List of Articles Growth Model

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  1 - Investigating Factors Affecting the Urban Growth Using F’ANP Model (Case Study: Bojnoord City)
  Haleh Hoseinpour Esfandiar Zebardast Hamid Majedi
  10.30495/hoviatshahr.2021.17218
  When cities grow rapidly due to various factors such as changing economic, political, or social roles, they undergo many changes in their spatial structure. This phenomenon, especially in recent decades because of the uncontrolled growth of urban population and increasi More

  When cities grow rapidly due to various factors such as changing economic, political, or social roles, they undergo many changes in their spatial structure. This phenomenon, especially in recent decades because of the uncontrolled growth of urban population and increasing migration to cities, is more visible in the cities of Iran compared with the past. In this process, cities are affected by multifaceted factors of urban growth, and in a short time, natural areas become urban lands. Meanwhile, some factors have a greater impact on the shape and extent of these changesincluding, population growth rate, urban road network, land usage change, government policies, and market trends. The occurrence of urban growth and its consequences have wide dimensions.The increase of medium and large cities and the spatial impact of urban growth on the surrounding lands are some of the important issues in the analysis of current urban issues. There is not any attention to the unplanned growth of these cities on the near horizon, which will lead to the transformation of medium-sized cities into large cities. Therefore, studying urban growth and explaining the factors, affecting help to identify and understand the process of urban development and test existing urban theories. The purpose of this article is to identify these factors and assessing the amount of impact of each of them in the process of urban growth by consideringBojnoord samples that had significant growth in recent years. In this regard, by reviewing the theoretical concepts related to urban growth, the factors affecting urban developmentwere codified, so asto be used as a framework for the analysis of the factors influencing the growth of Bojnoord.Then quantitatively is ratedwith the help of GIS and measurable relevant functions layers. Some of the most important factors are; population density, road density, number of amenities, distance from the town center, the development of single-family homes, faults, slope, etc. Then, from among the various methods of measurement, and quantitative assessment F’ANP keeps all the capabilities of factor analysis because F’ANPmanages to use the capability of factor analysis in converting subjects to specified dimensions and determining the relationship between indicators. Since the relationship between these extracted dimensions is objective, no problems arising from subjective judgments, and there is no effect on the results of research. The results showed that the most important factors in the growth of Bojnoord City were; tendency to single-family homes and large-scale land, the distance from the city center, the net density of the population, accordance with the desire of the city, commercial density, number of amenities, roads and population density respectively. Therefore, "density factor" indicators can be considered as the most important factors in the growth of Bojnourd city. On the other hand, the spatial study of these factors in the map of Bojnourd shows that the greatest concentration of these factors has been in the northwest (towards Golestan) and northeast of the city (towards Mashhad) in Bojnourd, which ultimately leads to the spatial form of the continuous expansion of Bojnourd. Manuscript profile
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  2 - Direct And Indirect Effect Of Human Capital On Iranian Economic Growth
  Esfandiar Jahangard Mehrnoosh Shishvani
  The purpose of this paper is to investigate the role of human capital on economic growth of Iran for the period of 1355 to 13385. To reach our goal we have adopted Lucas endogenous growth model and input-output model and panel data to measure direct and indirect effects More

  The purpose of this paper is to investigate the role of human capital on economic growth of Iran for the period of 1355 to 13385. To reach our goal we have adopted Lucas endogenous growth model and input-output model and panel data to measure direct and indirect effects of human capital on economic growth. Our results demonstrate that the direct and indirect effects of the human capital on economic growth are positive and meaningful, with utility and energy sectors being most affected. JELClassification :J24 ,O4,C67 Manuscript profile
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  3 - Providing an Applicable Model to Calculate the Return & Spillover of Research & Development in Iran's Selected Industries
  Ahmad Jafarnejad Abolfazl Kiani Bakhtiyari Mohammad Hajali
  This research offers proper models to calculate the rate of return   and spillover of research & development in 7 selected industry in Iran  including: chemical industry, petroleum   products,  basic metals, computers and electronics, p More

  This research offers proper models to calculate the rate of return   and spillover of research & development in 7 selected industry in Iran  including: chemical industry, petroleum   products,  basic metals, computers and electronics, pharmaceuticals, automotive, cement, through developing of  Cobb Douglas function based on data derived from 1999 to 2006. The results indicate that in these industries, R & D intensity as an explanatory variable has a high correlation with the growth of Total Factor Productivity (TFP). Total estimated rate of return on R & D and its spillovers are about 13-23% respectively. These rates are much lower than developed countries. Findings also indicate that R & D spillover's effect on productivity growth in these industries are much lower than in developed economies. Therefore, to accelerate the growth of the economy in addition to increase the   R & D expenditures,  the  overextension of effects of the R & D spillover in domestic industries are so important and should seriously follow in development programs of IR.IRAN. Manuscript profile
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  4 - Evaluation of the Influence of the Nucleation Undercooling on Columnar Grain Growth During Al-Cu Alloy Directional Solidification
  F. Shadfar
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  5 - Application of semi-analytic method to compute the moments for solution of logistic model
  MohammadAli Jafari
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  6 - The Compatibility of Parametric Software ‎Reliability Growth Models in PRGA
  Reza Roshani Homayun Motameni Hosein Mohamadi
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  7 - Study of Pollution Abatement Policy by Using Comparative Static Analysis and Endogenous Growth Model: Case Study of Iran Economy
  sharareh majdzadeh tabatabaei ali hosein ostadzad
  Abstract In past decade, paying attention to the environment sustainability has been an important macroeconomic goal in different countries by moving towards a low-carbon economic growth. Therefore, this paper attempts to design and calibrate an endogenous growth model More

  Abstract In past decade, paying attention to the environment sustainability has been an important macroeconomic goal in different countries by moving towards a low-carbon economic growth. Therefore, this paper attempts to design and calibrate an endogenous growth model and use comparative static analysis to study the policies such as promoting green R&D, imposing an eco-tax, subsidizing less polluting factors of input for pollution abatement and then, to control the pollution effects on Iran economy. The results represent that the government can adjust the behavior of agents in order to reach a sustainable economic growth with the help of appropriate policies, and so to choose an optimal decision in the allocation of resources. Manuscript profile
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  8 - The Use of an Endogenous Growth Model to Calculate the Optimal Rate of Value Added Tax with Emphasis on Harmful Products and Waste
  Ahmad Jafari Samimi Saeed Karimi Potanlar Kooroush Azami
  The aim of this paper is to calculate the optimal rate of value added tax with emphasis on harmful products and waste and oil revenues using a model of endogenous growth for Iran’s economy. For this purpose, at first, a generalized growth model for three parts inc More

  The aim of this paper is to calculate the optimal rate of value added tax with emphasis on harmful products and waste and oil revenues using a model of endogenous growth for Iran’s economy. For this purpose, at first, a generalized growth model for three parts including households, firms and government developed. After developing the model and achieving a determiner relationship of the optimal rate of value added tax, using the parameters of Iran’s economy, the model was calibrated and tax optimized values ​​for different scenarios were calculated. The results showed that in the face of declining oil revenues, to remain in a constant situation, optimal rate of value added tax will be increased. More economic growth will increase the tax optimal rate. By increasing social sensitivity to the harmful products and waste, in order to provide optimum conditions for social welfare, the optimal rate of value added tax should be increased.   Manuscript profile
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  9 - برآورد ارتفاع و رشد قطری چند درخت خیابانی در فضای سبز شهری
  زهرا کریمیان
  تخمین رشد درختان شهری، به ویژه ارتفاع درخت در مدیریت منظر شهری، اهمیت بسیاری دارد. هدف از پژوهش حاضر، پیش بینی ارتفاع درخت بر اساس قطر درخت بود. به این منظور 921 درخت از پنج گونه مختلف در پنج ناحیه از شهر مشهد در سال 2014 اندازه‌گیری شدند. درختان مورد ارزیابی در این آزم More

  تخمین رشد درختان شهری، به ویژه ارتفاع درخت در مدیریت منظر شهری، اهمیت بسیاری دارد. هدف از پژوهش حاضر، پیش بینی ارتفاع درخت بر اساس قطر درخت بود. به این منظور 921 درخت از پنج گونه مختلف در پنج ناحیه از شهر مشهد در سال 2014 اندازه‌گیری شدند. درختان مورد ارزیابی در این آزمایش، درخت زبان گنجشک (Fraxinus species)، درخت چنار (Platanus hybrida)، درخت توت سفید (Morus alba)، درخت عرعر (Ailanthus altissima) و درخت اقاقیا (Robinia pseudoacacia)  بودند. تحلیل رگرسیون ارتفاع در برابر قطر مدل‌های مختلفی (خطی، لگاریتمی، نمایی و توانی) را حاصل کرد که می تواند برای تخمین ارتفاع این پنج گونه درختی مورد استفاده قرار بگیرد. توابع لگاریتمی ، توانی و نمایی در درخت زبان گنجشک ( R2 = 0.9و RMSE = 0.74 )، درخت عرعر ( R2 = 0.92و RMSE = 0.44) و درخت چنار  (R2 = 0.72 وRMSE = 0.72 ) به‌ترتیب، برازش مناسبی از داده‌های مربوط به ارتفاع در برابر قطر درختان را ارائه دادند.   Manuscript profile
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  10 - نقش عوامل تولید در رشد اقتصادی ایران با تاکید بر منابع طبیعی و نیروی کار و تخریب محیط زیست
  صمد زارعی سید نعمت اله موسوی
  چکیدههدف از این مطالعه بررسی تأثیر متغیرهای محیط زیست و سرمایه اجتماعی بر رشد اقتصادی در ایران است. بنابراین ، این مطالعه بر اساس مبانی نظری ، علاوه بر این متغیرها ، به بررسی تأثیرات شاخص های مختلف سرمایه انسانی بر رشد اقتصادی ایران طی دوره 73-1373 پرداخته است. متغیرهای More

  چکیدههدف از این مطالعه بررسی تأثیر متغیرهای محیط زیست و سرمایه اجتماعی بر رشد اقتصادی در ایران است. بنابراین ، این مطالعه بر اساس مبانی نظری ، علاوه بر این متغیرها ، به بررسی تأثیرات شاخص های مختلف سرمایه انسانی بر رشد اقتصادی ایران طی دوره 73-1373 پرداخته است. متغیرهای نشان دهنده سرمایه اجتماعی شامل دسترسی به اینترنت و خدمات ارتباطی تلفنی بود. برای سرمایه انسانی ، از میزان سواد ، میزان ثبت نام در دبستان و همچنین تعداد دانش آموزان استفاده شد. همچنین فرض بر این بود که فناوری علاوه بر نیروی کار ، به شکل سرمایه فیزیکی نیز ظاهر می شود. یافته ها نشان داد که سرمایه فیزیکی مهمترین عامل رشد اقتصاد ایران است و عملکرد آن 0.3-0.4 است. اما نقش بسیار کمی توسط متغیرهای سرمایه انسانی و سرمایه زیست محیطی ایفا شده است. نقش سرمایه اجتماعی نیز نسبتاً قابل قبول و مثبت بود.واژه های کلیدی: مدل رشد ، سرمایه اجتماعی ، سرمایه محیطی ، ایرانطبقه بندی JEL: O13 ، O47 ، R1 Manuscript profile
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  11 - Comparative Investigating of Stock Valuation Discount Models with Emphasizing on Type of Industry in Companies Listed in Tehran Stock Exchange
  Mehdi Arabsalehi Alireza Kamali Dehkordi
  10.30495/fed.2023.705594
  Abstract The purpose of this research is to compare the accuracy of models of discounting cash profits, discounting cash flows, residual profits and growth of abnormal profits in explaining the changes in the share prices of companies listed on the Tehran Stock Exchang More

  Abstract The purpose of this research is to compare the accuracy of models of discounting cash profits, discounting cash flows, residual profits and growth of abnormal profits in explaining the changes in the share prices of companies listed on the Tehran Stock Exchange during the years 1391 to 1398, considering the effect of the type of industry on the performance of these models. done. To carry out this research, the statistical sample, which included 105 companies, was divided into two groups: strategic industries and non-strategic industries. Then the aforementioned models were compared in relation to strategic industries and non-strategic industries. Also, the performance of each model was compared between strategic and non-strategic industries. The results of running the models and carrying out T-tests and variance analysis show that in strategic industries, the intrinsic values estimated by the models of discounting cash profits and discounting cash flows have the highest correlation with the stock market value. But in non-strategic industries, the intrinsic values estimated by any of the studied models had no significant correlation with the stock market value. On the other hand, the correlation coefficient of the intrinsic values estimated by all four models except the residual profit model with the stock market value was significantly higher in strategic industries than in non-strategic industries. The results show that in the Tehran Stock Exchange, profit cash items as well as cash flows are accepted more than other accounting information as criteria for buying and selling stocks. Also, the results of the research show that the profits and cash flows of companies active in strategic industries are more stable than in non-strategic industries. Manuscript profile
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  12 - THE SCALING LAW FOR THE DISCRETE KINETIC GROWTH PERCOLATION MODEL
  K. Yamamoto Y. Yamada S. Miyazima
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  13 - Study of the Effects of Human Capital on Economic Growth in Iran
  F. Juzarian
  In this study the effects of human capital on economic growth in the short run and the long run by using Auto-regressive Distributed Lag Model were analyzed. The results showed that human capital had more effect on economic growth in the long run than in the short run. More

  In this study the effects of human capital on economic growth in the short run and the long run by using Auto-regressive Distributed Lag Model were analyzed. The results showed that human capital had more effect on economic growth in the long run than in the short run. This shows that the policy makers should pay more attention to expansion of human capital. Manuscript profile