ساختار بازار و انتقال قیمت در بازار تخم‌مرغ استان فارس، ایران

نوع مقاله : مقاله پژوهشی

نویسنده

استادیار بخش تحقیقات اقتصادی، اجتماعی و ترویجی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش و

چکیده

نوسانات قیمتی، ساختار بازار و انتقال قیمت در بازار تخم‌مرغ رفاه تولیدکنندگان و مصرف کنندگان این محصول را به طور قابل ملاحظه‌ای تحت تأثیر قرار می­دهد. هدف این مطالعه ارزیابی انتقال قیمت و اثرات آن در بازار تخم مرغ در دوره‌ی فروردین سال 1395 تا آذر سال 1400 در استان فارس می‌باشد. ساختار بازار بر اساس شاخص­های معکوس تعداد بنگاه، نسبت‌های تمرکز، هرفیندال-هیرشمن (HHI) و هال-تایدمن (HT) در سطوح پرورش پولت و عمده‌فروشی تخم­ مرغ بررسی و تحلیل شد. افزون بر این انتقال قیمت بین سطوح عمده‌فروشی و خرده­فروشی تخم‌مرغ با استفاده از مدل‌های تصحیح خطا، آتورگرسیو آستانه‌ای و آتورگرسیو آستانه‌ای تکانه‌ای بررسی ­شد. نتایج نشان داد که میانگین درصد تغییرات سالانه قیمت‌های عمده‌فروشی و خرده‌فروشی و همینطور انحراف معیار میانگین قیمت‌های ماهانه در هر سال، دارای روندی افزایشی همراه با تشدید نوسانات در دوره مورد بررسی بوده است. ساختار بازار در سطوح پررش پولت و عمده‌فروشی تخم‌مرغ انحصار چندجانبه و رقابت انحصاری است. علاوه‌براین نتایج تحلیل انتقال نامتقارن قیمت از عمده‌فروشی به خرده‌فروشی را نشان داد. بنابراین به دلیل ساختار غیررقابتی بازار و انتقال نامتقارن قیمت، تولیدکنندگان و مصرف‌کنندگان تخم‌مرغ هزینه‌ی بیشتری را می‌پردازند.

کلیدواژه‌ها

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