The aim of this research is to determine and to assess the effective factors on customer loyalty, concerning the internet-purchase of products and services of Tehran tourism agencies. For this purpose, the standardized questionnaire was distributed among on-line internet customers of Tehran tourism agencies and finally 384 questionnaires were applied in analyzing the research hypotheses. The data obtained from customers were analyzed using confirmatory factor analysis technique and the structural equations modeling (SEM). The findings of the research with regard to the proposed model and its nine hypotheses from the highest to lowest route coefficients and hypothesis confirmation are respectively: the effect of customer loyalty with the route coefficient of 0.559; the effect of search capability with the route coefficient of 0.481; the effect of satisfaction on customer trust with the route coefficient of 0.388; the effect of transaction cost on customer satisfaction with the route coefficient of 0.321; the effect of search capability on customer trust with the route coefficient of 0.292; the effect of trust on customer loyalty with the route coefficient of 0.184; the effect of the perceived security on customer satisfaction with the route coefficient of 0.159. The above seven hypotheses have been confirmed and the effect perceived security effect on customer trust and the effect of transaction cost on customer trust with the route coefficient of 0.018 were finally rejected.

This paper presents a study to investigate the effects of outsourcing logistics on improvement of export activities in minerals firms. The proposed study designs a questionnaire with 20 questions in Likert scale and distributes it among 67 firms out of 81 active organizations, which are responsible for exporting minerals in province of Tehran, Iran. Using structural equation modeling, the study has determined that there was a meaningful relationship between strategic orientations of exporters against outsourcing third part logistics (3PL) and basic and additional capabilities of 3PL. In addition, there was a meaningful relationship between basic capabilities of 3PL and competitive advantage of exporters but there was not any meaningful relationship between additional capabilities of 3PL and competitive advantage of exporters. Finally, there was a meaningful relationship between competitive advantage of exporters and performance of exports. In summary, the survey indicates that the outsourcing logistics influences positively on the performance of minerals firms.