The objectives of this research are to study factors affecting the sustainable success and define the key performance indicators. The research instruments used for data-gathering were semi-structured interview. The results of the interviews were created by using independent variables in questionnaire. The populations of this research are the 54 fast dining business entrepreneurs within 500 metres around the Thawes Area. The information collected by 54 questionnaires with a 100% response rate and analyzed and processed by computer. The results were as follows : There are three main factors affecting the sustainable success of the fast dining business in Thawes area which are internal operation social responsibility and environmental responsibility. Internal operation composed of reasonal pricing fast services constant tasty great hospitality and always keep a good standard. Social responsibility consisted of fresh ingredients cooking process with heath concerns clean kitchen pricing display and following the law of minimum wage employment hiring. Environmental reposibility are include using uncontaminated seasoning reliable source of food ingredients non-toxic cooking material unexpired seasoning and safe tableware and food container. The result can lead to 10 key performance indicators. It’s include customer satisfaction towards services customer satisfaction on the constant taste customer satisfaction on resonable pricing customer confidence in food standard customer confidence in freshness of food ingredients customer confidence in the cleanliness of food customer confidence in the cleanliness of cooking material and kitchen customer confidence in clear pricing display employees satisfaction on their wage and customer confidence on the safety of food. The suggestions were that the entrepreneurs should improve their business to earn more profit and train their employee for a successful service. Related educational Institution and government sectors must be coordinated to develop entrepreneurs in fast dining business to maximize ability for a sustainable success.

The objectives of this research were (1) to study the influence of marketing mix which consisted of the dimensions of product or service price place and promotion on trust (2) the study the influence of marketing mix and trust on satisfaction (3) to study the influence of trust and satisfaction on loyalty of Siam Commercial Bank Public company Limited (4) to validate a causal relationship model of influence of marketing mix on trust satisfaction and customer loyalty of Siam Commercial Bank Public company Limited with empirical data. The variables in this investigation consisted of the following; marketing mix consist of the dimensions of product or service price place and promotion as the independent variables; trust and satisfaction as mediating variables; and customer loyalty as dependent variable. The researcher used quantitative methods which involved empirical research. The instrument of research was a questionnaire used to collect data form 421 customers of Siam Commercial Bank Public Company Limited Ratchadapisek (Thapra) Area office total 30 branches. The statistics in data analysis were frequency percentage mean standard deviation and structural equation model analysis. It was found the model was consistent with the empirical data. Goodness of fit measures were found to be Chi-square (x2) = 464.207; degree of freedom = 463; p-value = 0.479; Relative Chi-square (x2/ df) =1002; comparative fit index (CFI) = 1000 Standardized Root Mean Square Residual (SRMR) = 0.028; goodness of fit index (GFI) =0.942; adjusted goodness of fit index (AGFI) = 0.917; and Root Mean Square error of Approximation (RMSEA) = 0.002. It was also found that (1) marketing mix in the dimension of Product or service had a positive and direct influence on trust; (2) marketing mix in the dimension of price Had a positive and direct influence on trust; (3) marketing mix in the dimension of place had a positive and direct influence on trust; (4) marketing mix in the dimension of promotion had a positive and direct influence on trust; (5) marketing mix in the dimension of product or service had a positive and direct influence on satisfaction; (6) marketing mix in the dimension of price had a positive and direct influence on satisfaction; (7) marketing mix in the dimension of place had positive and direct influence on satisfaction; (8) marketing mix in the dimension of promotion had a positive and direct influence on satisfaction; (9) trust had positive and direct influence on satisfaction; (10) trust had a positive and direct influence on customer loyalty; and (11) satisfaction had a positive and direct influence customer loyalty. On the basis of these findings the researcher recommends that Branch of Siam Commercial Bank Public Company Limited more fully focus on marketing mix in the dimensions of product or service price place and promotion to deepen trust satisfaction and customer loyalty.

The objectives of this research were (1) To study the Influence of perceived justice on customer trust of Asita Eco Resort (2) To study the Influence of perceived justice and customer trust on customer satisfaction of Asita Eco Resort (3) To study the Influence of customer trust and satisfaction on customer word of mouth of Asita Eco Resort (4) To study the Influence of customer trust and satisfaction on customer revisited of Asita Eco Resort (5) To validate a causal relationship model of influence of perceived justice on trust satisfaction word of mouth and revisited of Asita Eco Resort’s customers.