نشریه صنعت لاستیک ایران
پیاپی 113 (بهار 1403)

Today, according to the changing conditions and complexity in the business environment, managers must develop their competencies and qualifications in order to have an acceptable performance. Therefore, the aim of the current research is to provide a model for improving the competencies of key managers in Iran's Marine Engineering and Construction Company. This research is applied in terms of its purpose and is considered as an exploratory mixed research. In the qualitative phase of the research, semi-structured interview method with experts and theme analysis technique were used. For this purpose, interviews were conducted with 22 experts who were selected by purposeful and judgmental sampling and using the snowball technique. In the quantitative stage, in order to validate the created model, managers and experts in the Iran Marine Engineering and Construction Company were asked for their opinions with a questionnaire and the data were analyzed using the structural equation modeling method and smart PLS software. The sample size of 106 people was calculated by Cochran's formula and the statistical sample was selected by simple random method. Based on the results of theme analysis, the competencies of key managers were determined in 6 dimensions and 17 components, which include knowledge competency, attitudinal competency, skill competency, managerial competency, leadership competency, and value competency. Also, four categories of variables including the professional qualification of key managers, antecedents, moderating factors and consequences were identified and based on this, the research model was designed. Based on the results of the quantitative stage, the research model was approved. The competencies of key managers have a multidimensional and complex structure, the development of which can create valuable results inside and outside the organization.

This research was conducted with the aim of investigating the relationship between self-efficacy and job satisfaction with the mediating role of hard-working employees of a rubber company. The current research is descriptive of the correlation type. The statistical population of the research was made up of the employees of a rubber company, of which 200 people were selected by available sampling method. To carry out the research, first by referring to the employees of the rubber company, research questionnaires (self-efficacy, hard work and job satisfaction) were distributed among them, and after collecting, the questionnaires were analyzed. Statistical methods of correlation coefficients and regression analysis were used to analyze the data. The results of the research showed that the direct effect of self-efficacy on job satisfaction and the direct effect of self-efficacy on hardiness are confirmed. Also, the indirect effect of self-efficacy on job satisfaction was confirmed through the mediation of hardiness. Self-efficacy is an essential personal resource for employees to increase job satisfaction and promote adaptive adjustment. Since self-efficacy and factors related to it can be learned and taught as a skill, managers of rubber companies should help improve employee job satisfaction by holding self-efficacy training workshops.

The insurance market is one of the most important financial markets. Insurance companies play a significant role in the growth and development of any country by accepting various risks and strengthening financial resources for investment in the capital market. According to the nature of their activity, insurance companies will fail in fulfilling their future obligations if they are not capable enough. Emphasizing the financial ratios of insurance companies as a clear indicator of the performance of insurance companies has caused the investigation of the relationship between financial ratios and the ratio of financial wealth of insurance companies with an emphasis on car tire insurance to be the main goal of this research. In this research, four categories of financial ratios under the title of leverage ratios and capital adequacy, profitability ratios, liquidity ratios and operating ratios are considered as independent variables for 21 insurance companies in the period of 2010-2012 and the relationship of these financial ratios with the financial strength ratio of the companies Insurance has been reviewed during this time period. Based on the results of this research, profitability ratios and liquidity ratios have a high correlation with financial prosperity ratio, and the ratios of loss ratio, profitability of insurance operations, net profit to equity from the set of profitability ratios and current ratio from the set of liquidity ratios are the most effective financial ratios in the evaluation of prosperity. are financial The desirability of financial ratios indicates the financial health of insurance companies and that insurance companies will be able to fulfill their obligations, and financial ratios can be introduced as an effective component to evaluate the health and financial strength of insurance companies and get help from them to check their financial strength.

In today's world, communication with the customer and customer satisfaction is the top priority of all organizations. In particular, marketers in the service sector have highlighted the potential value associated with developing relationships between service providers and the customer. Today, companies want not only to attract customers, but also to maintain them for a lifetime. Banks are no exception to this rule. With the many efforts that banks make to provide quality services, providing services that are free of defects is unrealistic. On the other hand, customer dissatisfaction may be due to shortcomings in the services provided. Therefore, in this study, we examine the role of recovery due to service failure on the perception of justice and attitudinal loyalty and behavioral loyalty. The present research is applied and descriptive-survey. The statistical population is all citizens referring to the central branch of three state-owned banks (Melli, keshavarzi, Sepah); There are three semi-governmental banks (Trade, Welfare, Nation) and three private banks (Eghtesad-e-Novin, Pasargad, Ayandeh) in Khuzestan province, Shahrdaz-e-Fool, where 384 people were selected as a statistical sample. A questionnaire was used to collect data and the validity of the structures was assessed using confirmatory factor analysis. And Cronbach's alpha coefficient greater than 0.7 for different constructs of the questionnaire confirmed its reliability. Structural equation modeling technique was used to test the hypotheses. Findings showed that service failure has a positive and significant effect on service recovery. In addition, service recovery as a mediating role has a significant and positive effect on perceived perceptions, attitudinal and behavioral loyalty.

E-commerce represents the movement of traditional business towards digital business in the global economy. The concept of electronic commerce refers to a method in which organizations do business electronically and use a group of technologies to establish relationships with consumers and other companies, or to conduct commercial transactions. Therefore, in current research, the impact of using e-commerce and ethical hypocrisy on the performance of the company is investigated with the mediating role of knowledge management and the moderating role of knowledge management.

This research was descriptive and correlational. The studied community also includes employees who work in small and medium-sized companies in the rubber industry in Tehran province. Among these employees, 161 people were selected completely randomly and answered the questions. The obtained data was also analyzed with SPSS and PLS software.

The results showed that the use of e-commerce, ethical hypocrisy, knowledge management and entrepreneurial competence positively affect the company's performance, and knowledge management indirectly mediates the relationship between the use of e-commerce and the company's performance. In addition, the results showed that entrepreneurial competence could not moderate the relationship between the use of e-commerce and company performance.

This research was done with the aim of providing a conceptual model of sustainable supply chain based on competitive advantage for Abadan Oil Refining Company. To achieve this goal, a mixed research method was used in two qualitative and quantitative phases with an exploratory approach. In the qualitative phase, the data were analyzed through interviews with 12 people using the purposeful and snowball sampling method and with the help of the Foundation's data theory in three stages of open, central and selective coding. Atlas T software was used in qualitative phase data analysis. In the quantitative phase, using a researcher-made questionnaire with optimal validity and reliability, a total of 284 valid questionnaires. It was collected and analyzed with the help of structural equation method with PLS software. Quantitative phase respondents include procurement and purchasing department personnel in Abadan Oil Company. These people were selected and surveyed using available sampling method. The findings of the qualitative phase include the presentation of a conceptual model of sustainable supply chain based on competitive advantage, the components of this model consist of 339 open codes, 62 concepts and 22 categories. The findings of the quantitative phase showed that the components of the presented model are related to each other and in addition to the significance of the relationships, the goodness of fit indicators of the model are at their desired level.

It is not easy to achieve the same level of exploration and exploitation in the organization, but the time to reach it can be shortened. Organizations that prefer discovery and abandon exploration incur the costs of experimentation without gaining much benefit from it. These companies are full of untapped ideas and undifferentiated capabilities. In contrast, organizations that abandon exploration and engage in extraction are likely to fall into the trap of steady equilibrium. Creating a proper balance between exploration and exploitation is the main factor in the prosperity of any company's system. Therefore, the aim of this research was to design and explain the organizational ambidexterity model in multi-purpose holdings. The research method of this mixed research is exploratory. First, using the Delphi method, the organizational ambidexterity model was formed in multipurpose holdings. Based on the Delphi method, 16 subcategories in the form of 2 main categories constitute the components of the model. Then, using the structural equation modeling method, the measurement model components and the structural model of the whole model were validated at the level of multi-purpose holdings. Based on the findings of the structural equation modeling method, at the level of multi-purpose holdings under investigation, the "exploration" factor through the sub-dimensions of "communications", "strategy", "flexibility", "capability", "vision", "structure", "organizational culture" , "Entrepreneurial tendency" and "exploratory management" and "exploitation" factor through the sub-dimensions of "strategy", "adaptation", "capability", "vision", "structure", "organizational culture" and "management", the latent variable They explain the higher ."order of "organizational ambidexterity.