نشریه مدیریت زنجیره ارزش
پیاپی 10 (پاییز و زمستان 1398)

Organizations need cooperation and teamwork to succeed in the current situation. On the other hand, lack of resources, the existence of inconsistent goals and individual and group conflicts have turned organizations into political arenas. In this regard, the present study aimed to investigate the effect of perceived political atmosphere on emotional commitment by considering the moderating role of teamwork and political skill. The present study is applied in terms of purpose and descriptive (survey) in terms of how to collect data and is specifically based on the structural equation model (SEM). The statistical population of the present study is all employees of the governorate and program and budget management of Yazd (248 people). According to Morgan's table, the minimum number of samples can be selected 148 people. Data were collected through a questionnaire. The validity and reliability of the questionnaire were confirmed using content validity and Cronbach's alpha, respectively. The questionnaires were distributed by convenience sampling and the data were analyzed using PLS software. The results showed that there is a negative and significant relationship between perceived political atmosphere and emotional commitment. In addition, political skill modulates the effect of perceived political climate on emotional commitment. In other words, the amount and use of political skills in the organization affects the intensity of the relationship between the two variables, but the transformative role of teamwork in the relationship between perceived political space and emotional commitment was not confirmed.

The small and medium industries in the world are of great importance, the main reason being their flexibility and they can help in the industry of a country. The purpose of this study is to evaluate the improvement of economic productivity based on innovation, with emphasis on the role of mediating human resource development. The Present Research is a Survey in terms of Method and is applied in terms of Purpose. The sample size is 384 by the Cochran formula for unlimited statistical population and selected by simple random sampling method. The required data were collected by field method and by a researcher-made questionnaire. Descriptive statistics were tested using SPSS software and the research hypotheses test and the proposed model using SEM equations using partial least squares method (PLS). The results of the collected data indicate that innovation with a path coefficient of -55.8% affects on economic productivity and also the innovation variable with a path coefficient of 96.6% due to the human resource development variable on economic productivity Human resource development with a path coefficient of 147. 9% affects economic efficiency.

The purpose of this research is to design a model of women's role in family purchasing decision-making process considering the impact of viral marketing in Tabriz metropolitan area. This research is descriptive-survey based on its nature and content, and in terms of purpose, it is a type of applied research. In this research, the methodology used to collect the data for the development of the literature is library method, and also to collect data to answer the questions, the field method has been used. The statistical population includes Tabriz metropolitan women whose number is considered unlimited. The sample size was 384 persons according to the unlimited sample size formula of 3845 people. A random sampling method was used to select the women who were used to describe the data from the frequency table and the column diagram for demographic variables and descriptive index table and histogram chart for describing the mean index. In the analytical part of the data, Various methods such as the Kalimogrov-Smirnov test for normalization, exploratory factor analysis, factor analysis, regression test, t-test and Pearson correlation were used for SPSS software. As a result, effective factors on each of the research variables were identified and the final model and applied proposals were presented.

In this study, after a detailed and detailed review of past research in the field of supply chain, the research gap and its innovation were identified. The research innovation involved considering demand behavior as a function of product prices in competitive conditions and based on that, the aim was to develop a mathematical model to design a closed loop supply chain in competitive conditions. In such a price chain, it is a fundamental factor that can determine the amount of demand and consequently change the structure of the chain. For this purpose, in the third chapter, first a function between the amount of demand and the price of products was presented. Then, by completing the research assumptions, a two-objective mathematical model of the research was presented. The first goal is to reduce costs and increase chain revenue. In other words, the first goal is to maximize supply chain profits. The second goal is to focus on market share, and by increasing the desirability of sales centers, we seek to maximize market share. By presenting such a model, it is necessary to provide techniques for achieving several goals. In this regard, the SFLA algorithm to solve this mathematical model was described. This method is a new meta-heuristic algorithm based on the behavior of frogs. For this purpose, first, by solving the model as a one-objective, the model was validated and the results were proved to be correct, logical and reliable.

Psychological factors have become one of the most important factors in organizations and achieving success and better performance. Employees who have the ability to deal with various issues in the organization and their work environment and increase their decision-making power, will certainly be effective in the performance of the organization. The purpose of this study was to investigate the effect of emotional intelligence on the creative performance of employees considering the role of environmental uncertainty and cultural intelligence. This study is categorized as a descriptive and correlational research and applied in the nature. The library and field study were used to collect data through the questionnaire. According to the research purpose and the subject, this research includes a sample of managers and employees of Urmia veterinary organization with number of 270. The proposed model and the data obtained from the questionnaire were analyzed through SMART PLS software. Finally, the results showed that emotional intelligence and environmental uncertainty have a significant effect on creative performance. Also, the effect of emotional intelligence on environmental uncertainty is significant. Also, the results of this study showed that cultural intelligence moderates the relationship between emotional intelligence and creative performance.