http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
농지은행 경영회생지원사업 농지환매권의 실물옵션가치 및 조기행사가능성 추정 -Longstaff-Schwartz 방법을 적용하여-
김성섭 ( Seong Sup Kim ),서상택 ( Sang Taek Seo ) 한국축산경영학회 2015 농업경영정책연구 Vol.42 No.2
This study analyzes the vahr of real options for redemptive right provided by Farmland bank business recovery program and mtirnates the possibiIity of early excercise of the right, where the program has h e n an important policy instrument to alleviate fanners`` debt problems since year 2006. The redemptive right can be considered as an American call nption because farmers with the right can repurchase the farmland sold to Farmland bank within a maturity date at any time. Thus, we adopt the Longstaff-Schwartz approach, a simulation method that is suitable for the analysis of American call option. Data were obtained From Chungbuk province. Resulk show that the value of real options for the right is 4,847wanJ rri and the possibility of early exercise is cumulated to 37.5 percent by six years. Qn the other hand, indecisive cases take place up to 32.2 percent of all cases, which leads to 1.477won/ d when the cases are convert~cl to budget loss. Sensitivity analysis includes the change in divided payment ratio, transfer income tax, drift rate, internal fund ratio, and extension of maturity date. The value of real options increases with a transfer income tax and the extension of maturity date, while the possibility of early exercise increases with a transfer income tax, internal fund ratin, and the extension of maturity date. The value of real options is not sensitive to divided payment ratio, anti internal fund ratio, while thc possibility of party exercise increases with divided payment ratio. This implies that Farmland bank can design any instruments to help farmers to join the program and to boost repurchase of the farmland sold, thus making the program more sound.
축구 사회체육지도자들의 디딤발 거리 변화에 따른 인스텝슈팅 동작의 생체역학적 특성분석
김성섭(Sung Sup Kim),배재열(Jae Yeul Bae),노덕선(Duck Sun Rho),김지태(Ji Tae Kim),김민현(Min Hyun Kim) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.54
The purpose of this study was to analyze the biomechanical variables of in-step shooting motion by supporting foot`s distance in soccer. The subjects who were 4 inst ruct`s in soccer and filmed and measured by using MX13 Camera(250Hz, 7camera) of vicon motion system and force plate analyze(ATMI). In case of distance between supporting foot and ball is 20 cm, the 1 phase was quick shooting given owing to its short performance with 0.11±0.01 sec, while the 2 phase gave more power to ball owing to its longest time of performance with 0.217±0.11 sec. In case of distance between supporting foot and ball is 20 cm, the X axis was minimized the distribution of power by small movement with the 1 phase and 2 phase, while Y axis gave the most movement of COM given with the 1 phase and 2 phase, and Z axis also gave the most movement like Y axis given with the 1 phase and 2 phase. The posture of knee and ankle was in 25 cm from the supporting foot, the range of motion with flection and extension was applied biggest. Next was in 15 cm, while knee angle of ankle in 20 cm on step, the range of motion with flexion and extension was less given. Excluding the impact point in 15 cm, the right knee angular velocity was faster as t he parallel distance between the supporting foot and ball was longer, which become gradually faster from the event 1 and event 2, and drastically reduced in event 3. The maximum value of vertical GRF was appeared after 0 .003 sec in the point of foot on step touch the ground, and the vertical GRF was the highest of the maximum value of vertical GRF and of the impact point in the distance of 25 cm from supporting foot and ball.
태권도 선수와 동호인간의 하지 좌 · 우 대칭운동의 운동학적 비교 분석
김성섭(Sung Sup Kim),백승철(Seong Chul Ba다),김지태(Ji Tae Kim) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.54
The purpose of this study was to examine characteristics in two groups by comparatively analyzing the kinemetical variables of bilateral symmetry on lower extremity according to skill level in Taekwondo. The group with experts was selected 9 exhibition members at Yuniversity with over 7 years of career in Taekwondo. The group with non-experts was selected 9 club members at Yuniversity with under 1 year of career in Taekwondo. The bilateral symmetry on lower extremity was limited to Do lryeochagi out of Balchagi(an act of kicking) in Taekwondo. The statistically significant difference was indicated in all variables except the flexion and extension of hip angle in the lower extremity joint angle. The bilateral symmetr y could be known to be excellent. The group with non-experts showed the bigger difference in lower extremity joint angle than the group with experts, and showed the statistically significant difference in variables of required time and peak tiptoe synthetic rate, thereby having been indicated to be short of the bilateral symmetry.
샤플리가치를 이용한 수박 브랜드 통합의 경제적 이익 배분 연구
김성섭 ( Seong Sup Kim ),서상택 ( Sang Taek Seo ) 한국농업경제학회 2012 農業經濟硏究 Vol.53 No.2
This study derives a fair allocation of economic margin resulting from brand unification of watermelon originated in Jincheon County in Chungbuk Province. A concept of Shapley value, a part of co-operative game, is used to derive the allocation ratio between two participants(Deoksan and Saenajincheon), where the shapely value is calculated according to the marginal contribution of each brand to the value of unified brand. One hundred thirty three farmers(sixty seven from Deoksan and sixty six from Saengajincheon) were surveyed with the items of farmer`s preference to brand unification, the expected price of watermelon with unified brand, and the need of criterion for the allocation of economic margin resulting from brand unification. Results show that the fair allocation ratio of economic margin are fifty five percent for Deoksan and forty five percent for Saengajincheon. A sensitivity analysis was performed to check the variation of the fair ratio by changing the expected price of watermelon with unified brand. The ratio with fifty five percent for Deoksan and forty five percent for saengajincheon was robust in spite of price change.
김성섭 ( Seong Sup Kim ),서상택 ( Sang Taek Seo ) 한국농업경제학회 2014 農業經濟硏究 Vol.55 No.4
The objective of this study is to evaluate the value of flexibility for cropping system with greenhouse facilities that farmers can take contingent on market condition. A concept of switch option, a kind of Real Options(RO) approach, is adopted to evaluate the option value of flexible cropping system. For the simplicity, region is limited to Chungbuk province and crops for cropping systems are limited to watermelon and melon. Prices of both crops are assumed as stochastic variables and proved to follow mean-reverting process. Results show that farmers choose crops based on relative prices for the first crop. On the other hand, watermelon is hardly chosen for the second crop because the price of watermelon far below than that of melon. The value of flexibility, defined as the difference of the value of flexible cropping system and the value of inflexible cropping system, is 1,583 thousand won during three business years. Sensitivity analysis show that the flexibility value increases with melon production and volatility of melon and decreases with production cost of melon. The results imply that the value of flexibility for cropping system should be reflected in the investment analysis of fruit vegetable farming with greenhouse facilities.
수박공선출하 확대요인 분석 -충북지역 수박 재배농가를 대상으로
김성섭 ( Seong Sup Kim ),서상택 ( Sang Taek Seo ) 한국농업경제학회 2013 農業經濟硏究 Vol.54 No.2
This study analyzes the factors that effectively affect the expansion of cooperative shipping of watermelon in Chungbuk province. One hundred fourteen farmers were surveyed with the items of farmers′ satisfaction, recognition of necessity for cooperative shipping, importance of expansion method, factors of hindrance for cooperative shipping, and willingness to join the cooperative shipping. Ordered logit model was adopted for the econometric analysis. Paired sample t-test and independent sample t-test were also adopted to test statistical significance of the results. The re-sults show that farmers′ satisfaction for cooperative shipping is influenced by the benefits of in-come obtained from cooperative shipping and the use of facilities available. Watermelon farms have a demand for establishing an efficient marketing system for the expansion of cooperative shipping. To meet this demand they need to give more reliability to regional agricultural coopera-tives through the supply of contractual quantity. In addition, regional agricultural cooperatives needs to handle the entire amount of contractual quantity through cooperative shipping in the long term perspective.