بررسی ارتباط متقابل بین شدت تبلیغات، شدت تحقیقات و پویایی رقابت در صنایع ایران

نوع مقاله: علمی - پژوهشی

نویسنده

استادیار اقتصاد دانشکده صنایع و مدیریت دانشگاه شاهرود

چکیده

هدف اصلی این مطالعه بررسی ارتباط متقابل بین متغیرهای ساختاری و رفتاری بازار در 140 کد چهاررقمی بخش صنعت ایران طی سال­های 1374-1388 می­باشد. برای این منظور از سیستم معادلات شامل پویایی رقابت، شدت تبلیغات و شدت تحقیقات استفاده شده و سیستم معادلات الگو با استفاده از روش تخمین معادلات رگرسیون به ظاهر نامرتبط در داده­های تابلویی تخمین زده شده است. نتایج حاصل از تخمین مدل دلالت بر این دارد که متغیر شدت تحقیقات و شدت تبلیغات دارای تأثیر مثبت و معنی­دار بر پویایی رقابت در بخش صنعت ایران بوده و در این میان اثر متغیر شدت تبلیغات بر پویایی رقابت، در مقایسه با متغیر شدت تحقیقات بیشتر است. همچنین مقدار وقفه­دار متغیر پویایی رقابت نیز اثر مثبت و معنی­داری بر پویایی رقابت در صنایع ایران داشته است. 

کلیدواژه‌ها


عنوان مقاله [English]

Advertising, Researching and the Dynamic of Competition in the Iranian Industries: Seemingly Unrelated Regression Approach

نویسنده [English]

  • ali dehgani
چکیده [English]

This paper focuses on the relationship between structural variables and market behavior for a sample of 141 four-digit industries during 1374-1388 in Iran. For this purpose, the system of equations consists of the Dynamics of Competition, Researching intensity and Advertising intensity applied.  The Seemingly Unrelated Regression Estimation (SURE) method in the Pane Data is used to estimate the parameters of the models. 
   Results show that Researching intensity and Advertising intensity have a positive and significant effect on the Dynamics of Competition in the Iranian industries and the effect of Advertising intensity is more than Researching intensity. Moreover the interrupted value of the dynamics of competition is interrupted for a significant positive effect on the dynamics of competition in the industries in Iran that represent the dynamic effects of this variable in Iran. According to industry research and Trying to marketing and selling industrial products is helping to enhancing competitiveness in the Iranian industries.        

کلیدواژه‌ها [English]

  • Researching
  • Advertising
  • The Dynamic of Competition
  • Panel Data Seemingly Unrelated Regression

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