• 디지털콘텐츠학회 논문지
• /
• 제15권2호
• /
• pp.289-300
• /
• 2014

홈페이지 서비스를 주로 하는 웹 서버들의 평균 이용률이 대체로 낮고 업무 부하의 변화도 크지 않은 편이다. 또한 대부분의 사용자가 구성원 등으로 국한되고 새로운 서버를 구매할 때 최적용량 보다는 최대용량을 선택하는 경향이 있어 과도한 서버를 독점 운용하게 된다. 웹 서버의 운용에는 초기 비용뿐 아니라 평상시 운용비용도 포함된다. 평균 이용률이 낮은 웹 서버들을 클라우딩하여 통합 운영하면 사용자에게 동일한 품질을 제공하면서도 총 비용을 줄일 수 있을 것이다. 본 논문에서는 캠퍼스내의 여러 웹 서버들을 클라우딩하여 통합 운영할 때 기존 웹 서버와 동일한 서비스품질을 제공하기 위한 최적용량을 산출하고 그때 절약되는 비용을 분석한다. 전통적인 웹 서버들과 통합 클라우딩을 위한 서비스 모델을 정립하고 사용자 요구 행태에 따른 최적용량을 대기이론으로 분석하고 비용 절감 정도를 제시한다. 제시된 서비스 모델과 분석 결과는 중대규모의 대학 캠퍼스는 물론 비슷한 규모의 기업, 기관들에 쉽게 응용할 수 있다.

• 보건행정학회지
• /
• 제18권2호
• /
• pp.19-38
• /
• 2008

Financial ratios are key indicators of an organization's financial and business conditions. Among various financial indicators, profitability, financial structure, financial activity and liquidity ratios are frequently used and analyzed. Using the structural equation modeling(SEM) technique, this study examines the structural causal relationships among key financial indicators. Data for this study are taken from complete financial statements from 142 hospitals that passed the standardization audit undertaken by the Korean Hospital Association from 1998 to 2001 for the purpose of accrediting teaching hospitals. In order to improve comparability, ratio values are standardized using the Blom's normal distribution. The final model of the SEM has four latent constructs: financial activity(total asset turnover, fixed asset turnover), liquidity(current ratio, quick ratio, collection period), financial structure(total debt to equity, long-term debt to equity, fixed assets to fund balance), and profitability(return on assets, normal profit to total assets, operating margin to gross revenue, normal profit to gross revenue). While examining several model fit indices(Chi-square (df) = 178.661 (40), likelihood ratio=4.467, RMR=.11, GFI=.849, RMSEA=.157), the final SEM we employed shows a relatively good fit. After examining the path coefficient of the constructs, the financial structure of the hospital affects the hospital's profitability in a statistically significant way. A hospital which utilizes its liabilities, more specifically fixed liabilities, and makes a stable investment decision for fixed assets was found to have a higher profitability than other hospitals. Then, the standard path coefficients were examined to directly compare the influence of variables. It was found that there were no statistically significant path coefficients among constructs. When it comes to variables, however, statistically significant relationships were found. between. financial activity and. fixed. asset turnover, and between profitability and normal profit to gross revenue. These results show that the observed variables of fixed asset turnover and normal profit to gross revenue can be used as indicators representing financial activity and profitability.

• 문화기술의 융합
• /
• 제5권1호
• /
• pp.21-26
• /
• 2019

본 논문은 조직의 공정혁신과 마케팅혁신에 따른 혁신 방향과 내부적인 인적자원관리 전략유형 간의 매칭에 따라 기업의 성과(품질경쟁력, 영업이익)가 어떻게 달라지는지에 대해 분석하였다. 분석을 위한 자료는 한국노동연구원(KLI)의 2015년 6회차 사업체패널에 대한 조사로 수집된 3,431개 기업에 대한 자료를 활용하였다. 기업의 혁신은 군집분석을 통해 전체혁신, 부분혁신, 혁신부진의 집단으로 유형화 하였으며, 인적자원관리는 몰입형 인적자원관리와 통제형 인적자원관리의 유형으로 구분하였다. 분석방법은 혁신유형과 인적자원관리 전략유형 간의 매칭을 통해 총 6개의 집단으로 분류하였고, 6개 집단에 속한 기업들이 보이는 품질경쟁력과 영업이익의 평균 차이를 비교하는 분산분석(ANOVA)을 사용하였다. 분석결과 전체혁신-몰입형 인적자원관리 분면의 기업들이 부분적인 혁신이나 혁신부진 집단의 기업들보다 품질경쟁력과 영업이익이 유의하게 높은 결과를 보였으며, 모든 혁신이 부진한 혁신부진-통제형 인적자원관리 분면의 기업들이 그 이상의 기업들 보다 낮은 품질경쟁력과 영업이익을 보여 그 성과가 유의하게 낮은 것으로 나타났다.

• 융합경영연구
• /
• 제11권2호
• /
• pp.23-32
• /
• 2023

Purpose: This study examines the effect of full information disclosure on seller profit when there exists information asymmetry between sellers and buyers, focusing on the risk averseness of buyers. By investigating the interaction between product quality and perceived risk through online sales data, we attempt to figure out the incentive structure of full information disclosure specifically when buyers are risk-averse, so that we can suggest more feasible information disclosure strategy to sellers. Research design, data and methodology: Our empirical model analyzes the sales data of collectible goods from a major online seller using Poisson regression. In our model, we have specifically considered risk-averseness of buyers by estimating the interaction effect between the product quality and perceived risk on seller profit, aiming for a more precise empirical analysis on sellers' incentive structure of full disclosure. Results: Our empirical analysis strongly supports the effect of interaction between product quality and perceived risk, showing that the incentive for full disclosure is much stronger when product quality is higher, and vice versa. Therefore, sellers are strongly encouraged to voluntarily reveal product weaknesses when their product quality is higher than average, while it is more profitable to hide any product defects when quality claim is lower than average. Conclusions: This study supports the related literature by confirming economic incentives for full disclosure, and also supplements and strengthens previous studies by presenting that the effect of interaction between product quality and perceived risk strongly affects seller profit. Our unique finding supports both mandatory disclosure and voluntary disclosure arguments and presents practical implications to marketing managers by suggesting that seller's incentive for revealing weaknesses depends on the level of seller's product quality.

• 한국콘텐츠학회논문지
• /
• 제21권1호
• /
• pp.55-65
• /
• 2021

본 연구의 목적은 한국 전통공연예술 산업이 무상지원에 의존하는 단일한 수익구조의 한계를 극복하는 데 해외시장진출이 기회요인이 될 수 있는지를 탐색하는 것이다. 이를 위해 먼저 산업가치사슬과 비즈니스모델의 개념을 응용하여 해외시장진출과정을 준비, 추진, 수확, 후속의 4단계로 구분한 분석 틀을 설계하였다. 또한 전통음악분야에서 시장지향적 사고를 갖고 능동적으로 해외시장개척에 나선 사례 3곳을 발굴하여 현 단계 한국 전통공연예술 산업의 해외진출모델을 도식화하였다. 해외시장이 아직은 주요 수익원이 되지는 못하지만 수익 다원화 차원에서 해외진출을 추진하는 전통공연예술종사자라면 본 연구에서 도출한 해외진출모델을 고려해 볼 수 있다. 한편 정부는 사례연구에서 지적되었듯이 전통공연예술 산업의 해외진출을 담당하는 전문기획자와 유통전문가를 양성하는 제도를 정비하고, 해외진출을 위한 일회성 경비지원 일색에서 벗어나 장기적인 정보제공 프로그램을 개발해야 한다.

• 한국경영과학회지
• /
• 제41권2호
• /
• pp.129-139
• /
• 2016

This paper presented a robust ship scheduling model using the quadratic programming problem. Given a set of available carriers under control and a set of cargoes to be transported from origin to destination, a robust ship scheduling that can minimize the mean-variance objective function with the required level of profit can be modeled. Computational experiments concerning relevant maritime transportation problems are performed on randomly generated configurations of tanker scheduling in bulk trade. In the first stage, the optimal transportation problem to achieve maximum revenue is solved through the traditional set-packing model that includes all feasible schedules for each carrier. In the second stage, the robust ship scheduling problem is formulated as mentioned in the quadratic programming. Single index model is used to efficiently calculate the variance-covariance matrix of objective function. Significant results are reported to validate that the proposed model can be utilized in the decision problem of ship scheduling after considering robustness and the required level of profit.

• 산업경영시스템학회지
• /
• 제42권4호
• /
• pp.106-115
• /
• 2019

A sharing economy has emerged through today's trust-building mechanisms, and a sharing economy is called a future economic model through a positive future market prospect. In this context, while the overseas sharing economic business is becoming a global trend, the domestic sharing economic business is busy following the global trend. The purpose of this study is to investigate the development direction of sharing economic business in Korea. First, the sharing economic cases of 50 oversea and domestic businesses were analyzed by time series analysis. Next, a cross-country analysis to analyze the business distribution and KCERN's sharing economic model through sharing economic cube model was conducted. Finally, profit model analysis through business case study and the relationship between the derived factors were investigated. As a result of the analysis, this study found comparative trends between overseas and domestic including differences in cultural and institutional environments and profit models. This study suggested directions for domestic sharing economy business.

• 대한산업공학회지
• /
• 제34권3호
• /
• pp.362-372
• /
• 2008

Manufacturers, or vendors, and their customers continue to adopt vendor-managed inventory(VMI) program to improve supply chain performance through collaboration achieved by consolidating replenishment responsibility upstream with vendors. In this paper, we construct a mixed integer linear programming model and propose a genetic algorithm for the integrated inventory and routing problems with lost sales maximizing the total profit in the VMI supply chains which comprise of a single manufacturer and multi-retailer. The proposed GA is compared with the mathematical model on the various sized test problems with respect to the solution quality and computation time. As a result, the GA demonstrates the capability of reaching solutions that are very close to those obtained by the mathematical model for small problems and stay within 3.2% from those obtained by the mathematical model for larger problems, with a much shorter computation time. Finally, we investigate the effects of the cost and operation variables on the total profit of the problem as well as the GA performance through the sensitivity analyses.

• 한국항공운항학회지
• /
• 제25권1호
• /
• pp.11-22
• /
• 2017

Aviation/tourism industry has a unique characteristic of high inter-dependance between customer and service-provider. It is the mental condition of service-provider that could influence on the attitude of the service-provider. Thus, it is important to manage the mental condition of the service employees to enhance a company's financial performance. This paper tries to analyze the combined model of both policy acceptance and service profit chain(SPC) models. First, service policy acceptance model tells how the service policy acceptance, which consists of policy compliance, trust, participation and policy failure, would influence on SPC model. According to empirical research, it was found that both the employees' policy compliance and the policy trust have a positive significant impact on their participation on service policy. In the policy acceptance model, the employee's voluntary participation based on their trust and compliance of the policy was proven to have a positive effect on increasing job satisfaction and customer orientation. Regarding SPC model, their participation in the policy had the strongest impact among variables on customer orientation. Such results implies the employees' participation on the policy could become the starting point to enhance the customer value.

• 한국IT서비스학회지
• /
• 제15권4호
• /
• pp.153-174
• /
• 2016

On account of multiple causes, including prolonged global economic crisis, addressing environmental pollution and the advent of hyper-connected society, a new paradigm called 'sharing economy' has rapidly emerged. Many startups have attempted to build promising business model based on the sharing economy concept. Nevertheless, successful cases are still very rare in the global level, except for Uber and Airbnb cases. Therefore, this study analyzes necessary causes and sufficient causes for successful settlements in the market through a comparative case analysis on digital matching firms in the sharing economy businesses. For the case study, we compare five successful cases (Uber, Airbnb, Kickstarter, TaskRabbit and DogVacay), three failure cases (Homejoy, Ridejoy and Tuterspree) and a platform cooperativism case (Juno) in accordance with six value attributes of business model including value proposition, market segment, value chain, cost structure and profit potential, value network and competitive strategy. We apply Boolean method to support controlled comparison and eliminate unnecessary attributes. The Boolean analysis result shows that value proposition, cost structure and profit potential, value network and competitive strategy are the essential attributes. Furthermore, the result indicates that each attribute is a necessary condition, where all four conditions should be met simultaneously in order to be successful. With this result, we discuss essential consideration for those who are planning startup based on the sharing economy business model.