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        1 - 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
      • Open Access Article

        2 - 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
      • Open Access Article

        3 - 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
        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
      • Open Access Article

        4 - تعیین مدل رشد میگوی سفیدغربی(Litopenaeus vannamei) در سیستم پرورشی نیمه متراکم مرکز میگوی گمیشان در استان گلستان
        کریم گلشاهی محمود سقلی میثم صالحی