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이석일 ( Seok Il Lee ),김선웅 ( Seon Woong Kim ),윤병삼 ( Byung Sam Yoon ) 한국축산경영학회 2015 농업경영정책연구 Vol.42 No.2
The primary objective of the studv is to evaluate the performance of broiler pricc forecasts. The KREI (Korea Rural Economic Lnstitute) forecasts are evaIuate1 against three autoregressive time-series models; autoregressive (AR) mode!, seasonal AR model, and AR model with rnonthlv dummies. Resulh show that KREI broiler price forecasts are superior to forecasts generated by the purr AR model, but inferior to forecasts generated by the AIR model which considers the monthly effect. The results also suggest that the KREP forecasts can Lw further improved by combining the hme-series forecasts.
축산물의 산지와 소비지간 가격전달의 비대칭성에 대한 검정
이석일(Seok-Il Lee),윤병삼(Byung-Sam Yoon) 한국농식품정책학회 2016 농업경영정책연구 Vol.43 No.1
The primary objective of this study is to test for asymmetric price transmission between the farm and retail levels of the marketing channel in livestock markets. Daily data for beef, pork and chicken over the period from January 2011 to September 2015 were employed. The conventional Houck model and the asymmetric error correction model (ECM) were selectively used to test for asymmetry in farm-to-retail price transmission. Contrary to general belief or concern among consumers and policy makers, the empirical results suggest that the farm-retail price transmission process for beef, pork and chicken is symmetric.