ghazaleh taheri

Although with the increasing use of social media, the impact of user-generated content on customer decision-making has increased, no comprehensive research has been done to evaluate the quality of user-generated content on social media so far. Therefore, the purpose of this study is to provide a framework for evaluating the quality of user-generated content on social media. In the first stage of the research, the dimensions and indicators of the quality of user-generated content have been identified and extracted using the meta-synthesis method. The statistical population includes a collection of articles in the related fields collected by a library survey through the Internet. In the second stage, Shannon’s entropy-based approach has been used to prioritize the dimensions and indices extracted, based on the frequency of the obtained codes. According to the results from meta-synthesis, six main categories, 13 dimensions and 207 indicators have been presented as the final framework, which include the following: “content” (including textual and audio-visual dimensions), “validity” (including user credentials and information source credentials), “presentation” (including structure and form dimensions), “integrity” (including accuracy and security dimensions), “background” (including time and demographic dimensions) and “performance” (including usefulness, cognitive and socio-emotional dimensions). This study tries to inform managers and those active in the field of e-commerce, of how to create effective content so that it can benefit them from the new technology of social commerce.

This study examines the effect of stock exchanges on information content of important accounting variables such as earnings, book value and cash flows for the years 1384 to 1390 in listed companies in Tehran Stock Exchange. To measure the information content of these variables, we use the average annual stock price, stock price at the end of the period, and stock price in the quarter following the end of the fiscal year. The first result of the research, which confirmed the results of previous research, is the availability of information content of each of the variables of profit, book value and cash flows, which results in the information about each of these variables being based on the price Stockholders are influential and investors make use of this information in their decisions. The results of the research show that the volume of trading has a positive and significant effect on the information content of the earnings per share and the book value of each share. This result shows that the information content of the earnings per share and the book value of each stock that is embedded in stock prices is higher in companies with higher trading volumes. Other results show that the volume of transactions did not have a significant effect on the information content of the cash flows of each share compared to the average stock price, stock price at the end of the period, and stock price in the quarter after the end of the fiscal year.

Nowadays, people expect to be well-understood in the organization and to be ‎respected. Ethical leadership shows that the leader's effort to create an ‎ethical context to influence the behavior of the staff, and, on the other hand, it must be ‎stated that maintaining the organization without talented and loyal employees is ‎impossible because they are the ones who provide the services with higher quality. Management of potential and its detection and finally match the job with abilities is the hypothesis of this study. This is an applied descriptive-correlation study. The statistical population of this research is the staff of a private sector service ‎company (N= 243). Using the Cochran sampling method, the sample size of ‎this study is estimated to be 149 people. The data collection tool is a questionnaire. 153 completed questionnaires were returned and analyzed. The statistical ‎method of the present study is structural equations based on regression. According to the results, the main hypothesis was confirmed in this research, ‎the hypothesis that ethical leadership has a positive effect on organizational talent ‎management, and seven hypotheses have been approved from 12 research hypotheses. ‎ Given the positive implications of ethical leadership for organizations and ‎communities, managers need to reinforce this type of leadership.

In spite of significant role of professors in education process at universities and the importance of professors’ ethics, there are not so many researches to develop conceptual models of professors’ ethics. This paper has investigated faculty members’ professional ethics in view of students.
The research method for identifying the indicators is text logical analysis and for verification and re-conceptualization is a survey. The research population includes all students of public non-medical universities, that among them, 373 subjects were selected. Sampling method was stratified and research instrument was a researcher-made questionnaire. Alpha-Chronbach, exploratory factor analysis, t-test and Friedman ranking test were implied for data analysis.
The concept of professors’ professional ethics was designed through factor analysis including three dimensions and eight indicators as “justice, regulation-orientation, moderation, tolerance, generosity, motivation, effective teaching and scientific guiding”. Extracted factor explains 62% of the variable variance. All points are more than average level and professors’ tolerance at the highest level in view of students.
This investigation indicated that in view of students, professors have some gaps in following eight indicators of professional ethics with desired level. Therefore, it can be acknowledged that universities and the supreme organizations need to adopt more effective actions to improve professors’ professional ethics.