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The purpose of this study is to determine the extent to which the relationship between quality and promotion influences customer decisions in selecting Micro People's Business Credit (KUR) products at PT Bank Sumsel Babel KC Palembang. This study applies a quantitative approach, where the entire population consists of 765 customers, with 88 people being sampled through a purposive sampling technique. The data sources used in this study include primary and secondary data, obtained through direct interviews with related parties and the distribution of questionnaires to respondents who have met the research criteria. To analyze the data, a series of instrument feasibility tests, classical assumption tests, and data processing using multiple linear regression analysis were conducted. This analysis includes a t-test (partial), F-test (simultaneous), and the coefficient of determination (R²) to measure the strength of the influence of the independent variables on the dependent variable. Based on the results of the analysis, it was found that both service quality and promotion have a positive and significant influence on consumer decisions, both partially and simultaneously. This indicates that the better the service quality and the more effective the promotion, the higher the tendency of consumers to decide to choose KUR Micro products. The coefficient of determination (R²) of 0.894 indicates that 89.4% of customer decisions can be explained by service quality and promotions, while the remaining 10.6% is influenced by other factors not examined in this study, such as economic conditions, personal experience, recommendations from third parties, and psychological factors. These results provide an important influence for bank management in developing more targeted service and promotion strategies. The results of this study can also serve as a basis for strategic policy-making in developing banking products based on customer needs.

This study aims to analyze the influence of E-Promotion through Instagram, Google Maps Rating, and payment methods on iPhone purchasing decisions at Ibgadgetstore Purwokerto. The background of this study is based on the importance of digital marketing strategies and the ease of payment systems in influencing consumer behavior in the modern era. Along with the development of technology, consumers increasingly rely on social media and digital platforms to search for information before making a purchase. Therefore, companies are required to be able to utilize digital promotional media optimally, provide flexible payment systems, and maintain reputations through online reviews. The research method used is a quantitative approach with a survey technique. Data were collected by distributing questionnaires to consumers who have made transactions at Ibgadgetstore. The number of samples was set at 111 respondents using a non-probability sampling technique. The collected data were then analyzed using multiple linear regression methods using SPSS software, so that an overview of the influence of each independent variable on purchasing decisions was obtained. The results showed that the three independent variables, namely E-Promotion, Google Maps Rating, and payment methods, had a positive and significant effect both partially and simultaneously. E-Promotion through Instagram was proven to increase consumer purchasing interest by presenting interactive, interesting, and informative promotional content. Google Maps ratings strengthen consumer trust in stores through positive reviews and transparent digital ratings. Meanwhile, diverse, secure, and flexible payment methods can encourage consumers to make faster purchasing decisions because they perceive the transaction process as easier. Thus, this study confirms that digital marketing strategies, online reputation, and payment convenience play a significant role in influencing consumer purchasing decisions.

This study aims to analyze the influence of Personal Branding, Perceived Value, and Product Quality on consumer purchasing decisions for Carolline Crafty Crochet home industry knitting craft products. The background of this study is based on the increasing competition in the handicraft business, so that business owners are required to be able to build a strong personal image, provide perceived value to consumers, and maintain product quality to increase purchasing attractiveness. The data source used is primary data obtained through distributing questionnaires to respondents. The population of this study were consumers who had purchased Carolline Crafty Crochet products both offline and online. The sampling technique used a nonprobability sampling method with a purposive sampling approach. The calculation of the number of samples used the Lemeshow formula and obtained 96 respondents who met the research criteria. Data analysis was carried out with the help of SPSS version 27 software through validity tests, reliability tests, classical assumption tests, multiple linear regression analysis, and partial and simultaneous hypothesis testing. The results showed that the variables Personal Branding, Perceived Value, and Product Quality had a positive and significant effect on consumer purchasing decisions. This indicates that the stronger the business owner's personal branding, the higher the perceived value felt by consumers, and the better the quality of the products offered, the greater the likelihood of consumers making purchasing decisions. These findings provide practical implications for small and medium enterprises (SMEs), particularly in the handicraft industry, that marketing strategies based on personal branding, increasing perceived value, and controlling product quality need to be optimized to increase consumer loyalty and purchasing interest. Thus, this study emphasizes the importance of integrating aspects of personal branding, perceived value, and product quality in shaping purchasing decisions, which can serve as a reference for developing sustainable business strategies in today's competitive era.

The rapid development of digital technology has significantly transformed consumer behavior, making online applications the primary channel for interaction and transactions. These applications provide convenience for consumers to access various products and services quickly and efficiently. In this context, the quality of service provided, along with the rating and reviews shared online, plays a crucial role in influencing purchasing decisions. For instance, the Fore Coffee app allows consumers to leave reviews and ratings, which can influence other consumers in selecting the desired products or services. These factors are essential in increasing customers' purchase intention, as consumers tend to rely on the experiences of others as references when making decisions. This study uses a quantitative approach by distributing questionnaires to consumers of the Fore Coffee app in West Surabaya. The study aims to determine the extent to which service quality, ratings, and reviews affect consumers' purchase intentions. The data collected were then processed using SPSS version 20 to conduct validity tests, reliability tests, multiple linear regression, and t-tests. Validity and reliability tests were conducted to ensure that the instruments used in this research accurately and consistently measure the relevant variables. Multiple linear regression was used to analyze the relationship between the independent variables (service quality, ratings, and reviews) and the dependent variable (purchase intention). Meanwhile, t-tests were used to examine the significant impact of each variable on purchase intention. The findings of this study can provide valuable insights for Fore Coffee in formulating more effective marketing strategies. The results indicate that service quality, ratings, and reviews significantly influence consumers' purchase intentions. With this understanding, Fore Coffee can improve the customer experience and strengthen its competitive position in an increasingly competitive market.

The TikTok application, which now offers the TikTok Shop feature, is one example of how significant changes in the digital commerce industry have been fueled by information technology advancements. This feature creates a real-time interactive experience by enabling customers to shop directly through live broadcasting. The purpose of this study is to examine how using the live streaming feature affects purchasing decisions, particularly for students at STAI Sangatta. 64 students enrolled in STAI Sangatta's Islamic Economics Study Program were given a questionnaire as part of this quantitative field study. Validity tests, reliability tests, t and f tests, simple linear regression, and classical assumptions were used to assess the data. The analysis's findings indicate that live broadcasting significantly influences consumers' decisions to buy. The resulting regression equation is Y = 10.166 - 0.742X. The hypothesis is supported since the t-value of 10.178 is greater than the t-table of 1.999 and has a significance level of 0.000 (p < 0.05). At 103.584, the F test is likewise significant. The influence of the live streaming variable is indicated by the coefficient of determination (R2) of 62.6%, whilst other elements not included in this research model influence 37.4%.

This study aims to analyze the sentiment of customer reviews of the Grand Jatra Hotel Pekanbaru on the Google Review platform using the Naïve Bayes algorithm. Social media and online review platforms are increasingly becoming the primary source of information for potential customers in making purchasing decisions, particularly in the hospitality sector. Therefore, sentiment analysis of customer reviews is crucial for understanding consumer perceptions and providing strategic input for hotels in improving service quality. The research data was collected using web scraping techniques to obtain publicly available customer reviews. The obtained data was then processed through text preprocessing stages including case folding, tokenizing, normalization, stopword removal, and stemming. The Term Frequency-Inverse Document Frequency (TF-IDF) method was then used to weight each word, so that more relevant words have a greater influence in the classification process. The sentiment classification process was carried out into two main categories, namely positive and negative. The Naïve Bayes model was trained using training data and then tested with test data to measure the algorithm's performance in classifying sentiment. The evaluation results show that the model built is able to achieve an accuracy level of 98%, with a precision value of 97% and a recall of 100% in the positive class, and 92% in the negative class. These findings confirm that the Naïve Bayes algorithm can be effectively used in analyzing customer sentiment towards hotel services and facilities. Practically, the results of this study are expected to provide insight for the management of Grand Jatra Hotel Pekanbaru in understanding customer perceptions, identifying service strengths and weaknesses, and formulating more targeted marketing strategies. In addition, this study can also be a reference for the development of similar studies in the hotel industry and other service sectors.

This study aims to examine the influence of price, promotion, and product quality on the repurchase intention of Kopi Kenangan products among students of the Faculty of Social and Political Sciences, Mulawarman University. The research focuses on how effective marketing strategies can foster customer loyalty toward local coffee brands. The theoretical framework is based on the marketing mix, consumer decision-making processes, and indicators of customer loyalty. The study employs a quantitative research method, with data collected through questionnaires distributed to 100 respondents. The respondents were selected using purposive sampling, based on specific criteria determined by the researcher to ensure they could provide relevant information aligned with the research objectives. Data analysis was conducted using multiple linear regression with SPSS version 26. The findings indicate that price, promotion, and product quality each have a positive and significant effect on repurchase intention. Among these factors, product quality exerts the strongest influence, followed by promotion, and finally, price. These results suggest that enhancing product quality, implementing effective promotional strategies, and maintaining reasonable pricing can significantly increase customers’ likelihood of making repeat purchases. Based on the results, this study recommends that Kopi Kenangan continue to prioritize maintaining high and consistent product quality, as it plays a crucial role in shaping repurchase intentions. Additionally, promotional efforts should be continuously optimized to attract and retain customers in an increasingly competitive coffee market. Pricing strategies should also be monitored to remain competitive while ensuring profitability. Overall, the study concludes that product quality, supported by strategic promotions and competitive pricing, is essential for building and sustaining customer loyalty. By focusing on these factors, Kopi Kenangan can strengthen its market position and foster long-term relationships with its customers

This study aims to analyze the impact of Brand Ambassador, Website Quality, and Product Variety on Purchase Decisions in Shopee E-Commerce in Jakarta. The data used in this study is primary data obtained through the distribution of questionnaires to Shopee users in Jakarta. The sampling technique used is Non-Probability Sampling, with the method being Accidental Sampling. The sample size taken was 103 respondents based on the Lemeshow formula. This study focuses on three key variables that are believed to have a significant impact on consumer purchase decisions. Brand Ambassador refers to public figures or celebrities who represent a particular brand and can influence consumers' perceptions of the products offered. The role of a Brand Ambassador is crucial because it can enhance the attractiveness and credibility of a product in the eyes of consumers. Website Quality includes aspects such as design, navigation, loading speed, and user-friendliness while shopping. A website that is easy to use, fast, and visually appealing will enhance user satisfaction, which in turn can encourage purchasing decisions. Product Variety is related to the range of products available on the e-commerce platform, offering consumers more choices to meet their needs. The more varied the products offered, the higher the likelihood that consumers will make a purchase. The analysis tool used in this study is SPSS version 26 for regression analysis. The research findings show that Brand Ambassador, Website Quality, and Product Variety have a significant effect on Purchase Decisions in Shopee E-Commerce in Jakarta. An attractive Brand Ambassador, a high-quality website, and a wide variety of products have been proven to influence consumers’ purchase decisions. These findings indicate that Shopee E-Commerce needs to continuously improve these factors to enhance consumer experience, strengthen loyalty, and increase sales.

This study aims to determine audience perceptions of the Instagram Reels advertisement content of Wardah Matte Lip Cream "Tasya Farasya Approved" edition. This advertisement is the result of a collaboration between the local cosmetics brand Wardah and the famous beauty influencer Tasya Farasya. This phenomenon is interesting to study considering the trend of influencer-based marketing is increasingly dominant in beauty product promotion strategies, especially in building emotional closeness with consumers and maintaining loyalty to local brands. Consumer perception is an important aspect because it will influence purchasing interest, brand image, and future purchasing decisions. This study uses the perception theory from Jalaludin Rakhmat (2015) which explains that perception is a person's experience of an object or phenomenon obtained through the process of processing, interpreting, and drawing conclusions from the information received. Based on this theory, this study adopted a quantitative descriptive approach. Data were collected by distributing questionnaires to 100 respondents who are followers of Wardah's official Instagram account. Respondents were selected using purposive sampling to ensure the relevance of the data to the research focus. Descriptive data analysis was conducted using SPSS software to identify audience perception patterns regarding advertising content elements, such as visual appeal, message relevance, influencer credibility, and the product image's alignment with Wardah's brand image. This analysis is expected to reveal the extent to which brand and beauty influencer collaborations can create positive perceptions in consumers' minds. The research findings are expected to contribute to the development of digital marketing strategies in the cosmetics industry, particularly in utilizing influencer marketing effectively. Furthermore, the findings of this study can serve as a reference for other local brands in designing promotional campaigns that are relevant, engaging, and aligned with the characteristics of their target audience on social media.

This study aims to analyze the influence of product quality, price, and product innovation on purchasing decisions for Viva lipstick, with brand image as a mediating variable, among female university students in Semarang. The research employed a quantitative approach with a survey method, using purposive sampling of 100 female students who use Viva lipstick. Data were collected through a structured questionnaire and analyzed using Structural Equation Modeling (SEM) to examine both direct and indirect relationships among the variables. The results reveal that product quality has a positive and significant effect on both purchasing decisions and brand image. This indicates that consumers’ perceptions of Viva lipstick’s quality—such as color durability, texture smoothness, and comfort in use—play an important role in shaping a positive brand image and encouraging purchasing decisions. In contrast, price and product innovation were found to have no significant effect on either purchasing decisions or brand image, suggesting that the current pricing strategy and product innovation efforts have not yet become the main attraction for consumers. Brand image was found to have a positive and significant effect on purchasing decisions and to mediate the influence of product quality on purchasing decisions. This mediation is partial, meaning that product quality influences purchasing decisions not only directly but also indirectly through the enhancement of brand image. The practical implications of this study emphasize the importance for Viva Cosmetics to continuously improve product quality, including formulation and packaging, while strengthening brand communication strategies to ensure consistent positive consumer perceptions. Furthermore, the company should reassess its pricing and product innovation strategies to remain competitive in the dynamic cosmetics market. By focusing on product quality and brand image, Viva is expected to increase consumer appeal and loyalty, particularly within the university student market segment.

This study aims to determine the effect of promotion, price, and brand image on consumer purchasing decisions in the Cap Fajar Chips Home Industry. The study uses a quantitative approach with a survey method. The study population is consumers who have made purchases at the store, with a total of 150 respondents selected as a sample. The data collection method is carried out through distributing questionnaires, then the data is analyzed using multiple linear regression techniques to test the effect of each independent variable, both partially and simultaneously, on purchasing decisions. The results of the analysis show that the promotion variable (X1) does not have a partial significant effect on purchasing decisions, as evidenced by a significance value of 0.502 (> 0.05). This indicates that the intensity or form of promotion carried out is not enough to directly influence consumer purchasing decisions. In contrast to promotions, the price variable (X2) is proven to have a positive and significant effect on purchasing decisions. A significance value of 0.000 (< 0.05) indicates that competitive and affordable pricing is an important factor that encourages consumers to choose Cap Fajar chips products. Similarly, the brand image variable (X3) has a partial significant influence on purchasing decisions, with a significance value of 0.013 (<0.05). This indicates that consumers' positive perceptions of brand reputation and quality can strengthen the desire to purchase. Simultaneously, the three variables—promotion, price, and brand image—have a significant influence on consumer purchasing decisions. This finding is evidenced by a significance value of 0.001 (<0.05). Based on the results of the study, it can be concluded that price and brand image are the dominant elements that determine purchasing decisions for Cap Fajar chips, while promotions require a more effective strategy to provide a real impact.

This study explores the influence of live streaming mode on the purchase intention of tropical fruits among consumers in Henan, China, in the context of the rapid growth of e-commerce. Live streaming has emerged as a dynamic and interactive platform that enables real-time engagement between sellers and buyers, offering visual product demonstrations and instant feedback opportunities. The research focuses on three critical factors affecting purchase intention: perceived trust, perceived value, and perceived risk. A quantitative research design was employed, collecting data from 392 participants through structured questionnaires. The analysis indicates that interactive communication, transparent information sharing, and authentic presentations during live streaming significantly enhance perceived trust and perceived value. Higher perceived trust fosters a stronger sense of reliability toward sellers, while increased perceived value motivates consumers by highlighting product quality, freshness, and fair pricing. Furthermore, effective live streaming strategies can substantially reduce perceived risks related to product authenticity, quality uncertainty, and transaction security, creating a more favorable purchase environment. The results suggest that the integration of engaging storytelling, professional product showcasing, and active audience interaction serves as a catalyst for influencing consumer attitudes and behaviors toward purchasing tropical fruits. This study enriches the existing literature on live streaming commerce by highlighting its psychological and behavioral impacts on consumer decision-making. In practical terms, the findings offer actionable insights for marketers and fruit sellers, emphasizing the importance of building trust, delivering genuine product experiences, and minimizing risks to maximize purchase intentions. These strategies are particularly relevant for agricultural e-commerce in Henan, where live streaming can bridge the gap between rural producers and urban consumers. Overall, this research provides both theoretical contributions to the study of digital co sumer behavior and practical guidance for optimizing live streaming as a competitive marketing tool in the fresh produce industry.

This study aims to analyze the influence of brand ambassadors, sales promotions, and brand image on the purchase intention of Mie Lemonilo products in Balikpapan. The research utilizes both primary and secondary data. Primary data were collected through a questionnaire distributed to followers of the Mie Lemonilo Instagram account in Balikpapan, while secondary data were gathered from various supporting sources. The population in this study consisted of all followers of the Mie Lemonilo Instagram account in Balikpapan, with a sample size of 100 individuals. The results of the study indicate that Brand Ambassador (X1) does not significantly influence the purchase intention of Mie Lemonilo. This suggests that the impact of the brand ambassador on consumer purchasing decisions in Balikpapan is not strong enough, possibly due to insufficient engagement or connection between the brand ambassador and consumers. In contrast, Sales Promotion (X2) has a significant positive impact on the purchase intention of Mie Lemonilo. This indicates that sales promotions, such as discounts or special offers, have a substantial effect in attracting consumer interest and increasing purchase intention in Balikpapan. Meanwhile, Brand Image (X3) does not show a significant influence on the purchase intention of Mie Lemonilo. This may be due to other factors being more dominant in influencing consumers’ purchase decisions, such as product price, quality, or social factors and market trends. This study provides insights that, although brand image is important, sales promotions play a more significant role in driving purchase intention for Mie Lemonilo products in Balikpapan. Therefore, the company should focus more on promotional strategies to increase sales while continuing to consider the role of brand ambassadors and brand image in their marketing strategies.

This study was conducted with the motivation to analyze the impact of product innovation, word-of-mouth (WOM), and social media marketing on purchasing decisions at one of the English language courses located in Kampung Inggris, Pare, Kediri, namely Global English. In the digital era and increasingly fierce competition among non-formal educational institutions, understanding the factors that influence purchasing decisions is very important. This study used a quantitative approach with a survey method via Google Form, which was distributed to active students at the institution. The research instrument, a closed questionnaire, was designed to measure students' perceptions of the product innovation offered, the influence of word-of-mouth communication, and the effectiveness of marketing strategies through social media. The analysis results show that product innovation has a significant influence on purchasing decisions, particularly in terms of offering new programs that are in line with market needs, such as the "Studycation" program that combines learning and recreation. Word-of-mouth has also been shown to play an important role in building trust among potential consumers through positive experiences from previous users. In addition, social media marketing makes a real contribution to reaching a wider audience, increasing interaction, and strengthening the institution's image in the public eye. These three variables, both partially and simultaneously, had a positive and significant influence on purchasing decisions. These findings indicate that integrated, digital-based marketing strategies are key to attracting and retaining consumer interest in the informal education sector. This research is expected to serve as a reference for course providers and other educational institutions in designing innovative, efficient, and adaptive marketing strategies to address changing consumer behavior in the digital era.

Ikat weaving is one of the typical cultural heritage of East Nusa Tenggara, especially the Sikka area in Maumere. This traditional fabric is made through a process of weaving manually by the local community, making it unique and has high artistic value. Even though it is in the modern era, the appeal of ikat woven fabrics remains strong and has not been displaced by the development of the times. The production of this fabric is still actively ongoing and has become a symbol of regional cultural identity that is full of philosophical and aesthetic meaning. This study aims to analyze the influence of price on the purchase decision of Sikka ikat woven fabric by consumers. The research was carried out at the Alok Maumere Market in 2021 with a sample of 96 respondents, who were selected using random sampling techniques. The research method used is quantitative descriptive, with validity, reliability, normality, linearity, and heteroscedasticity testing. The result of the simple linear regression analysis shows an equation: purchase result = 17.140 + 0.603 price. The value of t is calculated (7.993) > t of the table (1.985), so that H₀ is subtracted and H₁ is accepted. This means that price has a significant effect on purchasing decisions. The coefficient of determination (R² = 0.398) shows that price explains 39.8% of the variation in the purchase decision. Thus, it can be concluded that price has a positive influence on consumers' decisions in buying Sikka ikat woven fabrics. This means that the more the price is in line with consumer expectations, the higher the buying interest in this traditional product. This research provides important input for MSME actors and local artisans to be more careful in determining competitive prices while still reflecting the quality and cultural value of the product.

Product quality, price, and service are important aspects that greatly influence consumer purchasing decisions, especially in the highly competitive snack retail sector. This study aims to analyze in depth the influence of product quality, price, and service quality on consumer purchasing decisions at the Griyo Snack Shop Sri Sumingan. This study uses a quantitative approach with a survey method. The data collection technique was carried out by distributing questionnaires with a Likert scale to 175 respondents selected using the accidental sampling method, namely sampling based on anyone who accidentally met the researcher and qualified as a consumer. The data obtained were then analyzed using multiple linear regression analysis with the help of SPSS version 23 software. The results of the t-test showed that the variables of product quality, price, and service quality each had a significant influence on consumer purchasing decisions, evidenced by a significance value of 0.000 (less than 0.05). Meanwhile, the F test showed that simultaneously the three variables also had a significant influence on purchasing decisions, with an F-value of 308.162 and a p-value of 0.000. The coefficient of determination (R²) of 0.844 indicates that 84.4% of the variability in consumer purchasing decisions can be explained by product quality, price, and service quality, while the remaining 15.6% is influenced by other factors outside the research variables. This finding implies that business actors in the snack retail sector must pay attention to and improve their product quality, set competitive prices, and provide optimal service to maintain and increase consumer loyalty.  

This study aims to analyze the influence of Online Advertising on purchasing decisions for Skintific products by considering the mediating role of Trust and Social Media Engagement. Skintific, as a digital-native skincare brand, actively utilizes digital marketing strategies through various social media platforms such as Instagram, Tiktok, or e-commerce like Shopee to increase consumer appeal, especially in Malang City. This study uses a quantitative approach with the Partial Least Squares Structual Equation Modeling (PLS-SEM) method to test the relationship between variables. The sample was obtained through a purposive sampling technique with 114 respondents who are active consumers of Skintific. The results of this study indicate that Online Advertising has a significant effect on purchasing decisions, both directly and through the mediation of Trust and Social Media Engagement. Theoretically, this study extends the application of the Theory of Reasoned Action (TRA) in explaining the formation of attitudes and subjective norms of consumers towards digital advertising, as well as the Technology Acceptance Model (TAM) which shows how perceived ease and usefulness of digital advertising content affect user engagement. Customer Trust Theory in E-Commerce is used to explain how trust is formed in online transactions, while Relationship Marketing Theory emphasizes the importance of long-term interactions between brands and consumers. The Theory of Planned Behavior (TPB) expands this framework by adding the construct of behavioral control, which explains how consumers' perceptions of ease and barriers contribute to purchasing decisions. Social Influence Theory is used to understand the influence of social norms and online community opinions on purchase intentions, and Uses and Gratifications Theory (UGT) to examine consumer motivations in accessing and interacting with digital content based on information needs, affection, and self-identity. This research provides theoretical contributions in strengthening the relevance of integrating several consumer behavior theories in a digital context.

This study aims to analyze and compare the performance of the Naive Bayes, K-Nearest Neighbors (KNN), and Decision Tree algorithms in predicting the purchase intention of e-commerce visitors using the Online Shoppers Purchasing Intention Dataset, which consists of 12,330 records and 18 variables, with the Revenue variable serving as the classification target. The preprocessing stage involved transforming categorical and boolean variables into numerical form, standardizing features using StandardScaler, and splitting the dataset into 80 percent training data and 20 percent testing data. Model evaluation was conducted using accuracy, precision, recall, F1-score, and ROC-AUC metrics, and was further strengthened by 10-fold cross-validation to obtain more stable results. The findings indicate that KNN achieved the highest accuracy of 0.866180, while Naive Bayes produced the highest recall value of 0.690998 and the highest ROC-AUC value of 0.821696. Meanwhile, Decision Tree demonstrated relatively balanced performance with an accuracy of 0.857259 and an F1-score of 0.571776, whereas the cross-validation results identified KNN as the model with the highest average accuracy of 0.8770. These findings suggest that the selection of a classification model for purchase intention prediction cannot rely solely on a single evaluation metric, as each algorithm possesses different strengths. Therefore, a comparative approach among algorithms can help determine the most suitable model for supporting consumer behavior analysis on e-commerce platforms.

This study was conducted at Bio Live Healthy Home, located in Sei Bamban District, Serdang Bedagai Regency. The primary objective of this research is to determine how lifestyle, reference groups, and consumer attitudes influence the decision to use services offered by the institution. In a rapidly growing health and wellness industry, understanding consumer behavior is essential to improve service quality and increase customer engagement. To achieve the research objectives, the study employed a survey method with a quantitative approach. The target population consisted of service users, and a sample of 92 respondents was selected. Data collection was carried out through a combination of observation, interviews, documentation, and the distribution of structured questionnaires. The questionnaire was designed to capture variables related to lifestyle, reference groups, attitudes, and service usage decisions. Before conducting the main analysis, the data were tested for validity and reliability to ensure that the instrument accurately measured what it intended to measure. Furthermore, classical assumption tests, including normality, multicollinearity, and heteroscedasticity tests, were conducted to confirm the feasibility of using a multiple linear regression model. The analysis was performed using the Statistical Package for the Social Sciences (SPSS) software. The results of the study revealed that lifestyle, reference groups, and attitudes each had a significant and positive influence on the decision to use services at Bio Live Healthy Home. This indicates that individuals with health-conscious lifestyles, influenced by their social environment and holding positive attitudes toward wellness services, are more likely to engage with the services offered. Moreover, these three factors collectively contributed to a meaningful explanation of the variation in consumer decisions. In conclusion, the findings highlight the importance for service providers to consider psychological and social factors when designing marketing strategies.

This research aims to develop a recommendation system that can help retail business owners design more effective, data-driven promotional strategies. This system utilizes data mining techniques and the Apriori algorithm to extract association rules from consumer transaction data, thereby identifying more specific and accurate consumer purchasing patterns. Based on these patterns, the system can provide relevant promotional recommendations, such as product bundling, buy-one-get-one offers, or special discounts, which can attract consumer interest and increase sales. The system's implementation process is presented in the form of an interactive dashboard, which allows business owners to upload their transaction data, adjust analysis parameters, and visualize the promotional recommendation results in a way that is easier to understand and can be directly applied to their marketing strategies. This system not only provides well-structured promotional recommendations but also enables retail business owners to make more informed and efficient decisions in determining the type of promotion to implement, based on insights gained from analyzing their own transaction data. By utilizing this system, business owners can optimize their promotional strategies more efficiently and effectively, because they can quickly identify promotions that best suit consumer purchasing patterns. This can increase impulse sales, as relevant promotions will encourage consumers to purchase more products. Furthermore, this system shows great potential in increasing consumer engagement, as the promotions provided are more personalized and tailored to each consumer's preferences. Therefore, the implementation of this recommendation system has the potential to drive significant sales growth and help retail business owners achieve greater profits, as well as accelerate their business decision-making process. This system, ultimately, not only benefits business owners but also enhances the consumer shopping experience with promotions that are more tailored to their needs and preferences.