فصلنامه پژوهش های مدیریت در ایران
سال هفدهم شماره 1 (پیاپی 79، بهار 1392)

Selecting a portfolio has always been a significant issue in Financial Management. The models presented for selecting the best portfolio have some deficiencies and after some time, their deficiencies would be revealed and they will be replaced by some other models. One of the problems with those models is neglecting the multifaceted indices and dimensions for final evaluation of portfolio, and these efficiencies will bring the validity of the evaluation results under question. In order to remove these efficiencies, one can use DEA (Data Envelopment Analysis) technique which is one of the MCDM (Multi-Criteria Decision Making) techniques. In this paper, two models have been presented; one finds the most efficient portfolio and the other one finds the most inefficient. In this paper, 95 companies now present in Tehran Stock Market have been investigated. The results demonstrate that out of those 95 companies, seven companies are efficient and 8 companies are utterly inefficient.

Today the reverse logistics is one of the most important subjects in supply chain area. The control of return process beside the forward supply chain permits the organization to avoid of additional costs. This paper at the first approach introduces the major success factors which result from interview with experts in this area and although stemmed from major resources in automotive reverse logistics and then it utilizes the Interpretive Structural Modeling (ISM) methodology to understand the mutual influences among the barriers so that those driving success factors, which can aggravate few more factors and those independent factors, which are influenced by driving factors are identified. By analyzing the success factors using this model, we may extract crucial factors that influence the reverse logistics activities. It can be observed that there are some factors, which have both high driving power and dependency, thus they need more attention. Finally, the implications for practice and future research are discussed.

With the rapid growth of the Internet, e-learning has been prevailed in various societies. Despite the emerging trend of using web-based learning systems to facilitate teaching and learning activities, the number of users of web-based learning systems is not increasing as fast as expected. In this research, an integrated model has been used in order to assessing the influence of IS-oriented, psychological and behavioral factors on instructors’ adoption of web-based learning systems. To examine the research model, collected data from 115 university instructors were analyzed using structural equation modeling. The results showed that subjective norm and information quality have positive effect on perceived usefulness; also, self-efficacy, service quality, subjective norm and information quality are effective on perceived ease of use. In addition, perceived usefulness, perceived ease of use and system quality all increase instructors’ intention to use web-based learning systems; however, perceived usefulness is the most important factor affecting on intention and actual use of the system (adoption).

This project investigated Benford’law as a indicator of data quality in Tehran stock exchange. Data used in this research included the first digit of daily close price and indexes. The study period was from the beginning of 1378 to the end of 1388.The top 25 percent of companies in regard to trading days were selected as a sample of the research.Kolmogorove-smirnov and Goodness of fit tests were used to estimate the model.The result showed that the investigated data was inconsistent with Benford’s law

In turbulent environment, power and success of organizations depend on the intellectual capita; abilities and the main challenges of this organizations is that how establishes new generation of intelligent organizations for knowledge edge. The problem that this research wants to solve is that how the organization that main asset is intellectual capital can obtain organizational intelligence. The conceptual model of this research has been designed based on open system model and the knowledge strategies, knowledge communities, adhocracy and intellectual capital have the enabler role for intelligence processes. Statistical population of this research is Faculty members of research centers of Ministry of Science, Research and Technology that 278 person have been selected based on classified sampling. Results show that adhocracy with %86 of coefficient has highest effect on structural intelligence processes. Also knowledge strategies and intellectual capitals correspondingly with %67 and %64 of coefficient are in second and third ranking. Also results show that adhocracy with %64, intellectual capital and knowledge strategies with %59 of coefficient correspondingly have the highest effect on human intelligence processes.

This study has been done for the purpose of evaluating the role of Organizational Justice in reinforcing Organizational Citizenship Behavior then modifying factors such as; Organizational Health Personality or Organizational Health within this relationship was discussed and assessed. In this study the five aspects of an Organizational Citizenship Behavior through an organization’s point of view has been assessed that includes; altruism, conscientiousness, courtesy, sportsmanship and civic virtue. Then, organizational justice was assessed in 3 aspects such as; distributive, interactional and procedural and finally the effects of the Health of an Organization or Organizational Healthy Personality with an emphasis from the 11 branches from the point of views of Lynden and Klingel’s were analyzes. Results from data analysis showed that there exist a 95% relationship between Organizational Justice and Organizational Citizenship Behavior and as a result, the more the personnel have positive concept about the organization’s justice, the more the Organizational Citizenship Behavior increases. And with the same confidence coefficient between Organizational Justice and Organizational Citizenship Behavior with the intervention of the Organizational Health Behavior, a relationship exists, meaning that, in each organization, there is an Organizational Health Personality. Effects of the personnel’s positive concept of an Organization’s Justice through Organizational Citizenship Behavior will be more increased. Research findings showed that strengthening the Organizational Citizenship Behavior of which is the goal of an organization is dependent on the Organization’s Justice with the mediation of the Organization’s Health Personality.

Decision-making in competitive situations is a challenge for managers. Identifying the strategic success factors(SSF) for each company and determining the company’s position relative to its competitors due to the SSF are critical which top managers uses for survival in the competitive conditions. The aim of this paper is to create a quantitative method to determine the competitive benchmarking. In this study, average cost of production, company's brand equity, product quality, marketing and sales capabilities, purchasing capabilities, customer satisfaction, production flexibility, engineering capabilities, technical research capabilities, the number of R & D projects were identified as critical success factors by the experts of profile and pipe steel industry. The Technique for order preference by similarity to ideal solution was used to determine the Positive benchmark (as positive ideal solution) and negative benchmark (as negative ideal solution).Then by considering the budget constraint, binary goal programming model has been used to maximize the positive deviation between each rival and the negative benchmark as well as to minimize the negative deviation between each rival and the positive benchmark. The results of proposed model shows that which SSF each rivals should be considered to reach the positive benchmark.

The purpose of this study is to assess the opinion of the graduate students of public administration about merging of the Sport Organization with the Youth Organization and establishing the Ministry of Sport and Youth Affairs. In this study, three method were used including phenomenographic, pathological and factor analysis. An open-end questionnaire was distributed among all graduate students of the various fields of public administration in Allameh Tabatabae University asking the advantages and limitations of the formation of the Ministry of Sport and Youth Affairs and whether it is in consistent with the sections 10, 21 and 25 of General Public Policies. In addition, in order to test the reliability of the findings, triangulation and multiple analyses were used. In the end, advantages and disadvantage of this merging are described by the extracted codes and analyzed interviews through Nvivo software. The purpose of this study is to assess opinion of master students of public NVivo software.

Knowledge sharing creates opportunities to maximize organization ability to meet those needs and generates solutions and efficiencies that provide a business with a competitive advantage. Knowledge sharing can be define as a social interaction culture, involving the exchange of employee knowledge, experiences, and skills through the whole department or organization. The concept of innovation has been closely related to “knowledge creation and knowledge sharing “. Innovation is a process where the knowledge is acquired, shared and assimilated with the aim to create new knowledge, which embodies products and services.Through exchange tacit knowledge and explicit knowledge with others, the capacity of people increase to be involved in new situation and solve new problems and it helps to build new solution for next issues. So knowledge sharing and difference kind of it, is necessary to create new knowledge and innovation. A descriptive–correlation survey approach was used in this study. And questionnaires filled by staff (n=96) in this Bank. In the 95% confidence level, the results of the study revealed that there are positive relationship between knowledge sharing and innovation, also it was found that, there are similar relationships between serial transfer and innovation in addition the same result were observed for near transfer, far transfer, and strategic transfer and expert transfer with innovation. Finally research limitation and suggestion for further researches are presented.