The problems faced by entrepreneurs are not only how these entrepreneurs provide services and promote their place of business, but what is no less important is how an entrepreneur can survive or even excel in business competition. The purpose of this study was to analyze and test the effect of product quality and service quality on consumer satisfaction at the Barokah Grocery Store through purchasing decisions. The population in this study were consumers at Barokah Grocery Store. The sampling technique was determined by quota sampling. Data analysis and hypothesis testing in this study used the Structural Equation Model - Partial Least Square (PLS-SEM). The results of the direct influence hypothesis test using the Smart PLS 3.0 application, show that product quality has a significant positive effect on purchasing decisions, service quality has a significant positive effect on purchasing decisions, product quality has a significant positive effect on consumer satisfaction, service quality has no significant effect on consumer satisfaction, decision purchases have a negative effect on consumer satisfaction. The results of the indirect hypothesis test show that product quality on purchasing decisions through consumer satisfaction has a significant negative effect, service quality on purchasing decisions through consumer satisfaction has no significant effect.

Tax is a very potential alternative. As one of the potential sources of state revenue, the tax sector is a very appropriate choice, apart from the relatively stable amount that is also a reflection of the active participation of the community in financing development. The purpose of this study was to determine the effect of Leverage and Institutional Ownership on Firm Value through Tax Avoidance. The sampling technique used in this research is purposive sampling. The population in this study is the Food and Beverage Sub-Sector Manufacturing Companies Listed on the Indonesia Stock Exchange in 2016-2020. Data analysis and hypothesis testing in this study used the Structural Equation Model - Partial Least Square (PLS-SEM). The results of the direct influence hypothesis test using the Smart PLS 3.0 application, Leverage has a positive but not significant effect on Tax avoidance., Institutional ownership has a positive but not significant effect on Tax avoidance, Leverage has a significant positive effect on firm value, Institutional ownership has a positive but significant effect on firm value , Tax avoidance has a positive but not significant effect on firm value. The results of the indirect effect hypothesis test show that Leverage on Company Value through Tax Avoidance is positive but not significant. Institutional Ownership on Company Value through Tax Avoidance is posiyive but not significant.

Product diversification is an effort made by the company to diversify products or services by creating new products or services to suit the taste and needs of consumers so as to increase sales. The purpose of this stufy was to analyze and examine the effect of product diversification that influences purchasing decisions by mediating consumer trust at the UD Subur store in Bondowoso regency. The pupolation in this study were UD Subur consumers, the sampling technique was determined by probability sampling. Analyze of data and hypotheses in this study used the Structural Equation- Partial Least Square (PLS-SEM) model. Hypotheses test result directly using the Smart PLS 3.0 application. Show that product diversification has a significant positive effect on consumers confidence, product diversification has significant positive effect on purchasing decisions. The result of the indirect effect test show that the product diversification variable on purchasing decisions through consumer trust has a significant positive effect.

Marketing is the most important part in selling and distributing goods from producers to consumers. The success of product marketing depends on what strategies are used to market their products to consumers. The purpose of this study was to analyze and examine the effect of service quality on consumer loyalty with consumer satisfaction as an intervening variable at Yosin Farma Pharmacy in Situbondo. This study uses a quantitative approach. The population in this study were the consumers of the Yosin Farma Pharmacy. The sampling technique was carried out using random sampling. Data analysis and hypothesis testing in this study used a structural equation model – Partial Least Square (PLS-SEM). The results of the direct influence hypothesis test using the Smart PLS 3.0 application, show that service quality has a significant effect on consumer satisfaction, service quality has not been proven to have a significant effect on consumer loyalty, consumer satisfaction has a significant effect on consumer loyalty. The results of the indirect effect hypothesis test show that the service quality variable on consumer loyalty through consumer satisfaction has a positive and significant effect.

Investment is a commitment to invest a number of funds or other resources that are carried out at this time with the aim of obtaining a number of benefits in the future. Development in the capital market shows that progress in line with the increase in the Index shown in the LQ45 Index. LQ45 Index based the company with high liquidity and a large market capitalization which consists of 45 companies. The purpose of this study was to analyze and examine the influence of Earning Per Share (EPS) on stock returns with dividend policy as an intervening variable. This research uses descriptive and quantitative research methods. The population in this research are companies listed in the LQ45 Index with a sample of 7 companies. The sampling technique used was purposive sampling technique.  Data analysis and hypothesis testing in this study used the Stuctural Equation Model – Partil Least Square (PLS-SEM). The results of the analysis using the smart partial least square (PLS) 3.0 software, show Earning Per Share (EPS) has a significant negative effect on Dividen policy, Earning Per Share (EPS) has a significant positive effect on Stock returns, Dividend policy is not proven to have a significant effect on stock return. The results of influential hypothesis that are not immediately pointed to the Earning Per Share (EPS) variable against Stock return with Dividend policy as a variable of intervening has a positive but insignificant effect.