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فهرست مقالات

the theory of concentration oligopsony

نویسنده: ؛ ؛

زمستان 1384 - شماره 15 (12 صفحه - از 81 تا 92)

کلیدواژه ها : Cost Efficiency ،Market Power ،Oligopsong Concentration ،Leading Firms

کلید واژه های ماشینی : Market Power ،This ،American Journal Agricultural Economics ،Efficiency ،It ،Review Industrial Organization ،Clarke Davies ،Azzam ،Industry ،Economics ،Concentration ،Azzam Schroeter ،Cournot ،Cost Margins ،Azzam Carmen ،Differentiation ،PP ،Schroeter ،Where ،Herfindahl ،Appendix ،Industrial Organization ،Clarke ،Review ،Davies ،Margins ،Since ،If ،Demsetz ،Its

This paper originates the theory of buyer concentration for a main raw material input for a single processing industry. The oilgopsony concentration is obtained and subsequently decomposed into several factors, affecting indirectly the industry''''s profitability. It is found that the leading firms'''' efficiencies hypothesis is reaffirmed due to variations associated with the marginal productivity differentials. This finding is based on concentration separation approach rather than analyzing the cost-efficiency effect against market power effect from increasing concentration on the industry''''s markup, provided by structural approach of minimum cost function.

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