Evaluation of Interaction Effects of Market Concentration, Profitability, R;D and Advertising in Iran’s Manufacturing Sector

This paper aims to investigate the interaction effects among market concentration, profitability, research and development (R&D), and advertising in Iran’s manufacturing sector. For this purpose, the quarterly data on Iran’s manufacturing sector was gathered in ISIC (International Standard Indus...

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Bibliographic Details
Main Authors: Farhad Khodadad Kashi, Mansour Zarranezhad, reza yousefi
Format: Article
Language:fas
Published: Tarbiat Modares University 2015-11-01
Series:پژوهشهای اقتصادی
Subjects:
Online Access:http://ecor.modares.ac.ir/article-18-1288-en.pdf