ESTIMATION AND COMPARISON OF THE CONCENTRATION RATIO IN IRANIAN INDUSTRY USING THE LOGNORMAL MODEL

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ABOU NOURI E.; GHOLAMI NAJMEH

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Journal: Journal of Quantitative Economics Year:2008 | Volume:5 | Issue:1 Page(s): 111-134

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Title

ESTIMATION AND COMPARISON OF THE CONCENTRATION RATIO IN IRANIAN INDUSTRY USING THE LOGNORMAL MODEL

Author(s)

ABOU NOURI E. | GHOLAMI NAJMEH | Issue Writer Certificate

Keywords

CONCENTRATION RATIOQ2

LOGNORMALQ3

INDUSTRYQ3

IRANQ2

Abstract

The Concentration of firms in an INDUSTRY is of the interest of economists, business, strategist, and government agencies. The CONCENTRATION RATIO is the percent of the market share owned by the largest few firms in an INDUSTRY. In this research the 5-firm CONCENTRATION RATIO is estimated using the LOGNORMAL model by 2002 statistics and its comparison with that of 1994; corresponding to 2-digit ISIC industrial code, in terms of employment. The results indicate that the CONCENTRATION RATIO in all industries except the INDUSTRY of Radio, Television and Communications have reduced in 2002 relative to that of in 1994. In these years, the Fabric metal (but machineries and instruments) production, Non-metal mineral products, Textiles, Furniture and Other unclassified products have been the most competitive industries, respectively.

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APA: Copy

ABOU NOURI, E., & GHOLAMI, NAJMEH. (2008). ESTIMATION AND COMPARISON OF THE CONCENTRATION RATIO IN IRANIAN INDUSTRY USING THE LOGNORMAL MODEL. JOURNAL OF QUANTITATIVE ECONOMICS (QUARTERLY JOURNAL OF ECONOMICS REVIEW), 5(1), 111-134. SID. https://sid.ir/paper/110797/en

Vancouver: Copy

ABOU NOURI E., GHOLAMI NAJMEH. ESTIMATION AND COMPARISON OF THE CONCENTRATION RATIO IN IRANIAN INDUSTRY USING THE LOGNORMAL MODEL. JOURNAL OF QUANTITATIVE ECONOMICS (QUARTERLY JOURNAL OF ECONOMICS REVIEW)[Internet]. 2008;5(1):111-134. Available from: https://sid.ir/paper/110797/en

IEEE: Copy

E. ABOU NOURI, and NAJMEH GHOLAMI, “ESTIMATION AND COMPARISON OF THE CONCENTRATION RATIO IN IRANIAN INDUSTRY USING THE LOGNORMAL MODEL,” JOURNAL OF QUANTITATIVE ECONOMICS (QUARTERLY JOURNAL OF ECONOMICS REVIEW), vol. 5, no. 1, pp. 111–134, 2008, [Online]. Available: https://sid.ir/paper/110797/en

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