Ali Haji Gholam Saryazdi; Ali Rajabzadeh Ghatari; Ali Naghi Mashayekhi; Alireza Hassanzadeh
Volume 24, Issue 4 , December 2020, , Pages 127-154
Abstract
The systems dynamics emphasize the participation of individuals in modeling as well as modeling evaluation. In recent years, participative model building methods have been developed, both individually and in groups, as well as crowd model building, which are based on the mass participation of people ...
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The systems dynamics emphasize the participation of individuals in modeling as well as modeling evaluation. In recent years, participative model building methods have been developed, both individually and in groups, as well as crowd model building, which are based on the mass participation of people through the Web 2 and social networks. However, so far no systematic study has been done to evaluate the effectiveness and compare these modeling methods. On the other hand, in the development of modeling methods, especially crowd model building; special features and characteristics have been enumerated for each of them, which needs to be carefully examined by evaluating them. Therefore, this article seeks to systematically evaluate and compare the crowd and group model building. For this purpose, these two modeling methods have been studied through an online questionnaire. The results showed that the participants acknowledged the positive effect of crowd and group model building sessions in achieving the goals as well as the importance and usefulness of these sessions. However, the results showed that crowd model building is more useful in recognizing different dimensions of crowdfunding with a divergent view, dissemination of topics, and culture building in society, while group model building has been more useful in deepening peoplechr('39')s knowledge of the dimensions of crowdfunding with a convergent view, increasing the commitment of individuals. The results also showed that the diversity of individuals and the informal structure of the sessions have a significant effect on the success of crowd and group model building.
Ali Haji Gholam Saryazdi; Ali rajabzadeh Ghatari; Ali Naghi Mashayekhi; Alireza Hasanzadeh
Volume 21, Issue 2 , September 2017, , Pages 1-26
Abstract
Problem definition is the most vital and important step in system dynamics approach. It is the basis for other steps of dynamic modeling and one of the main conditions in the effectiveness of modeling and its success. Considering its importance, there is scant literature on process of problem definition ...
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Problem definition is the most vital and important step in system dynamics approach. It is the basis for other steps of dynamic modeling and one of the main conditions in the effectiveness of modeling and its success. Considering its importance, there is scant literature on process of problem definition and attributes as well as indicators of dynamic problems. With aims to explain the problem definition, this article creates problem definition framework through the systematic and structured process by extracting the indicators and factors that determine a dynamic problem. At this point all the articles listed at the first two rounds of system dynamics research conferences in 1976 and 1981 and also 33 around of the system dynamics conference from 1983 to 2015 as well as the Journal of System Dynamics Review (SDR) and scientific databases include Elsevier, Wiley, Springer and Emerald were examined. Finally, a framework was designed with 6 indicators including structure of the problem, problem`s stakeholders, border of problem, problem complexity, dynamics and nature of the problem, which altogether consists of 24 indexes. A comprehensive framework for the diagnosis of dynamics problem is main finding of this paper.
Ali Naghi Mashayekhi; SeyedAlireza Mirbagheri
Volume 19, Issue 1 , July 2015, , Pages 191-213
Abstract
Many companies are dependent on purchasing the required professional services (such as managerial, marketing, accounting, legal, and IT services) from specialist contractors. The contract between such contractors and clients forms an agency relationship, so the agency theory may be used to regulate the ...
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Many companies are dependent on purchasing the required professional services (such as managerial, marketing, accounting, legal, and IT services) from specialist contractors. The contract between such contractors and clients forms an agency relationship, so the agency theory may be used to regulate the relationship between them. However, since the abstract knowledge is the subject of exchange between the client and professional service provider and there is a knowledge asymmetry between these two parties, the application of agency theory as it is used for traditional owner-manager agency relationship is not possible for principal-professional agent relations. In this article, we expand the agency theory to be applicable in such agency relationships. We suggest that a combination of behavior-based and outcome-based contracts be employed in principal-professional agent relationships, if possible. Moreover, we discuss why it is very hard or even impossible to have a direct control over professional service contractor and to measure the outcomes of its services. We finally propose two alternative mechanisms (1-trust and self-control, and 2-indirect control) for reducing opportunistic behaviors and solving some agency problems occurring in principal-professional agent relations.
Ali Naghi Mashayekhi; Ali Akbar Farhangi; Mansour Moemeni; Sirous Alidousti
Volume 9, Issue 20 , October 2005, , Pages 191-232
Abstract
Study of the relationship between two important variables, emotional intelligence and leadership style, has been the main purpose of this research.
The population under study consists of 266 marketing and sales managers from Mashhad food and automobile industries from which a sample of 73 peaple was ...
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Study of the relationship between two important variables, emotional intelligence and leadership style, has been the main purpose of this research.
The population under study consists of 266 marketing and sales managers from Mashhad food and automobile industries from which a sample of 73 peaple was drawn. Data was collected by means of two questionnaires, including Weisinger’s emotional intelligence questionnair and Barak’s leadership style questionnair.
Face validity and split half method were used to determine the questionnaires validity and reliability respectively. The result of split half reliability for emotional intelligence and leadership style questionnaires was known to be .083 and .079 respectively, which the results of the research revealed that there is a positive and meaningful relation between emotional intelligence and transformational leadership style, and a negative relation between emotional intelligence and transactional leadership style of the population under study.
