• 한국산학기술학회논문지
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• 제22권1호
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• pp.313-320
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• 2021

본 연구는 경남 밀양 깻잎 농업의 수급 및 가격 모형을 개발하고 정책 실험을 통해 밀양 깻잎 생산 농가의 총 소득을 극대화하는 적정 생산 규모를 전망한다. 분석 자료는 밀양 깻잎 농업의 총 소득과 관련된 22개년 시계열 자료(1996~2017년)가 이용되었다. 분석 방법은 수요 함수와 평균 비용 함수 추정을 통하여 적정 생산량과 가격을 산출하고 이를 통해 적정 소득을 도출하였다. 또한, 시나리오 분석을 통하여 2030년까지 예상되는 밀양 깻잎 최적 생산량과 이에 해당하는 판매 가격, 총 수입, 총 비용, 총 소득을 전망하였다. 밀양 깻잎 생산 농가 전체를 대상으로 총 소득을 극대화하기 위해서는 2017년에 7천 톤 규모인 밀양 깻잎 생산량을 2030년까지 10~12.5천 톤으로 증가시킬 필요가 있다. 이 경우 밀양 깻잎 농업에 귀속되는 총 소득은 133~213억 원 수준으로 전망된다. 앞으로 밀양 깻잎 생산자 단체는 본 연구에서 제시한 적정 생산 규모를 유지하여 농가에게 귀속하는 총 소득을 증대시키도록 노력해야 할 것이다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.2129_2131
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• 2009

Since Jan. 2004, the Ministry of Construction and Transportation has partly introduced estimation system of historical cost data in order to reflect result cost of construction market to cost estimation for public construction. It is expected that the purpose of the introduction would be evaluated considering the long-term development of domestic construction industry. In article 3, paragraph 4 of the planning criteria of estimated cost of financial regulation related to government contract rule, the profit estimated by historical cost data indicates sales profit and it is calculated by multiplying the sum of direct cost, indirect cost and general overhead by rate of profit. Finally, it is said that rate of profit cannot exceeds 10%. However, there are a lot of constructions for electronic equipment in the electronic construction and the proportion of government furnished material is very high, not like engineering works or constructions. Therefore, as the proportion of material cost over direct cost is relatively lower, if current rate of profit (10%) is applied, there would be a wide difference of cost in the items of profit under the estimation system of historical cost data. This paper was conducted to examine estimation methods of the items of profit under the estimation system of historical cost data and suggest reasonable applications.

• 한국건설관리학회논문집
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• 제16권4호
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• pp.50-59
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• 2015

한국 건설 기업들의 해외 진출이 기하급수적으로 늘어나고 있지만 프로젝트를 수행함에 있어 사업의 수익률은 대기업과 경험이 부족한 중소기업을 비교하였을 때 큰 차이가 나타난다(대기업 5건 중 1건 적자, 중소기업 3건 중 1건 적자 공사). 또한 경험이 부족한 중소, 중견 기업들, 특히 하도급 업체에게는 프로젝트 참여시 사업의 적절성을 판단하기란 어려우며 그에 따른 수익률 또한 예측하기 어렵다. 이에 본 연구는 중소/중견 업체, 특히 하도급 업체 관점에서 해외 건설공사 진출 시 수익률에 영향을 미치는 영향인자를 도출하기 위해 1965년부터 시행된 8,637건의 해외건설 준공데이터 및 문헌고찰 기반으로 수익률에 영향을 미치는 10개 인자를 도출 후 다중회귀분석을 통해 영향인자 간 가중치를 도출하였다. 이를 기반으로 사례기반 추론 기법을 이용하여 수익률 예측 모델을 개발하였으며, Type1 &Type2 error 분석을 통해 검증 결과 11%의 오차율을 보였다. 이러한 수익성 예측 모델을 활용하여 국내 건설 하도급업체들은 해외건설공사 진출 시 해당 프로젝트의 수익성 분포를 사전에 확인하여 양질의 프로젝트를 선별하고, 사업 참여의 의사결정에 중요한 참고자료가 될 것을 기대한다.

• 한국콘텐츠학회논문지
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• 제21권6호
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• pp.588-597
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• 2021

우리나라의 경우 일반보험의 부가보험료를 구성하는 요소인 보험회사의 이익을 산출하는 기준에 대해 특별히 정하고 있지 않으며, 손해보험회사들은 대부분 2~5% 수준을 보험료에 반영하고 있다. 보험상품의 특성상 가격결정의 투명성이 요구되고 있지만, 국내 손해보험산업에 있어서 보험가격 요소별 결정방법론에 대한 기준이나 실증연구는 미흡한 실정이다. 본 연구에서는 산출기준이나 실증연구가 미흡한 일반보험의 상품별 예정이익률 산출 방법을 제시하고자 한다. 일반보험의 예정이익률을 산출하는 기준은 손익변동성에 따른 손실 리스크에 대비하여 보험회사가 확보해야 하는 자본에 대한 주주요구수익을 보험료에 대한 비율로 반영하는 것이다. 주주는 보험 운영과 관련된 리스크를 감내하기 때문에 이에 대한 보상을 받아야 하며, 이러한 주주입장에서의 기회비용을 보험료에 반영하려는 것이다. 본 연구에서는 상품별로 보험리스크에 대비하기 위해 회사가 적립해야 하는 자본량을 산출하였으며, 보험리스크는 보험영업 손익의 변동성으로 정의하였다. 그리고 보험리스크는 DFA(Dynamic Financial Analysis; 동적재무분석) 방법론에 의한 stochastic simulation을 활용하여 산출하였다. 최종적으로 25개 상품에 대한 예정이익률을 산출하여 현재 국내 일반보험의 예정이익률과 어떤 차이가 있는지를 실증적으로 분석하였다.

• 한국병원경영학회지
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• 제16권4호
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• pp.35-66
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• 2011

This study analyzed efficiency by utilizing DEA analytical technique centering on materials for 2009 of 20 major university hospitals in capital area. Input variables were utilized professor & full-time doctor, resident, nurse & number of bed hospitals. Output variables were analyzed by dividing number of annual outpatients & number of annual inpatients, and annually total outpatient profit & inpatient profit into a model of the standard for number of patients and the standard for medical profit. DEA analysis was elicited efficiency score by applying CCR, BCC, BFG, scale profit, and SE model. Through t-test after eliciting efficiency score, the implications were suggested by comparing efficiency between DMU in Seoul and DMU in capital area, by comparing between high-class general hospitals and general hospitals, and by comparing between high-class general hospitals in Seoul and 5 big hospitals. As a result of analysis, the major university hospitals in capital area showed high efficiency as a whole close to "1," but indicated low efficiency relatively in CCR field. Thus, the expansion in scale within capital area was indicated to reach the limit. Second, in a model of analyzing the standard for number of patients, the medical institutions, which are being operated efficiently, were indicated to be 10 DMUs. In the standard for medical profit, 12 DMUs were analyzed to be operated efficiently. Third, the efficiency in general hospital was higher than high-class general hospital. Thus, the efficiency of operation was indicated to be more important than scale. Also, large high-class hospitals(big 5) where are located in downtown Seoul showed the higher efficiency than other general high-class general hospitals, but were indicating very low efficiency in some DMUs. Fourth, as a result of generalizing and evaluating the number of patients and the medical profit, the efficient DMU was indicated to be more when analyzing on the basis of medical profit than the standard for number of patients. Thus, major university hospitals in capital area were indicated to make more effort for section in medical profit. Based on the analytical results of efficiency, a strategy for reinforcing efficiency in inefficient DMU was indicated to be needed a strategy of creating customers for promoting number of patients and a strategy for making operation efficient for increasing profitability.

• 아태비즈니스연구
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• 제9권4호
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• pp.49-65
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• 2018

This paper illustrates the competition between the mobile pay and credit card systems by utilizing the theory of two-sided markets. Two firms, as platforms, maximize the profit collecting fees from consumers on one side and from retailers on the other side. Consumers pay to buy goods and services with mobile pay, credit card, or cash. The basic model is one that each platform maximizes its profit. We show that the fees for credit card holders and retailers are higher than the respective costs. The fee for retailers of the mobile payment is higher than its cost, while the buyer's fee may be higher or lower than its cost. Applied model is the one that employs the delegation game model. The total profit of the mobile pay system is composed of its profit and the weighted demand for the mobile pay. It is shown that buyers' fee under the applied model is lower than that under the basic model, resulting in an increase of the demand for the mobile pay. The fee for the retailers rises, albeit the sum of fees for the buyers and retailers falls. The profit for the mobile pay system is increased, while that for the credit card company stays the same.

• 디지털융복합연구
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• 제14권5호
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• pp.39-46
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• 2016

사회서비스 분야는 이용자의 욕구 확대에 따라 사회서비스 공급체계 또한 급속한 변화를 보이고 있다. 전통적인 사회복지에서 서비스는 공공과 민간에 의해 제공된다면, 사회서비스는 영리와 비영리라는 새로운 구조가 혼합된다. 하지만, 이와 관련된 기초연구는 충분하지만 공급유형별 성과관련 연구는 매우 미약하다. 이러한 점을 고려하여, 사회서비스의 영리 조직과 비영리 조직의 성과평가에 대한 비교를 시도하였다. 관련 자료는 보건사회연구원의 사회서비스 수요 공급실태조사에 활용된 데이터를 사용하였으며, 대상은 가사간병서비스와 노인돌봄서비스로 한정을 하였다. 성과평가를 위한 방식은 재무관점의 가장 초보단계인 총수익에서 총지출을 제외한 순수익을 활용하였으며, 영리와 비영리조직에 대한 차이를 검증하였다. 사회서비스 조직의 지출의 연구결과를 보면, 영리조직은 인건비, 운영비, 시설비, 소모품비 등에서 비영리조직보다 지출 비용이 높게 나타났으며, 다만 사업비 부분과 기타 부분은 비영리 조직이 영리조직보다 높게 제시되었다. 이와 같은 점을 고려하면, 향후 전달체계의 변화와 함께 영리와 비영리의 공정한 경쟁을 위하여 영리조직을 위한 추가적인 지원방안이 필요함을 확인할 수 있었다.

• 한국병원경영학회지
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• 제6권2호
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• pp.138-155
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• 2001

This study was designed to find out the factors which influence on the financial performance of the hospital. Out of 32 provincial hospitals which were established by the government, 10 hospitals were selected as sample hospitals. Ten hospitals were divided into two groups(5 hospitals each), one of which was profit-making and the other loss-making. The criteria in selecting profit or loss-making hospitals was net profit to total revenue. The major finding of the study was as follows; 1. Whether or not a hospital had specialized in certain departments was proved to be the major factor influencing on the financial performance. Three out of five profit-making hospitals could harvest following results by operating specific departments. (1) Man powers needed for the operation of specific departments were 14.6 persons per 100 bed, which was only 1/7 of the general hospital. (2) The number of doctors has not increased in proportion to the increase of the number of beds. (3) Ratio of total revenue to MD.'s payroll expenses of the profit-making hospitals was 75.0% higher than the loss-making hospitals. (4) The average length of stay of specific department was very long(388.1 days). However, the specific departments were found to have contributed much to the financial performance because the occupancy rate of such departments was very high(94.5%). 2. The headcount per 100 bed of the profit-making hospitals was 23.9 persons(24.0%) less than the loss-making hospitals and the ratio of payroll expenses to total revenue 15.1% less. 3. Averagel revenue per specialist of the profit-making hospitals was 100 million(25.1%) more than loss-making hospitals and the ratio of total revenue to MD's payroll expenses of profit-making hospital was 75.0% higher. 4. Profit-making hospitals have introduced new systems or renovation in 36 fields, such as incentive payment system, utilization of contracted man powers, change of the payroll structure of the nurses, specialization in certain departments, etc; however, loss-making hospitals introduced only 25 new systems or renovations. These kind of renovation could not be achieved without the cooperation of the labor union and the strong will of the top management. Therefore, it could be said that the labor union of the profit-making hospitals seems to have been very cooperative compared with that of loss-making hospitals.

• 플랜트 저널
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• 제5권1호
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• pp.40-44
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• 2009

This study presents an operational technique to maximize the profit of a cogeneration power plant under cost-based pool power market. In benefit side energy sale profit, heat sale profit, and supplementary fund profit for electric power industry are included and the changeable cost was considered in cost side. The profit of a cogeneration power plant is varied enormously by the operation conditions, and constraint conditions. The result of this case study can be used as a reference to a cogeneration power plant under the same power trading system.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권11호
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• pp.4405-4418
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• 2015

Different network provides different service. To maximize the profit, heterogeneous networks form a whole, which may either compete or cooperate with each other. In this paper, the healthcare monitor network architecture is introduced to build the competitive and cooperative mechanisms of heterogeneous networks which contain three networks, namely, cellular network, WLAN and WMAN. This paper considers the natural growth rate of the network with competitive and cooperative effects. Then, the stability of the proposed model and its equilibrium points are analyzed by the ordinary differential principle. Finally, simulation results show that the natural growth rate cannot increase the profit of the network, but effective cooperative among heterogeneous networks can increase the profit of each network, and competitive may decrease the profit of each network.