This research aims to study 1) personal characteristics that affect the purchasing behavior of consumers in convenience stores in Nong-Don District Saraburi province and 2) retail market factors that affect the purchasing behavior in convenience stores in Nong-Don District Saraburi province. The sample group used in the research consisted of 400 people in Nong Don District Saraburi province. The instrument used for data collection was a questionnaire. The statistics used for data analysis were percentage mean standard deviation a statistical significance test with a value of 0.05. The results of the research are that 1) most of the sample groups were female aged 21-25 years with status occupation student a monthly income less than or equal to 10000 Baht and an education level below bachelors degree. 2) Furthermore factors influenced the purchasing behavior in convenience stores. Overall the average score was at the highest level. The process had the highest average score followed by the product and distribution physical characteristics personnel and marketing communications. The aspect with the least average score was the price. 3) Shopping behavior in convenience stores was analyzed by hypothesis testing. It was found that different sexes had different purchasing behavior in convenience stores in Nong-Don District Saraburi province. It was significantly different at the 0.05 level and age marital status occupation monthly income educational backgrounds. The different is consumers purchasing behavior in convenience stores in Nong-Don District Saraburi province were significantly different at the 0.05 level. Retail market factors like products price distribution marketing promotion personnel process and physical appearance affect the purchasing behavior in convenience stores in Nong-Don District Saraburi province.

The purpose of this research is 1) to compare the trend on goods purchase classified by demographic characteristics 2) to study the service marketing mix and pattern on the leading of life having the effect on goods purchase behavior 3) to study the goods purchase behavior having the effect on behavioral trend on goods purchase. Sampling group used in the research are 400 customers purchasing goods at Thonburi Occasional Market (Sanamluang 2) by using Questionnaires as the instruments in gathering information data. Analysis statistics are frequency percentage mean and standard deviation t-test One-way ANOVA and Multiple Regression Analysis. It is found as a result of the research that most of the Questionnaire repliers are of male sex with ages ranging from 25 years to 34 years; marital status as being married/or cohabitation; educational level of Bachelor Degree engaged in the occupation of private company employees earning monthly incomes ranging from 10001 Baht to 20000 Baht; placing the importance on service market mix in the overall aspects and the incomes which are the aspects of the products prices places marketing promotions sales staff physical characteristics and the process in high level; paying interests in the pattern on the leading of life in the overall aspects and by the aspect which are the aspects of the activities interests and opinions in high level; number of travels for goods purchase per 3 months is approximately 5 times averagely; average expenses on goods purchase each time is 2307 Baht with a trend to return for the goods purchase again and will recommend other persons to come for goods purchase as well. As a result of hypothetical test it is found that customers of different ages have the behaviors on goods purchase on the aspect of number of travels for goods purchase per 3 months differently with implicitly statistical significance at the level of 0.05 and the service market mix on the aspect of the prices and places have the effect on goods purchase behavior on the aspect of the number of travels for goods purchase per 3 months; the service market mix on the aspect of physical characteristics and pattern on the leading of life activities and interests have the effect on goods purchase behavior on the aspect of the expenses on goods purchase each time. In addition the goods purchase behavior on the aspects of the goods purchase each time has the effect on the trend on the goods purchase behavior on the aspect of a return for goods purchase again and the goods purchase behavior on the aspect of the number of travels for goods purchase per 3 months has the effect on the trend on the goods purchase behavior on the aspect of goods purchase behavior on the aspect of recommending the other persons to come for goods purchase.