three variables collectively explain 74.0% of the variation in purchasing decisions. The t-test and F-test confirm that the influence of each variable is significant and positive, both partially and simultaneously, on consumer purchasing decisions at Blibli in Batam City.

This study aimed to examine the influence of promotional strategies and user-friendliness on consumer purchasing decisions on the ShopeeFood platform in Batam City. The research used a descriptive quantitative approach, involving 100 actively transacting respondents, selected through purposive sampling based on Lemeshow's calculation guidelines to ensure sample representativeness. Data were collected through a structured questionnaire and analyzed using a series of validity and reliability tests, classical assumption checks, multiple linear regression, and hypothesis testing using t- and F-tests. The research findings indicated that promotions contributed 42.4% to purchasing decisions, while user-friendliness contributed 26.0%. The coefficient of determination (R²) of 78.9% confirmed that these two variables collectively explained most of the variation in purchasing behavior. The results of the t- and F-tests confirmed that promotions and user-friendliness had a significant influence, both partially and simultaneously, emphasizing the importance of integrating effective digital marketing strategies and an intuitive application interface to drive consumer decisions on ShopeeFood in Batam City.

This practice is essentially based on clauses in employment contracts intended to prevent employees from resigning before the contract term expires. However, from a legal perspective, this practice raises challenges regarding the validity of employment contracts and the legal protections afforded to employees. The objective of this study is to evaluate the validity of the diploma retention practice through the lens of labor law and civil law, as well as to explore the types of legal protections that may be available to employees. The research methodology employed is a normative legal approach, utilizing a legal and conceptual framework, and supported by a literature review of primary and secondary legal sources. This analysis emphasizes the principles of contract law, labor protection principles, and relevant human rights standards. The research findings indicate that the practice of withholding diplomas lacks a clear legal basis under Indonesian law and potentially violates the criteria for the validity of contracts, particularly regarding the abuse of circumstances (misbruik van omstandigheden). Furthermore, this practice can be categorized as an illegal act because it infringes upon workers’ property rights and their freedom to seek employment. Legal protection for workers can be facilitated through preventive strategies, such as strengthening labor regulations and oversight, as well as through enforcement actions, including civil litigation and the resolution of industrial disputes.

This study aims to comprehensively examine the role of brand image, trust, and promotional intensity in shaping purchasing decisions for Maybelline two-way cake cosmetic products in Batam City. The implemented research design adopted a descriptive quantitative approach involving 204 participants who had actual experience in purchasing the product in question. Respondents were determined through purposive sampling technique based on Jacob Cohen's calculations to ensure empirical representativeness of the research sample. Primary data were collected through the distribution of structured questionnaire instruments, then processed and analyzed using hierarchical statistical stages that included testing the validity and reliability of the instrument, verification of classical assumptions, multiple linear regression modeling, and hypothesis testing through partial (t) and simultaneous (F) tests. Empirical findings indicate that brand image contributes 23.9% to purchasing decisions, trust influences 39.1%, while promotion contributes the most dominant influence at 14.7%. The coefficient of determination (R²) value of 82.9% indicates that the three independent variables are simultaneously able to explain variations in consumer purchasing decisions in a substantial proportion. The results of both partial and simultaneous tests confirm a positive and significant influence between brand image, trust, and promotion on purchasing decisions for Maybelline cosmetics in Batam.

This study aims to analyze the implementation of Good Governance principles—transparency, accountability, participation, effectiveness, efficiency, rule of law, and inclusivity—in public administration services at the Sungai Tabukan Sub-district Office, especially in the Service, Economy, and Social Welfare Section. The method used is a qualitative approach with a case study design through observation, in-depth interviews, and documentation of sub-district officials and service user communities. The data was analyzed through reduction, presentation, and conclusion drawn, and tested for validity by triangulation and member check techniques. The results of the study show that procedural transparency, compliance with SOPs, and administrative accountability mechanisms have been running relatively well, so that services such as SKKM, marriage recommendations, and population documents can be processed openly and can be traced. However, the limitations of human resources, facilities, and digital infrastructure cause the effectiveness and efficiency of services to still be conditional and depend on key actors. Community participation has been facilitated through forums and feedback channels, but it is still dominated by village intermediaries so that the direct involvement of residents is not optimal. In terms of the rule of law and inclusivity, services have been based on regulations and are non-discriminatory, although there are still inequality in access and speed of services between regions. The main supporting factors include leadership commitment, internal work culture, and the existence of SOPs, while inhibiting factors include limited human resources, facilities, and information systems that have not been integrated. It was concluded that the implementation of Good Governance in public administration services in Sungai Tabukan District has been running functionally, but has not been fully consolidated systemically. Therefore, it is necessary to strengthen policies through the digitization of services, increase the capacity of the apparatus, improve facilities, integrate data-based accountability and transparency systems, and expand citizen participation channels to realize more professional, fair, and sustainable public administration service.

This study aims to examine the effect of the use of the Quick Response Code Indonesian Standard (QRIS) as part of digital payment instruments on the personal financial management of employees at PT. Alkana Diza Nusantara in the era of a cashless society. The rapid development of financial technology has encouraged a shift in transaction behavior from cash to cashless systems, making it important to understand its impact on individual financial management more comprehensively. This study employs a quantitative approach with a causal associative research design to analyze the relationship between variables. The population consists of 42 employees, with total sampling used as the sampling technique. Data were collected through a Likert-scale questionnaire that had been tested for validity and reliability. Data analysis techniques include classical assumption tests, simple linear regression analysis, t-test, and the coefficient of determination (R²) to measure the extent of the independent variable’s influence on the dependent variable. The results show that the use of QRIS has a positive and significant effect on personal financial management. This is evidenced by a regression coefficient of 0.923 and a significance value of 0.000 (<0.05). Furthermore, the coefficient of determination (R²) of 0.735 indicates that QRIS usage explains 73.5% of the variation in personal financial management, while the remaining 26.5% is influenced by other variables outside the scope of this study. These findings suggest that digital payment usage can enhance the effectiveness, efficiency, and discipline of individual financial management