توسعه مدل تئوری بازی‌های پویا به‌منظور تحلیل رقابت در ساختار بازارهای انحصاری چندجانبه

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، دانشگاه آزاد اسلامی، واحد تهران شمال.

2 استادیار، دانشگاه آزاد اسلامی، واحد تهران شمال.

3 استادیار، مرکز آموزش عالی فنی و مهندسی بوئین زهرا.

چکیده

خصوصی‌سازی باعث افزایش رقابت پویا در بازارهای انحصاری، مانند شرکت‌های ارائه‌دهنده خدمات هوایی با تعداد محدودی عرضه‌کننده و تعداد زیادی مشتری (بازارهای انحصاری چندجانبه) شده است. عرضه‌کنندگان کالا و خدمات در این بازارها با توجه به رفتار رقبا در پی اتخاذ تصمیم در مورد میزان عرضه محصولات و میزان تبلیغات به‌منظور کسب منفعت حداکثری خود هستند. در این پژوهش از نظریه بازی‌ پویا برای تحلیل بازارهای رقابتی چندجانبه و کمک به تعیین مقدار بهینه این دو متغیر تصمیم در دو ساختار اطلاعاتی حلقه باز و بسته استفاده شده است. ضمن بررسی اعتبارسنجی ریاضی مقدار بهینه تولید (عرضه) و هزینه تبلیغات، از مدل ارائه­شده برای تحلیل بازار خدمات شرکت‌های هواپیمایی استفاده شده است. در این پژوهش تأثیر پارامترهایی، مانند مقدار چسبندگی قیمت و نرخ جایگزینی محصول و بازدهی فعالیت‌های تبلیغاتی، بر مقدار عرضه خدمات و تبلیغات برای دستیابی به تعادل پایدار در چنین بازارهایی نشان داده شده است. تحلیل حساسیت پارامترهای مدل پیشنهادی نشان می‌دهد که در استراتژی حلقه باز زمانی که شرکت‌ها در یک بازار الیگوپلی در همه مقاطع رقابت با یکدیگر به هیچ توافق و اصولی پایبند نباشند و فقط طبق قواعد مشخص‌شده در ابتدای رقابت با یکدیگر به تعامل بپردازند، بار مالی زیادی را متحمل می‌شوند که تأثیری منفی بر سودشان خواهد گذاشت.

کلیدواژه‌ها

عنوان مقاله [English]

A Dynamic Game Theory Model for Analyzing Competition in the Oligopoly Markets

نویسندگان [English]

  • Marjan Raoufinia 1
  • Vahid Baradaran 2
  • Reza Shahrjerdi 3
1 Ph.D Student, Islamic Azad University, Tehran North Branch.
2 Assistatnt Professor, Islamic Azad University, Tehran North Branch
3 Assistatnt Professor, Buein Zahra Technical University.
چکیده [English]

Privatization has led to the formation dynamic competition in markets, such as airline service providers with a limited number of suppliers and a large number of customers (oligopoly markets). Suppliers of goods and services in these markets are considering the behavior of competitors to determine the amount of products and advertisements in order to maximize their benefits. This paper investigates a differential oligopoly game model under open loop and close loop structures. By applying mathematical validation of the optimal levels of production (supply) and advertising cost, the proposed model used to analyze the market for airline services, and it is shown that parameters such as sticky price, substitutability among goods and advertising promotional efficiency on supply and advertising are effective in achieving sustainable equilibrium in such markets. Sensitivity analysis of the parameters in the proposed model shows that in open loop strategy when companies in an oligopoly market do not agree any agreement in all stages of competition, they will suffer a lot of financial burden.

کلیدواژه‌ها [English]

  • Oligopoly
  • Open Loop
  • Close Loop
  • Dynamic Game Theory
  • Air Services

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