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Open Access Article
1 - Evaluation of Students' Performance before and after Parent Involvement in Math Educaton with DEA
S. E. Haghi M. Rostamy-Malkhalifeh M. H. Behzadi A. ShahvaraniThis paper describes two proposed strategies for involving families in mathematics education and forming a mathematical association for parents with the aim of involving parents in their children's mathematics education, implemented at one of the Tehran schools, describ MoreThis paper describes two proposed strategies for involving families in mathematics education and forming a mathematical association for parents with the aim of involving parents in their children's mathematics education, implemented at one of the Tehran schools, describing the outcomes and performance of students before and after school. They were analyzed using Data Envelopment Analysis (DEA).Data Envelopment Analysis (DEA) is a linear programming method whose main purpose is to compare and evaluate the efficiency of a number of similar decision-making units, to compare and analyze them with different amounts of inputs and outputs.In this research, inputs on various aspects of cultural, social, and economic conditions (such as family income, physical and mental health of family members, parents' occupation, etc.) of families of sixth grade elementary school boy students in TALAYEDARAN school, district 4 of Tehran, and outputs The success of the math test is the interest of the students in these math activities in math lessons and ethical discipline Manuscript profile -
Open Access Article
2 - The Most Productive Scale Compared to Demand Fulfillment (Case Study: Insurance Companies)
M. Ahadzadeh namin E. KhamsehEconomics depends on the economic scale of planning. Economists study the characteristics of the production function, while community operating management focuses on demand realization, so that loss of sales or inventory prevents cost reductions and maximizes profits. H MoreEconomics depends on the economic scale of planning. Economists study the characteristics of the production function, while community operating management focuses on demand realization, so that loss of sales or inventory prevents cost reductions and maximizes profits. However, companies with a lack of capacity need to achieve economies of scale and demand to realize them simultaneously, especially when corporate demand is fluctuating. But always the customer's demand is not equal to output, the demand level may be less than the maximum output level of the highest productivity scale (MPSS), between the highest output level of the MPSS and the maximum output level, or greater than the maximum output level. In this paper, we intend to find the highest level of productivity in relation to the demand for active insurance companies in 1396 in all three scenarios. In fact, we will examine the applicability of Lee's (2016) paper in insurance companies in Iran. Manuscript profile -
Open Access Article
3 - Assessment of Efficiency, Ranking and Productivity in the Insurance Organization (Tamin-e-Ejtemae) with Data Envelopment Analysis and Malmquist Approach
Farzaneh Heidarpoor Fahime DehghaniContinuous growthing in the service part is an important subject in the developed economic and competition world. Thus assessment of efficiency and productivity and recognizing the activity of parts are an important aim for an organization to reach the MoreContinuous growthing in the service part is an important subject in the developed economic and competition world. Thus assessment of efficiency and productivity and recognizing the activity of parts are an important aim for an organization to reach the targets point. So , this study illustrates the efficiency, productivity and ranking of the insurance s parts of tamin-e-ejtemae with two approach: Data Envelopment Analysis(DEA) & Malmquist and comparing these two methods. The main targets are recognizing inefficiency parts , peers for them, input slacks and determining how is the return to scale(CRS or VRS). For exact assessment of efficiency and ranking , all of the insurances parts in Tehran (31 DMU) has been considered during 1385-1386. The reasons under VRS show that the average of scale efficiency, X- efficiency and technical efficiency are 0.786, 0.921, 0.731 , so scale inefficiency X- inefficiency and technical inefficiency are 0.214, 0.79, 0.269. Under the Malmquist approach although scale efficiency, X- efficiency and technical efficiency decreased , the technological efficiency had better result than another . Totally productivity has the positive process and 4% has growthed . So the first hypothesis confirmed that the reasons of the efficiency, ranking and productivity in the insurances parts are similar with DEA and Malmquist approach. The second hypothesis did not confirm that the level of the efficiency has equivalent with the ranking of insurances parts. In this study, targets show that parts of insurance can increase efficiency with decrease inputs, so the third hypothesis has confirmed Manuscript profile -
Open Access Article
4 - Prioritizing Contractors Selection Using DEA-R and AHP in Iranian Oil Pipelines and Telecommunication Company
N.A. Ashoori M.R. Mozaffari -
Open Access Article
5 - A New Method for Allocating Fixed Costs with Undesirable Data: Data Envelopment Analysis Approach
Mohhamad Reza Mozafari Marzieh Ghasemi Farhad Hosseinzadeh Lotfi Mohsen Rostamy-Malkhalifeh Mohammad Hasan Behzadi -
Open Access Article
6 - ارزیابی کارایی واحدهای تصمیم گیری در حضور فاکتورهای منفی و نامطلوب
مهناز مقبولی مهدی عینی فرهاد طاهرتحلیل پوششی داده ها (DEA) یک تکنیک برای ارزیابی واحدهای تصمیم گیری(DMUs) با چندین ورودی و خروجی است. اما یکی از نقصهای مدلهای کلاسیک DEAاین است که در همهی آنها فرض نامنفی و مطلوب بودن برای فاکتورها در نظر گرفته می شود، در حالی که در مسائل واقعی ورودیها و خروجیهای Moreتحلیل پوششی داده ها (DEA) یک تکنیک برای ارزیابی واحدهای تصمیم گیری(DMUs) با چندین ورودی و خروجی است. اما یکی از نقصهای مدلهای کلاسیک DEAاین است که در همهی آنها فرض نامنفی و مطلوب بودن برای فاکتورها در نظر گرفته می شود، در حالی که در مسائل واقعی ورودیها و خروجیهای منفی و نامطلوب نیز وجود دارد. لذا مدلهای استاندارد DEA، اندازه ی کارایی DMUs را به درستی منعکس نمی کنند. در این مقاله با ارائه مدلی کارایی واحدها در حضور فاکتورهای منفی و نامطلوب مورد ارزیابی قرار می گیرد که با یک مثال کاربردی روش پیشنهادی مورد بحث و بررسی قرار میگیرد. Manuscript profile