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This study aims to determine the effect of product quality and service quality on consumer purchasing decisions, both partially and simultaneously, at Chickenday Restaurant Trenggalek. The method used is a quantitative approach with data processing in numerical form to objectively test the relationship between variables. The research was conducted at Chickenday Restaurant, located on Jl. Soekarno Hatta No. 20 Trenggalek. The research population consists of all consumers during the period of May–June 2025, the exact number of which is unknown. The sampling technique utilized probability sampling with a simple random sampling method, resulting in 96 respondents based on the Lemeshow formula. The data include primary data through questionnaires and observations, as well as secondary data from various sources. Data analysis was performed using multiple linear regression, t-test, and F-test. The results indicate that product quality and service quality have a positive and significant effect on purchasing decisions, both partially and simultaneously, with service quality being the more dominant variable.

This study aims to analyze the partial and simultaneous effects of Investment Decisions, Financing Decisions, and Company Size on Company Value at PT Ciputra Development Tbk for the period 2014-2024. Company value is proxied by Price to Book Value (PBV), investment decisions by Price Earning Ratio (PER), financing decisions by Debt to Equity Ratio (DER), and company size by SIZE. The method used in this study is descriptive quantitative. The population of this study is the financial statements of PT Ciputra Development Tbk for the period 2014-2024, and the sample used is the financial position report, income statement, and share price of PT Ciputra Development Tbk for the period 2014-2024. The analysis methods used are descriptive analysis, classical assumption testing, multiple linear analysis, t-test, f-test, and coefficient of determination test using SPSS version 26. The results of the study show that partially, PER and DER do not have a significant effect on PBV, while SIZE has a negative and significant effect on PBV. Simultaneously, PER, DER, and SIZE significantly affect PBV with a coefficient of determination of 94.7%, indicating that the regression model has excellent predictive power. The remaining 5.3% is influenced by other variables outside the scope of this study.

In the midst of increasingly intense competition in the digital era, organizations are required to possess human resources capable of adapting and enduring various work-related challenges. Therefore, work resilience is considered an important competency that employees must have. This study aims to examine the influence of self- esteem, self-efficacy, and adversity quotient on work resilience among supervisor members of Independent Herbalife Nutrition Indonesia in South Jakarta. This research employs a descriptive quantitative approach. Data were collected through the distribution of Likert-scale questionnaires to 103 respondents using a saturated sampling technique. The data obtained were analyzed using multiple linear regression analysis with the assistance of Microsoft Excel 2019 and IBM SPSS version 22. The results of the study indicate that self-efficacy has a positive and significant effect on work resilience. Meanwhile, self-esteem and adversity quotient do not have a significant partial effect on work resilience. However, simultaneously, self-esteem, self-efficacy, and adversity quotient have a significant effect on work resilience.

The increasingly competitive business world demands companies to be able to implement appropriate marketing strategies to improve consumer purchasing decisions. Price and service quality are important factors that influence consumer behavior in determining purchasing choices. PT Era Permata Sejahtera, as a company engaged in general services, has experienced a decline in profits in recent years, which is thought to be related to pricing policies and the quality of service provided to consumers. Therefore, this study aims to analyze the influence of price and service quality on purchasing decisions at PT Era Permata Sejahtera, both partially and simultaneously. This study uses a quantitative approach with a descriptive method. Data were collected through distributing questionnaires to consumers of PT Era Permata Sejahtera, with a purposive sampling technique. Data analysis was carried out using multiple linear regression with the help of SPSS version 26 software, and equipped with validity tests, reliability tests, t-tests, F-tests, and coefficients of determination. The results of the study indicate that partially, price does not significantly influence consumer purchasing decisions, while service quality has a positive and significant influence. Simultaneously, price and service quality significantly influence consumer purchasing decisions.

This study aims to determine the influence of work discipline (variable X1) and work culture (variable X2) on employee performance (variable Y). The research method used is a descriptive and verifiable method with a quantitative approach. Data collection techniques include observation, interviews, documentation, and literature studies to obtain comprehensive and relevant data for the purpose of the research. Data analysis techniques are carried out systematically, starting from the data compilation process, data tabulation, to the hypothesis testing stage. Data analysis uses multiple linear regression to determine the influence of each independent variable on the dependent variable. The results showed that the determination coefficient (R²) value was 69.8%, which means that work discipline and work culture simultaneously have a significant effect on employee performance. Meanwhile, 30.2% of employee performance was influenced by other factors outside of the study, such as motivation, work ability, leadership, personality, job satisfaction, work environment, and employee loyalty. Thus, it can be concluded that improving work discipline and a positive work culture plays an important role in improving.