국제 유가에 대한 국내 휘발유의 가격 조정 분석: 분위수 자기회귀시차분포 모형을 사용하여

김형건 한국환경경제학회 2022 자원·환경경제연구 Vol.31 No.4

This study empirically analyzes that the asymmetry of domestic gasoline price adjustment to the crude oil price changes can vary depending on the level of gasoline price using quantile autoregressive distributed lag model. The data used are the weekly average Dubai price, domestic gasoline price at refiners and gas stations from the first week of May 2008 to the second week of October 2022. The study estimates three price transmission channels: changes in gas station gasoline prices in response to changes in Dubai oil prices, changes in refiners gasoline prices in response to changes in Dubai oil prices, and changes in gas station prices relative to refiners gasoline prices. As a result, the price adjustment of refiner's gasoline price with respect to Dubai oil price appears asymmetrically across all quantiles of gasoline price, whereas the adjustment of gas station prices for Dubai oil price and refiner's gasoline price tend to be more asymmetric as the quantile of gasoline price increases. Such a result is presumed to be due to changes in the inventory cost of gas stations. When the burden of inventory cost is high, gas stations have an incentive to more actively pass the increased buying price on their selling price. 동 연구는 휘발유 가격 수준에 따른 국제 유가에 대한 국내 가격 조정의 비대칭성을 분위수 자기회귀시차분포 모형을 사용하여 확인한다. 추정에 사용된 자료는 2008년 5월 첫 번째 주부터 2022년 10월 두 번째 주까지의 주간 평균 두바이유가, 정유사 휘발유가, 주유소 휘발유가이다. 추정은 두바이유가에 대한 주유소 휘발유 가격, 두바이유가에 대한 정유사 휘발유 가격, 정유사 휘발유 가격에 대한 주유소 가격의 변화, 세 가지에 대해 이루어졌다. 추정 결과, 두바이유가에 대한 정유사 휘발유 가격의 조정은 휘발유 가격의 모든 분위에 걸쳐 비대칭적으로 나타난 반면 두바이유가와 정유사 휘발유 가격에 대한 주유소 가격의 조정은 휘발유 가격의 분위수가 높을수록 비대칭적으로 나타났다. 이와 같은 결과는 휘발유 가격 변화에 따른 주유소의 재고 비용 변화에 기인하는 것으로 추측된다. 재고 비용에 대한 부담이 높을수록 주유소에게는 상승한 휘발유의 매입가격을 보다 적극적으로 판매가격에 전가하고자 하는 유인이 있다.

數種 韓國食餌給與에 依한 白鼠의 體成分 變動에 對한 實驗的 硏究

金炯健 首都醫科大學 1966 수도 의대 잡지 Vol.3 No.1

음식 배달 및 1인 가구가 생활 폐기물 발생량에 미치는 영향: 코로나-19 시기를 중심으로

김형건,Kim, Hyung-Gun 강원대학교 경영경제연구소 2022 Asia-Pacific Journal of Business Vol.13 No.3

Purpose - This study empirically analyzes the effects of food delivery service use frequency and the proportion of single-person households on the generation of MSW (Municipal Solid Waste). Additionally, the study analyzes MSW increase during the COVID-19 period. Design/methodology/approach - The study uses annual information on MSW and related characteristics of 228 Si, Gun, and Gu, which are administrative districts of Korea, from 2015 to 2020. Panel fixed effect model is employed for estimations. Findings - The study finds that food delivery and single-person household have significant effects only on recyclable and standard garbage bag MSW, respectively, not on all produce types of MSW. Additionally, it is estimated that, during the COVID-19 period, the increasing effect of food delivery is intensified while single-person households diminish its increasing effect. Lastly, the study confirms that the marginal effect on the increasing effect of MSW generation by the number of household members. Research implications or Originality - The estimated results are expected to provide useful information for the related policies. In particular, it is necessary to focus more on recyclable MSW concerning the developing delivery culture, and regarding changes in the family structure, focus more on the number of household members than single-person households.

유방암 유전자 特許를 둘러싼 분쟁에 대한 소고

김형건 한국재산법학회 2009 한국재산법학회 학술대회 자료집 Vol.2009 No.3

週期性麻痺性疾患

金炯健 대한외과학회 1962 Annals of Surgical Treatment and Research(ASRT) Vol.4 No.10

水泳一스트레스에 의한 血裝 Corticosterone 증가에 미치는 水溫, Clonidine 및 Bromazepam의 영향

金炯健,申炅浩,金庚旭,全普權,千然淑 고려대학교 의과대학 1989 고려대 의대 잡지 Vol.26 No.2

Recently, many reports suggested that warm water swim-stress induces an opioid-analgesia, while cold water swim-stress produces a nonopioid form of analgesia. And Hong et. al. reported that the increase of plasma corticosterone (p-CS) in response to swim-stress at 20℃(20-SS) was significantly attenuated by swim-stress at 4℃ (4-SS) was affected by CL but markedly suppressed by BA. In this paper, the influences of CL-500㎍/㎏ and BA-5㎎/㎏ on the change of p-CS in response to 20-SS or 4-SS were studied in male mice comparing with those of morphine and naloxone. The 20-SS induced increase of p-CS was significantly inhibited by CL and BA, respectively, while the 4-SS induced increase was not affected by CL but markedly inhibited by BA. And the 20-SS or 4-SS induced increase of p-CS was slightly inhibited by naloxone,2mg/kg but not affected by morphine, 2㎎/㎏. The increase of p-SS in response to three times repeated 20-SS or 4-SS with one hour interval was little affected by B-pretreatment, but CL-pretreatment slightly attenuated the 4-SS induced increase of p-CS and significantly inhibited the 20-SS induced increase. The increase of p-CS induced by the repeated SS was little affected by the treatment of BA 30 minutes before the last SS, but the such treatment of CL slightly attenuated the p-CS increase induced by the repeated 20-SS but significantly enhanced the p-CS increase by the repeated the repeated 4-SS. And during the experiment of repeated 4-SS, 55.6% of mice pretreated with BA were drowned. The results demonstrate that there are some pharmacological differences between the mechanisms of hypothalamo-adenohypophysial responses to 20-SS and 4-SS, respectively.

구두-A-04 : 교호집성에서 낙엽송의 최적 접착 조건 구명

김형건,오정권,임진아,김현배,박천영,방성준,김철기,이전제 韓國木材工學會 2013 한국목재공학회 학술발표논문집 Vol.2013 No.-

數種 韓國食餌給與에 依한 白鼠의 體成分 變動에 對한 實驗的 硏究

金炯健 고려대학교 의과대학 1966 고려대 의대 잡지 Vol.3 No.1

Ⅰ. A Study on Adult Rats. In order to observe the variation of some of the constituents of the blood, liver and small intestine of rats by feeding Korean diets. albino rats of a pure strain, weighing 240g - 380g were used for experiment. The animals were divided into three groups; the high protein diet group (mixture of rice and fish flour, 20 % protein), the low protein diet group (rice, 5 % protein), and the standard diet group (control diet, 16 % protein). They were maintained with the specified diets being sacrificed on the 15th, 30th, and 60th day of feeding. In the blood, total nitrogen, cholesterol(total, free, and ester form), A/G ratio of protein, GOT, GPT, alkaline phosphatase, calcium, inorganic phosphorus and hemoglobin were measured. The amount of nitrogen in the small intestine and the liver, and of cholesterol in the latter were also determined. The results obtained are summarized as follows: 1. The total nitrogen content of the serum was neither significantly different in any diet group nor on the duration of feeding. The nitrogen content of the liver was, however, increased after feeding for a long period. In this case, the high protein diet group showed the higher content than the low protein group. The nitrogen content of the small intestine in the high protein group was less than the low protein group. 2. The cholesterol level of the liver in the low protein diet group was usually higher than the high protein group, especially in the male group. 3. The hemoglobin value of the low protein diet group decreased by feeding, while that of the high protein group increased. The A/G ratio of serum protein in the high protein group gradually increased by feeding. 4. The GOT activity in the serum of the high protein diet group was higher than the case of low protein group. 5. The serum calcium value of the low protein diet group was slightly higher than the high protein group. None of the group showed a significant change on the inorganic phosphorus value in blood. Ⅱ. A Study on Weanling Rats. Albino male weanling rats of a pure strain, weighing 40 g-75 g, were used as experimental animals. The animals were divied into three groups as stated alone. The diets were identically the same with those used on the part Ⅰ experiment. The animals were maintained with the specified diets being sacrificed on the 15th, 30th, and 60th day of feeding. The results can be summarized as follows: 1. The total nitrogen content of the serum was not significantly different in any of three groups. The nitrogen value of the liver of the high protein diet group was always higher than the other two groups, while that of the low protein group was higher than the other groups in the intestine. 2. The total cholesterol level of the liver in the low protein group was higher than the other groups. 3. The hemoglobin value of high protein group was higher than the low protein group.

흰쥐 해마와 일차시신경중추에서 Adrenergic α2 수용체 작용약물들의 단가아민 대사에 대한 작용 비교

김형건,이응천,백기청,임명호,김현우,강봉진 대한정신약물학회 2004 대한정신약물학회지 Vol.15 No.3

K-MBR(Kumho-Membrane Bioreactor) 공정에서의 유기물 및 질소, 인 제거 특성

김형건,장해남,이대성,황병호 대한환경공학회 2005 대한환경공학회 학술발표논문집 Vol.2005 No.12