نشریه مدیریت بهره وری
پیاپی 40 (بهار 1396)

Presently, the production capacity of many small and medium institution are untapped. This leads to the reduction of productivity and competitive power both at national and institutional level. Thus, the objective of this study was to codify a model to make use of these untapped capacities. To do so, the research method of grounded theory was used. To gather the data, the managers of the institutions and experts were interviewed. The related documentaries through the three phasic of coding i.e. open, axial and selective were analyzed. The result showed that both national and institutional level factors effected the untapped production capacity. Using untapped capacities requires the formation and development of trans-institutional networks, so as the possibility of transferring untapped capacities to other institutions be provided. Therefore, the national level strategies and support for trans-institution networks and the strategies of industry level should be simultaneously implemented. But the environmental factors such as law and order, economical, cultural, political factors affect the success of using untapped capacities. The outcomes of using untapped capacities would be obvious on both macro and micro level, such as creating jobs, avoiding unemployment, and increasing national productivity for macro and on micro-level, cost and benefit for employers and contractors could be mentioned.

The purpose of the study was to identify and prioritizethe effective factors on organizational commitment and its effect on production productivity in ARAS Khodro Diesel Company. The research method was applied and sectional descriptive correlation. The statistical population included all of the employees of Aras Khodro Diesel Company which added up to 506 people. Using Cochran’s Formula, theSample size was 218 people. The sampling method was stratified random sampling. To gather the data questionnaires were used. The inferential statistics, heuristic factor analysis, simple linear regression and eigenvector method were used. The expert's views were used to prioritize the effective factors on organizational commitment. The results confirmed the effect of all initial factors which were listed on organizational commitment and the priorities of the factors were: 1. Organizational commitment 2. Individual factors 3. Occupationalorganizational factors 4. Occupational-environmental factors. The results Alsoshowed the significant difference of organizational commitment on production productivity.

Nowadays, Sales and Operations Planning has become a well-known and widely used process, yet, up to now, its usefulness has been neglected. This paper intended to assess the performance process of sale and operation planning through mathematical modelling procedure. Three Mixed Integer Programming (MIP) models have been developed in this study, namely fully integrated (with centralized sales, production, distribution and procurement planning), partially integrated (with centralized sales and production, but separated procurement and distribution planning), and decoupled (with centralized sales, but decentralized production, distribution and procurement planning). All three models have been developed for a multi-site manufacturing company. The results demonstrated the superiority of fully integrated model over the others.

The present paper was a descriptive-applied research. The main objective of the study was to investigate the relation of the accounting information system and productivity of service organizations according to Dematel method. The statistical population included 140 employees of the accounting department and financial institutions of Police Service plus 10 in East Azerbaijan province. Using Morgan’s table the sample size was 102 employees. The study was done in the first half of 2016. Integrating the accounting information system with effective factors on productivity and using paire comparisons among them the amount of each accounting information factors considering the productivity factors in the success of the system were ranked. The results showed that data criteria, personnels, procedures and guidelines and the software were in the mid-positive which was related to the causal factors. The factors affecting the productivity were personnels dimension 42%; software 23% and the data, procedures were the last in order respectively.

The leadership style and motive have been considered as effective factors in different models. In order to increase the productivity its effective factors should be known. The aim of this paper was to investigate investigate the effect of empowering leadership on achievement motivation, inspiring motivation and mental persuasion. The Statistical population included 444 personnels in Gas Company in Khorasan Razavi province. Using Morgan’s table the sample size was 206 people. The research method was descriptive survey and sampling method was probability. To gather the data two standard questionnaires (Ahearne & Avolio) were used. Ranjbarian’s researcher’s made questionnaire was used for achievement motivation. The reability were obtained through Cronbach’s alpha were 0.99, 0.90, 0.84 and 0.87 respectively. To analyse the data lisrel software was used. The results showed that in the the first model, empowering leadership had an affect on mental persuasion, inspring motivation, and achievement motivation of personnels, and in the second model, inspring motivation had modified role on empowering leadership and achievement motivation,but not on the mental persuasion.

Productivity means using the resources and possibilities of organization in order to get hold of the goal with least material expenditure. In the changeful and turbulent world of today, productivity is one of important factors which can make difference among the rival organizations. Motivating the employees to do the job with the highest quality and quantity increases the productivity. Transcendental leadership and spirituality in the workplace is one of the most challenging factors in today's world. The research method was an applied descriptive casual. To gather the data a questionnaire was used. The statistical population was 372 employees. Using Cochran formula the sample size was 189 employees. To analyze the data Pearson correlationand structure equation modeling were used. Spss 20 and lisrel 8.8.were used Results showed that transcendental leadership having meaningful and positive effect on the Spirituality in the Workplace and organizational productivity. Also Result showed that Spirituality in the Workplace having meaningful and positive effect on the organizational productivity.

The aim of this research was determining the proper functions of human resources in human resources architectural model in order to realize ambidexterity at Tom's firm. This quantitative study was run in two stages. At first, the architectural questionnaire was distributed among managers and assistants to differentiate the jobs.Second, human resource functions questionnaire in terms of renumeration, rewards, performance appraisal, training and development was distributed among the managers and assistants so that the proper kind of human resource functions for each architecture be distinguished. To analyse the data inferential statistics (one sample t-test) was used. The results indicated that, the rewards in job-oriented should lead the employees to ambidexterity. The rewards in partnership type should lead the employees toward the improvement ambidexterity in organization.

The aim of the study was to present a model for assessing lean production in small and medium industries through combination confirmatory factor analysis, clustering and LINMAP Technique. Four questions were raised to achieve the mentioned objective. The research method was descriptive survey. The statistical population included all the companies of small and medium units of basic metals and fabricated industries in East Azerbaijan province witch was added up to 245 companies, using random sampling method and Morgan's table the sample size was 181 companies. To gather the data a questionnaire researcher made was used. The reliability was 0.803. To analyze the data in the study of LINMAP, confirmatory factor analysis and clustering were used. The results for eight lean manufacturing structure included timely production, total quality management, maintenance, relations with suppliers, customer relations, human resource management, process management, and the betterment program on factory level.

One of the modern discourses in human resource management literature is intellectual capital. Intellectual capitals include human, structural and relationd. Human capital is the most important among them. Among the human capital components, the talents in any organization have particular position. This hidden property plays a sensitive key role in determining the value of organizations in international arena. This paper designed and suggested the optimal talent management systems and its implementation requirements. In order to develop and maintain a design, based on the theoretical literature and the Focus group meetings six subsystems including organizational communication, work environment, performance management, training, compensation and career planning were suggested. In relation to implementation requirements, instead of emphasizing on employing talented managers and later dismissing them, recognizing the existing talent in the organization and focusing on their retention and developing their skills should be maintained.

Vehicle Routing Problem (VRP) wasone of the mostpopular optimization problems that hadmany usages for productivity and efficiency of transportation systems in recent decades.The Vehicle Routing Problem with Simultaneous pick-up and deliveries (VRP/SPD), which considers simultaneous distribution and collection of goods from/to customers (VRP/SDP/SDC) was a variant of the classical vehicle routing problem where customers require simultaneous pick-up and delivery at their locations to be completed within a specified time. Applications of the SPD and its related variants are commonly come across in every day transportation and optimizing logistic planning. This paper had used Meta-heuristic to this end. The proposed method was applied for solving capacitated vehicle routing problem (CVRP) to improve the distribution efficiency and productivity with an objective of minimizing the total distance covered in each route, while considering the capacity of different routes. This problemwas essentially an NP-Hard in nature, so there was no known optimal solution method with polynomial time. To solve this NP-hard VRP a hybrid genetic based algorithm was developed. The proposed geneticalgorithm was tested on some standardproblem with respect to computational efficiency and solution quality. The presented method was implemented and its performance was further investigated by comparing it against existing heuristics for the same problem. Theresults showed that the success of the proposed approach in handling the difficult problem constraints and devising simple and robust solution mechanisms that can be integrated with routing optimization tools and used in real world applications.