http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
현백률 및 1인 가구 비중 변화를 반영한 쌀 감모율 재추정
이두영 ( Dou Young Lee ),김종진 ( Jong-jin Kim ),문동현 ( Donghyun Moon ) 한국식품유통학회 2022 한국식품유통학회 학술대회 Vol.- No.하계
The purpose of this study is to re-estimate the rice loss ratio that predicts rice prices in the harvest season most by considering the changes in the milling ratio and the proportion of single-person households. The rice loss ratio was re-estimated based on an inverse demand function using variables that can affect the rice prices. The simulation result shows that the rice loss ratio is estimated at 2.3% and suggests that the rice loss ratio currently used is likely to underestimate the rice supply situation.
이두영 ( Dou Young Lee ),주재창 ( Jae-chang Ju ) 한국식품유통학회 2021 한국식품유통학회 학술대회 Vol.- No.하계
본 연구는 2003년부터 2021년까지 감귤시장에서 도소매 가격 간 비대칭적 가격전이 현상이 나타나는지를 분석하였다. 감귤 도소매 가격 간 Granger 인과성 분석결과 도매가격의 소매가격에 대한 예측력이 통계적으로 유의한 것으로 나타났다. 비대칭적 가격전이 분석 결과는 도매가격의 소매가격에 대한 양의 비대칭적 가격전이가 나타나는 것으로 통계적으로 유의한 계수 값이 추정되었다. 다만, 계수 값의 차이가 크지 않기 때문에 비대칭성 검정을 기각하지 못하였다. 이러한 결과는 감귤 시장에서 소매업체가 초과이윤 또는 초과위험을 취할 가능성이 존재하는 비대칭적 가격전이를 배제할 수 없음을 시사한다.
이두영 ( Lee Dou-young ),주재창 ( Ju Jae-chang ),김성우 ( Kim Seong-woo ) 한국식품유통학회 2021 食品流通硏究 Vol.38 No.3
The purpose of this study is to investigate asymmetric price transmission(APT) between wholesale and retail prices of tangerine considering structural changes from 2003 to 2021 in Korea. The APT test results show that asymmetry appeared in the tangerine market, but the test results are different depending on hypothesis types and periods. These results suggest that the tangerine market is not perfectly competitive and that the types of APT changed during the sample period.
이두영(Dou Young Lee),하인혜(Inhye Ha) 한국농식품정책학회 2020 농업경영정책연구 Vol.47 No.3
This paper investigated the farming activities of Korean farm households based on their asset utilization performances from 2008 to 2018. We used three financial ratios and set each criteria for classifying farm households: the profitability, the stability, and the growth rate of farm assets. According to the analysis results, the proportion of highly profitable farm households decreased during 2008 to 2018, the proportion of highly stable farm households did not show much change, and the proportion of fast growing farm households increased. In this process, the growth of farm assets was achieved through an increase in nominal value, not through the expansion of farming scale. The analysis on the factors of the financial performances shows that the financial performances varied depending on the characteristics of farm households. Factors such as the age of farm owners, the types of farming, and changes in farmland prices affected the financial performances of farm households, but the stability was relatively less related to the characteristics of farm households compared to the profitability and the growth.