• 대한교통학회지
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• 제33권3호
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• pp.247-255
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• 2015

신규 고속도로가 개통될 때는 통상 신규 노선은 기존의 노선과 연계 또는 경합의 관계를 가지게 된다. 이러한 네트워크의 변화는 신규노선 주변의 다른 노선에서도 통행량 변화를 가져올 수 있으며, 이로인한 통행료 수입의 변화도 아울러 발생하게 된다. 본 연구에서는 통합채산제하에서의 신규 고속도로로 인해 발생하는 통행료 수입 변동에 대하여 고찰하고, 신규 사업이 재정 또는 민자사업으로 추진되었을 때 통행료 수입 변동이 공공기관이나 고속도로 민간사업자에게 의미하는 바를 제시하였다. 또한 통행료 수입 변동의 크기를 개별 사업 평가 및 다수 사업 간 평가에 반영할 수 있도록 지표화 하고자 하였다. 논문의 한계와 향후 연구과제에 대해서도 언급하였다.

• 한국물환경학회지
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• 제28권2호
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• pp.202-212
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• 2012

Due to the deterioration of water supply network and the deficiency of raw water, the water utility of local governments have performed various projects to improve their revenue water ratio. However, it is very difficult to estimate the cost for maintaining the revenue water ratio at higher level after completing the project, because local governments have different conditions affecting the operating and maintenance cost of water supply network. The purpose of this study is to present a procedure to estimate the operating and maintenance cost required to maintain the target revenue water ratio of the water supply network. For this purpose, we estimated the cost used only for operation and maintenance of water supply network of 164 local governments with the aid of K-Mean Clustering Analysis and the data from 40 representative local governments. Then, the regression analysis was performed to find relationship between revenue water ratio and the operating and maintenance cost with two different data sets generated by two classification methods; the first method classifies the local governments by means of k-means clustering, and the other classifies the local governments according to the index standardized by the operating and maintenance cost per unit length of water mains per revenue water ratio. The results shows that the method based on the index standardized by the cost and revenue water ratio of each government produces more reliable results for finding regression equations between revenue water ratio and the operating and maintenance cost only for water supply network. The estimated regression equations for each group can be used to estimate the cost required to keep the target revenue water ratio of the local government.

• 한국IT서비스학회지
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• 제13권4호
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• pp.79-91
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• 2014

The purpose of this study is to analyze the status and the competitiveness improvement of game contents industry comparing to relative LQ index of the no. of character company, the no. of employee and the amount of revenue of 2011, 2012, and 2013 between including Metro area and regional blocks(kangwon, chungchung, daekung, honam, dongnam and jeju region. The results of this research are as follows. In case including metro regional analysis, no. of employee suggested Metro and Chungchung have high competitiveness in during the 3 years. And in case of no. of game company suggested honam, dongnam and jeju area have high competitiveness between 2012 and 2013. The amount of revenue of game industry indicated the only Metro area have over LQ 1.0 which relative higher competitiveness than the other culture contents industry. But in case of except of Metro, no. of game company indicated honam, jeju have relative high competitiveness over LQ 1.0 and the no. of employee indicated kangwon, chungchung, honam and jeju showed relative competitiveness during 3 years. The amount of revenue of game industry indicated kangwon, chungchung and honam suggested high competitiveness. Honam area have strong competitiveness among three category by regional longitudinal analysis. Kangwon and jeju area suggested 2nd strong regional competitiveness. The main competitiveness of game industry were well established among national industry cluster.

• 융합정보논문지
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• 제10권9호
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• pp.206-214
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• 2020

본 연구는 우리나라 종합병원을 대상으로 직·간접보조금이 수익성에 미치는 영향을 살펴보고자 하였다. 자료는 의료기관 회계정보공시시스템을 이용하여 2016년부터 2018년까지 270개 종합병원 회계정보를 수집하였다. 분석지표는 수익성으로 사업수익에 대한 순이익, 보조금지표는 사업수익에 대한 보조금(시설투자 목적의 국고보조금, 고유목적사업 관련 비용, 연구수익, 기부금수익) 비율을 사용하였다. 연구결과, 직접보조금인 국고보조금 비율은 공립기관이 57.30%로 매우 높았다. 간접보조금으로 세금감면 효과인 고유목적사업 관련 비용 비율은 사립대학교병원이 6.69%로 가장 높았으며, 결손 또는 운영보조 목적인 연구 수익 비율은 국립대학교병원이 2.8%로 가장 높았고 기부금수익 비율은 공립기관이 36.4%로 가장 높았다. 보조금이 수익성에 미치는 영향을 살펴본 결과, 국립대학교병원은 사업수익 대비 고유목적사업 관련 비용의 비율과 연구수익 비율이 낮을수록 사업수익 순이익율이 높았으며, 의료법인과 재단법인은 사업수익 대비 고유목적사업 관련 비용 비율이 높을수록 사업수익 순이익율이 높았다는 것을 알 수 있었다. 이러한 결과는 고유목적사업과 관련된 자금의 활용에 따라 수익성이 변동될 수 있다는 것을 의미한다.

• 보건행정학회지
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• 제15권2호
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• pp.53-69
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• 2005

This study has two different objectives. First of all is to comparing results of size efficiency scoring on Public Corporation Medical Center(PCMC) by years of 1993, 1997 and 2003 using Data Envelopment Analysis (DEA). The second is to explore the relationship between revenue and PCMCs' efficiency score, and the relationship between expenses and the efficiency score in 2003. The average efficiency scores were significantly decreased by years of 1993, 1997 and 2003. The revenue per bed(revenue) in 2003 was smaller than the expenses per bed(expenses) in 2003, therefore PCMCs had deficits in 2003. The expenses was negatively related to the efficiency score. Therefore its means was that improving efficiency score decreased expenses. Contrarily, the revenue had any significant relation to the efficiency score. PCMC needs to various endeavors to improve their productivity and efficiency. One of the alternatives is reduce of work load through integration of PCMC and development of new performance index reflecting their situation and future direction.

• Journal of the Korean Data and Information Science Society
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• 제18권1호
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• pp.31-40
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• 2007

Many previous researchers tried to analysis relationship between financial index of hospitals such as revenue, expenses, and profit and hospital outcome such as number of inpatient and outpatient or, between that financial index and hospital size including number of hospital beds. However, these studies did not find exact relationship between financial index and hospital efficiency and productivity. Therefore, purpose of the study explores exact relationship between hospital financial outcome and hospital efficiency and productivity using adjusted inpatient days concept from American Hospital Association. Through the empirical analysis, the researchers find that hospital profit has the U-shape quadratic function to operation ratio. 66.9% of operation ratio is changing point and hospitals with 55.8% through 75.0% of operation ration have experience deficit situation. Considering the hospital circumstance, Korean hospitals would be to maintain general hospital type with various specialty departments.

• ETRI Journal
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• 제41권5호
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• pp.626-636
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• 2019

A novel algorithm for joint user selection and optimal power allocation for Stackelberg game-based revenue maximization in a downlink non-orthogonal multiple access (NOMA) network is proposed in this study. The condition for the existence of optimal solution is derived by assuming perfect channel state information (CSI) at the transmitter. The Lagrange multiplier method is used to convert the revenue maximization problem into a set of quadratic equations that are reduced to a regular chain of expressions. The optimal solution is obtained via a univariate iterative procedure. A simple algorithm for joint optimal user selection and power calculation is presented and exhibits extremely low complexity. Furthermore, an outage analysis is presented to evaluate the performance degradation when perfect CSI is not available. The simulation results indicate that at 5-dB signal-to-noise ratio (SNR), revenue of the base station improves by at least 15.2% for the proposed algorithm when compared to suboptimal schemes. Other performance metrics of NOMA, such as individual user-rates, fairness index, and outage probability, approach near-optimal values at moderate to high SNRs.

• 대한치과의사협회지
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• 제54권12호
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• pp.971-984
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• 2016

The increase rate of dentists' competition is very fast at metropolitan areas in South Korea. We compare metropolitan and rural parameters to investigate the relation between competition and revenue variation. The competition and revenue variables of 73 metropolitan and 75 rural areas were calculated from 2010 Census of Service Industry microdata which include non-insurance revenues of dental clinics. Independent sample t-test results showed that the level of competition among dental clinics in metropolitan areas is higher. The lowest and the low ranked revenues are higher in rural areas. The highest and the average revenues are higher in metropolitan areas. But, 25 percentile and median revenues has no significant difference between two areas. Simple log linear regression results showed that the number of clinics could explain the distribution of revenues in both areas better than the density of active dentists and Herfindahl-Hirschman index. In the areas with many clinics have high maximum and average revenues and low minimum revenues. The increasing rate of maximum revenues is higher in metropolitan areas though the decreasing rate of minimum revenues is higher in rural areas. Metropolitan areas have higher Gini coefficients than rural areas, but the increasing rate of Gini coefficients is lower than rural areas. Findings from this study are useful reference when the dentists select the opening areas. One is that the median revenues between metropolitan and rural areas have no significant difference. The other is that the rural areas ensure the more stable and uniform revenues. The results would help to relieve the consumptive competition among dentists and to achieve the distributional efficiency of dental human resources.

• 한국콘텐츠학회논문지
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• 제13권12호
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• pp.439-446
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• 2013

본 연구는 캐릭터 문화콘텐츠 산업의 전국 권역별 경쟁력 분석을 위해 입지적 LQ 지수를 비교하여 권역별 캐릭터산업의 현황과 경쟁력 제고를 위한 방안을 제시하고자 하였다. 2007년, 2009년, 2011년의 종단적 관점에서 캐릭터산업의 산업체수, 종업원 수, 매출액에 기초한 경쟁력을 분석하였다. 수도권을 포함한 경우 종사자수와 산업체 수에 있어서 3개년 연속 제주권, 동남권과 수도권이 캐릭터산업이 타 산업보다 경쟁력이 제시되었으며, 매출액에서는 3개년 연속 수도권 제외 전 권역의 캐릭터 산업이 타 산업 대비 경쟁적이었다. 한편 수도권을 제외한 6개 권역 분석에서 종사자수와 산업체수에 있어서 제주권과 동남권의 경쟁력이 제시되었고 충청권이 2009년에 종사자수에서, 2011년 산업체수에서 LQ 지수 1이상으로 나타냈다. 매출액에 있어서는 제주권 만이 3개년 연속 경쟁적으로 나타났다. 결과적으로 종사자수, 산업체수와 매출액을 종합적으로 살펴볼 때 3개년 동안 동남권, 제주권과 충청권이 경쟁력 있는 권역으로 나타났다.

• 보건행정학회지
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• 제23권2호
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• pp.124-131
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• 2013

Background: This study aimed to measure the opportunity income by identifying the economic length of stay (ELOS) which is the intersection point of daily revenue and cost on appendectomy and pneumonia cases. Methods: The research subjects were 460 patients of appendectomy and 606 patients of pneumonia, discharged from a general hospital between July 1, 2009 and June 30, 2010. ELOS calculated with both of total revenue on diagnosis-related group (DRG) and fee-for service (FFS). The cost is calculated by activity-based costing system of the hospital. Results: Average length of stay (ALOS) of appendectomy was 4.48 days and its average revenue per case were 1,710,215 (1,989,105) won by DRG (FFS). The variable cost was 491,262 won which was 28.7% (24.7%) of DRG (FFS) total revenue. And 97.2% of the total variable cost was incurred within 2 days from admission. The ELOS was 4 (5) days in DRG (FFS). Shortening three days (two days) would increase opportunity income 52.0% (82.2%) in DRG (FFS). ALOS of pneumonia case was 4.86 days and its average revenue per case were 489,448 (761,426) won by DRG (FFS). The variable cost was 27,230 won which was 5.6% (3.6%) of DRG (FFS) total revenue. Thirty-eight point nine percent of the daily variable cost was incurred in discharge date. The ELOS was 2 (4) days in DRS (FFS). Shortening three days (one day) would increase opportunity income 27.6% (37.2%) in DRG (FFS). Conclusion: The ELOS would be used by strategic index for achieving minimum profit and developing the ways to get there. But we also should not pass over that the opportunity income obtained by the reducing ALOS may cause some problem of quality.