Penelitian ini bertujuan untuk mengetahui pengaruh modal, jumlah tenaga kerja, tingkat pendidikan, pengalaman, lama jam kerja, usia para pedagang pasar terhadap tingkat keberhasilan usaha para pedagang di pasar Sukaramai kecamatan Bengkalis. Penelitian ini merupakan penelitian inferensial dengan pendekatan kuantitatif. Teknik pengambilan sampel menggunakan simple random sampling jumlah yang digunakan sebagai sampel sebanyak 47 orang pemilik toko (kios). Teknik pengumpulan data primer menggunakan kuesioner, wawancara serta observasi lapangan. Metode analisis yang digunakan adalah analisis regresi linier berganda. Hasil penelitian ini menunjukan bahwa terdapat pengaruh positif modal terhadap pendapatan pedagang di pasar Sukaramai Bengkalis yang ditunjukan dengan nilai koefisien standar regresi sebesar 0,673. Terdapat pengaruh tenaga kerja dengan nilai koefisien standar regresi sebesar 0,295, tidak terdapat  pengaruh pendidikan (dummy variable) dan lama usaha (pengalaman) terhadap peningkatan pendapatan (keberhasilan usaha), terdapat pengaruh positif lama jam kerja dengan nilai koefisien standar regresi sebesar 0,229, dan tidak terdapat pengaruh usia terhadap keberhasilan para pedagang di pasar Sukaramai kecamatan Bengkalis. Sedangkan secara simultan yakni pengaruh modal, jumlah tenaga kerja, tingkat pendidikan, pengalaman, lama jam kerja, usia terhadap tingkat keberhasilan pedagang di pasar Sukaramai kecamatan Bengkalis sebesar 94,8% sedangkan sisanya sebesar 5,2% dijelaskan oleh variabel lain yang tidak diteliti dalam penelitian ini.

Product and service quality is one of the factors that affect customer loyalty. With the products produced with good quality and the services provided with good quality, there will be an increasing number of customers for drinking water from Perumda Tirta Terubuk Bengakalis. This study aims to determine how the influence of the level of product and service quality on customer loyalty and how the form of quality and service is viewed from the perspective of Islam. This research is a quantitative research. The population of this research is 4,027 customers formulated with the slovin formula, so it becomes 100 respondents. The sampling technique used is random sampling, the sample in this study is a sampling technique where all individuals in the population either individually or together to be selected as sample members. Data was collected using questionnaires, library documentation and interviews. The data obtained were then processed and analyzed using the SPSS 23 application. The data analysis techniques used were validity test, data reliability, normality test, heteroscedasticity test, multiple linear test, t test, f test and coefficient of determination. The results of the study show that the results of the t-test analysis of product quality are 4.050 > 1.98, for service are 4.615 > 1.98, the value of f = 22.802 > 2.69, the results of the coefficient of determination (R2) are indicated by the coefficient R (RSquare) 0.170). This shows the understanding that the quality of products and services on customer loyalty is influenced by 32%. While the remaining 68% (100%-32%) is explained by other reasons