Determinants of Profitability in Oligopoly and Oligopsony Markets

This paper provides a theoretical model in which the firms within aprocessing industry behave in an oligopolistic and oligopsonisticmarket simultaneously. The model developed yields an equation forprofit margin influenced by determinants of marginal processing costas well as distortions in both mark...

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Main Authors: Majid Ahmadian, Mohamd ali Motafaker Azad
Format: Article
Language:fas
Published: پژوهشگاه حوزه و دانشگاه 2005-09-01
Series:جستارهای اقتصادی
Subjects:
Online Access:https://iee.rihu.ac.ir/article_314_fecf20ecf0ee1eebb1d3cd08d03ec30f.pdf
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author Majid Ahmadian
Mohamd ali Motafaker Azad
author_facet Majid Ahmadian
Mohamd ali Motafaker Azad
author_sort Majid Ahmadian
collection DOAJ
description This paper provides a theoretical model in which the firms within aprocessing industry behave in an oligopolistic and oligopsonisticmarket simultaneously. The model developed yields an equation forprofit margin influenced by determinants of marginal processing costas well as distortions in both markets. By pooled cross section andtime series data, the equation is estimated for eleven sugar factoriesinvolved in Tehran Exchange Market over the period of ١٩٩٦-٢٠٠٣.Applications for both markets indicate that with an increase in boththe input share and output share, it causes an increase in the profitmargin; however, it reduces due to increasing in wages fuel andenergy costs. With competitive oligopsonistic market, the collusiondegree initiated by Clarke and Davies (١٩٨٢) in oligoppolistic marketis estimated. It turns out that the collusion parameter is lower andnegligible since price elasticity of demand is a faction for the quasiprice elasticity, but by considering only quasi price demand elasticity,the degree of collusion is estimated to be higher.
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spelling doaj.art-deebd7071f124f4ba9a2973afe22bc0c2024-02-27T06:52:47Zfasپژوهشگاه حوزه و دانشگاهجستارهای اقتصادی1735-33002588-58122005-09-01241133314Determinants of Profitability in Oligopoly and Oligopsony MarketsMajid Ahmadian0Mohamd ali Motafaker Azad1Faculty Member of Tehran UniversityFaculty Member of Tabriz UniversityThis paper provides a theoretical model in which the firms within aprocessing industry behave in an oligopolistic and oligopsonisticmarket simultaneously. The model developed yields an equation forprofit margin influenced by determinants of marginal processing costas well as distortions in both markets. By pooled cross section andtime series data, the equation is estimated for eleven sugar factoriesinvolved in Tehran Exchange Market over the period of ١٩٩٦-٢٠٠٣.Applications for both markets indicate that with an increase in boththe input share and output share, it causes an increase in the profitmargin; however, it reduces due to increasing in wages fuel andenergy costs. With competitive oligopsonistic market, the collusiondegree initiated by Clarke and Davies (١٩٨٢) in oligoppolistic marketis estimated. It turns out that the collusion parameter is lower andnegligible since price elasticity of demand is a faction for the quasiprice elasticity, but by considering only quasi price demand elasticity,the degree of collusion is estimated to be higher.https://iee.rihu.ac.ir/article_314_fecf20ecf0ee1eebb1d3cd08d03ec30f.pdfcollusion degreemarginal processing costprofit marginoligopolyoligopsony
spellingShingle Majid Ahmadian
Mohamd ali Motafaker Azad
Determinants of Profitability in Oligopoly and Oligopsony Markets
جستارهای اقتصادی
collusion degree
marginal processing cost
profit margin
oligopoly
oligopsony
title Determinants of Profitability in Oligopoly and Oligopsony Markets
title_full Determinants of Profitability in Oligopoly and Oligopsony Markets
title_fullStr Determinants of Profitability in Oligopoly and Oligopsony Markets
title_full_unstemmed Determinants of Profitability in Oligopoly and Oligopsony Markets
title_short Determinants of Profitability in Oligopoly and Oligopsony Markets
title_sort determinants of profitability in oligopoly and oligopsony markets
topic collusion degree
marginal processing cost
profit margin
oligopoly
oligopsony
url https://iee.rihu.ac.ir/article_314_fecf20ecf0ee1eebb1d3cd08d03ec30f.pdf
work_keys_str_mv AT majidahmadian determinantsofprofitabilityinoligopolyandoligopsonymarkets
AT mohamdalimotafakerazad determinantsofprofitabilityinoligopolyandoligopsonymarkets