نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشگاه تبریز-استادیار
2 دانشجوی کارشناسی ارشد اقتصاد کشاورزی، دانشگاه تبریز
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
In this research, price transmission between wholesale and retail levels of two products, potato and onion has been studied. The data of wholesale and retail prices of Kurdistan province from 1386:12 to 1392:3 were used. According to the results of the ADF unit-root test series retail and wholesale prices of two products were integrated of order 1 and the Johansson cointegration test results indicated the prices for products were two series cointegrated. To examine the causal relationship between retail and wholesale prices of products, Toda –Yamamoto (1995) test was used and the results indicated that there was a one-way causal relationship from wholesale to retail for potato and onion. Hansen(1999)’s Sup-F test was carried out to examine the existing of nonlinear price adjustment that the result indicated that there were nonlinear price adjustment for potato and onion. Therefore, univariate TAR, M-TAR and LSTAR models were used. The results indicated asymmetry price transmission in potato and onion market.
کلیدواژهها [English]
Yavari, F. (2012). Vertical price transmission and non-linear price adjustments in the beef market of East Azerbaijan province, Master’s thesis, University of Tabriz. (In Farsi)