• Journal of Acupuncture Research
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• 제33권2호
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• pp.61-76
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• 2016

Objectives : This study was designed to clarify population-social characteristics that influence the utilization patterns of hospitalized patients in a traditional korean hospital, thereby providing clinical data which would help further improvements of traditional korean medical service in particular the Acupuncture and Moxibustion. Methods : We investigated population-social characteristics and annual utilization patterns of all patients who were hospitalized for more than 24 hours in a Korean Medical Hospital from January 2005 to December 2014. The obtained data were recorded in the EMR chart and statistical analysis was performed using SPSS 21.0. Additionally, data from the patients admitted to the department of Acupuncture and Moxibustion were analyzed separately. Results : 1. All inpatients had a significant annual difference in age, gender, hospitalized department, and disease code annually but not in re-hospitalization number. Inpatients of the department of Acupuncture and Moxibustion also varied in their age, gender, and disease code annually, but not in re-hospitalization number. 2. Pearson correlation analysis on all inpatients showed that the mean days of hospital treatments had a negative correlation with all variables except medical care insurance. Total cost, cost per day per person and recuperation cost had a positive correlation with all variables except medical care insurance. There was no meaningful relationship between nonrecuperation cost and the variables. 3. Stepwise multiple regression analysis on all inpatients showed that the mean days of hospital treatments had a negative correlation with all variables except automobile insurance. The total hospitalization costs had a positive correlation with both general insurance and medical care insurance. Cost per day per person and recuperation cost had a positive correlation with the females. There was no meaningful relationship between non-recuperation cost and the variables. 4. Pearson correlation analysis on inpatients of the department of Acupuncture and Moxibustion inpatients showed that the mean days of hospital treatments had a positive correlation with all variables except general insurance and automobile insurance. Total cost and recuperation cost had a positive correlation with all variables except medical care insurance, and cost per day per person had a positive correlation with females and general insurance. There was no meaningful relationship between non-recuperation cost and the variables. 5. Stepwise multiple regression analysis on inpatients of the department of Acupuncture and Moxibustion inpatients, the mean days of hospital treatments, total cost, cost per day per person and recuperation cost had a positive correlation with general insurance. There was no meaningful relationship between non-recuperation cost and the variables. Conclusion : Population-social characteristics of inpatients annually varies, and the change influences the utilization pattern.

• 한국IT서비스학회지
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• 제12권2호
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• pp.31-53
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• 2013

Web 2.0 has affected existing e-commerce and created a new business model of e-commerce, known as social commerce. Social commerce is a subset of e-commerce using social network services and is emerging as an important platform due to increased popularity of social networking services. This study focuses on analyzing the factors that influence the shopping value and intention to repurchase of social commerce users. Based on prior researches, we develop a research model, including individual characteristics of social commerce users (Collectivism, Price Sensitivity, Impulse Buying) and social commerce characteristics (Cost saving, Product Variety, Shopping Convenience). Furthermore, this study proposed the moderating effect of Perceived Security and the relationship between shopping value and intention to repurchase. To empirically validate, the data were collected from 220 social commerce users. The results indicated that individual characteristics (collectivism, price sensitivity, impulse buying) were positively related to hedonic shopping value. In addition, social commerce characteristics (cost saving, shopping convenience) were positively related to utilitarian value. The shopping value(hedonic and utilitarian) had a significant influence on intention to repurchase. The moderating effects of perceived security also was significant. Lastly, the implications for theory and practice are discussed.

• 한국콘텐츠학회논문지
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• 제18권9호
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• pp.209-216
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• 2018

본 연구는 국내 기업의 사회적 책임활동(CSR)이 원가의 하방경직성에 미치는 영향을 검증하였다. 기업의 매출감소에 따른 원가감소율이 매출증가에 따른 원가증가율보다 낮게 관찰되는 비대칭적인 원가행태를 원가의 하방경직성이라고 부른다. 본 연구에서는 CSR을 수행한 기업과 그렇지 않은 기업을 구분하여 하방경직성인 원가행태를 비교하였다. 연구결과 CSR을 수행한 기업이 그렇지 않은 기업보다 하방경직적인 원가행태가 보다 강하게 관찰되었다. 이는 기업이 CSR를 통한 가치창출을 위해서는 지속적인 투자가 필요하므로, 매출이 감소하였다고 하여 이에 관련된 자원투입을 즉각적으로 감소시킬 수 없다는 것을 의미한다. 본 연구의 결과는 경영자의 원가에 관련된 의사결정에 기업의 CSR이 영향을 줄 수 있다는 실증증거를 제시하였다는데 자본시장참여자에게 의미 있는 통찰력을 제공할 것으로 기대된다.

• 한국가스학회지
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• 제2권3호
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• pp.18-24
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• 1998

본 연구에서는 한계비용 이론에 바탕을 둔 램지가격결정방식과 효율적요소가격결정방식을 이용하여 천연가스 가격체계의 이론적 모형을 도출함으로써 사회후생의 최적화를 달성하기 위한 국내 가스가격결정방식의 개선방향을 제시하였다. 사례연구를 통하여 국내 가스산업의 현행 원가보상방식, 램지가격결정방식과 효율적요소가격결정방식에 의한 가격간에 배분효율성과 사회후생을 비교 분석하였다. 배분효율성은 도시가스용의 경우에 원가보상방식이 램지가격결정방식 및 효율적요소가격결정방식에 비하여 높게 나타났으나, 발전용의 경우는 원가보상방식이 두 방식에 비하여 낮음을 알 수 있었다. 반면에 사회후생효과는 현행의 원가보상에 의한 가격결정방식보다 램지가격결정방식과 효율적요소가격결정방식을 적용하는 것이 보다 더 향상되는 것으로 나타났다.

• 대한토목학회논문집
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• 제33권3호
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• pp.1087-1094
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• 2013

본 연구는 자동차 배출가스에 의한 대기질의 사회적 비용 추정 결과의 객관성 향상을 목적으로, 일 단위, 첨두 비첨두 시간단위, 각 시간 단위별 대기질의 사회적 추정 방법 차이가 그 결과에 미치는 영향을 살펴보고 그 시사점을 도출하였다. 분석결과, 대기질의 사회적 비용은 분석 시간대에 따라 약 24배까지 차이가 발생하는 것으로 나타났으며, 일 단위와 각 시간 단위 통행배정에 따른 대기질의 사회적 비용은 연 평균 약 6,536억원의 차이가 발생하는 것으로 나타났다. 한편 첨두 비첨두 단위와 각 시간 단위의 통행배정에 따른 추정 결과는 약 1%의 차이가 발생하지 않는 것으로 나타났다. 본 연구를 통해, 대기질의 사회적 비용은 통행배정 방법론에 따라 큰 차이가 발생한다는 점을 확인하였고, 특히 CAPSS의 방법보다 시간대 분석이 가능한 교통수요분석 기법에 의한 배출량 및 대기질 비용 추정방법이 보다 정확도가 높음을 입증할 수 있었다. 아울러 대기질 개선을 위해, 시간대별 교통수요관리의 필요성을 확인할 수 있었다.

• 자원ㆍ환경경제연구
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• 제24권1호
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• pp.85-107
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• 2015

본 논문은 공공투자사업의 경제적 타당성 평가에 적용되는 사회적할인율로서 쌍곡선 함수방식의 적용가능성에 대해 검토해본 연구이다. 이를 위해 본 연구에서는 쌍곡선 방식의 사회적할인율 적용이 필요하다고 논의되고 있는 대표적인 사업범주인 환경관련 공공투자사업들의 실제 편익과 비용 데이터를 활용하여, 쌍곡선 방식의 사회적할인율 적용이 사업의 경제적 타당성 분석결과에 어떠한 영향을 미치는지에 대해 살펴보았다. 아울러 기존 선행연구들이 제안하고 있는 바, 즉 쌍곡선 방식을 적용하기 위한 충분히 긴 분석기간이란 과연 어느 정도의 기간을 의미하는지를 가늠해보기 위해서 경제적 타당성 분석기간을 최대 10세대까지로 확장하여 그 결과를 분석해보았다. 본 연구의 분석결과에 따르면, 쌍곡선 방식의 사회적할인율 적용은 사업의(편익/비용) 비율을 높이는 효과를 발생시키지만 이는 분석기간이 4-5세대 이상으로 충분히 확장되는 경우에만 해당되며 그 효과 역시 제한적인 것으로 나타났다.

• 한국의료질향상학회지
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• 제26권2호
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• pp.95-103
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• 2020

Purpose: This study was to examine whether a health care model that provides comprehensive medical services based on population groups to members of the medical cooperative is applicable as a policy alternative in terms of medical use and cost. Methods: Data were derived from National Health Insurance claim data in 2019. We compared the medical volume and expenses of patients who visited social cooperative-type medical clinics with other patients, control group who visited other clinics in a local area. Results: The average number of visit days was 25.3 days in social cooperative-type medical clinics, more than 24.2 days in the control group (p=.004). However, the average medical cost per visit was KRW 46 thousand in social cooperative-type medical clinics, which was significantly lower than KRW 51 thousand in the control group (p<.001), and the total medical cost was also KRW 16.1 billion in social cooperative-type medical clinics and KRW 16.9 billion in the control group. Conclusion: We identified that a population-based health care model might change patients' behaviors to health care services and decrease total medical cost. Further population based experiment is needed to develop alternative healthcare model.

• 디지털산업정보학회논문지
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• 제7권3호
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• pp.137-150
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• 2011

Long-term customer retention strategies with switching cost is very important for gaining a competitive advantage in on-line shopping mall environment. The purpose of this study is to investigate the affecting factors of switching cost in terms of on-line shopping mall's quality and the effects of it on customers' behavior moderating commitment. According to the result, information quality and customized information were found to be significantly related to social switching cost, and also royalty program and product differentiation were found to be significantly related to lost benefit cost and procedural cost respectively. When it comes to the relationship between switching cost and commitment, results shows that social switching cost is not significantly related to affective commitment. Lost benefit cost and procedural cost, however, were found to be significantly related to affective commitment and calculative commitment respectively. Finally, affective commitment was found to bolster repurchase intention and control negative WOM, and calculative commitment was found to bolster both repurchase intention and negative WOM.

• 한국항해항만학회지
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• 제28권1호
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• pp.69-74
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• 2004

Container Freight Station(CFS)은 터미널의 내부 또는 외부에 배치되어 여러 화주의 소량(Less than Container Load ; LCL) 화물을 컨테이너화시키거나, 수입된 컨테이너에서 내품을 인출하여 여러 화주에게 분산시키는 기능을 담당하고 있다. 하지만 CFS가 터미널 내부에 배치될 경우에는 LCL화물을 운송하기 위한 일반차량의 운행이 증가하여 터미널 주변의 교통 혼잡, 높은 사회 비용 및 물류비용의 발생, 장치장의 장치 여건 악화 등과 같은 문제를 초래한다. 본 연구는 현재 개발 중인 부산신항만을 대상으로 CFS를 각 터미널 내부에 개별적으로 배치하는 경우와 북측 컨테이너 부두 배후지에 거점화할 경우에 대해 총 비용 관점(사회적 비용과 물류비용)에서 경제성을 평가하는 것을 그 목적으로 한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권4호
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• pp.1263-1274
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• 2021

In online competitive social networks, each user can be influenced by different competing influencers and consequently chooses different products. But their interest may change over time and may have swings between different products. The existing influence spreading models seldom take into account the time-related shifts. This paper proposes a minimum cost influence maximization algorithm based on the competitive transition probability. In the model, we set a one-dimensional vector for each node to record the probability that the node chooses each different competing influencer. In the process of propagation, the influence maximization on Competitive Linear Threshold (IMCLT) spreading model is proposed. This model does not determine by which competing influencer the node is activated, but sets different weights for all competing influencers. In the process of spreading, we select the seed nodes according to the cost function of each node, and evaluate the final influence based on the competitive transition probability. Experiments on different datasets show that the proposed minimum cost competitive influence maximization algorithm based on IMCLT spreading model has excellent performance compared with other methods, and the computational performance of the method is also reasonable.