• Title/Summary/Keyword: opportunity cost method

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A Study on 5G Service Methods by using BOCR Model and ANP

  • Song, Inkuk
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.16 no.10
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    • pp.3299-3312
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    • 2022
  • Recently, South Korea preferentially allocated frequencies to build 5G networks as a core competitiveness of the 4th Industrial Revolution. Although the government recognize the importance of 5G construction and preoccupation, network operators have limited to some services, testing the possibility of practical use of 5G. They hesitated to actively build and to carry out the service of a complete 5G network. While 5G is being developed and standardized like this, no one is sure of this step exactly what 5G will be. Thus, following research questions are asked by various stakeholders of 5G market: What is an ideal service providing method for the practical use of 5th generation mobile network? And what are the critical elements to be considered when selecting the service providing method? Therefore, the study aims to investigate 5G service providing issues and elements to be considered and to provide most appropriate service providing method for the practical use of 5G. The results identify that 'Specialized Service' is most appropriate method at the aspects of benefit and opportunity as well as the aspect of risk. In addition, the outcomes imply that the experts replying to the survey not only expect the expansion of emerging market, but also concern the social risk and cost. Since the study dealt with economic, social and business issues in providing 5G service, it might contribute not only to practical research, but also to academic research regarding 5G service method.

A Preliminary Study for Deriving Subjects of MOT Method Based on the Utilization Status in Korea Enterprises (기업활용수준을 반영한 기술경영 연구방법론 교과도출을 위한 사전연구)

  • Lee, Jae-Ha;Na, Won-Shik
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.35 no.2
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    • pp.212-219
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    • 2012
  • This study focus on what methods of MOT are needed and utilized to solve a technical problem in the MOT leading company. We first classified the MOT methods by project life cycle and R&D job quality based on the several discussion with working group. In order to study, the survey was carried out by 168 experts working on MOT practices. Our main research findings are as follows. The level of utilized MOT methods was above average because MOT sector was beginning to represent an increasing share of total R&D business. But the satisfaction level on the MOT majors was below average. The more utilized MOT methods in practices were 'environment analysis and opportunity research,' 'business feasibility,' 'roadmapping,' 'portfolio,' 'technology tree,' 'scheduling,' 'risk management,' 'six sigma,' 'design of experiment,' 'quality control,' 'cost analysis' etc. And the subjects of product realization process were also needed to MOT practice such as 'design for reliability,' 'design for cost,' 'design for performance,' 'design for safety' deeply involved to product quality. Finally, the capability requested to University students were 'problem define and solving,' 'technology planning and strategy,' 'creative thinking.'

Estimating the Reimbursing Price Level of Oriental Medical Services in the National Health Insurance (한방의료서비스의 건강보험수가 산출방법과 추정)

  • Kim, Jin-Hyun
    • Journal of Society of Preventive Korean Medicine
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    • v.12 no.3
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    • pp.21-34
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    • 2008
  • Objectives : This paper analysed the alternative methods of calculating conversion factor for oriental medicine in the National Health Insurance and estimated the conversion factor(reimbursing price level) of the oriental medical services, based on health insurance claims data and macro economic data. Methods : Comparing cost accounting method, SGR model, and index model to estimate conversion factor in the national health insurance, six empirical models were derived depending on the scope of revenue considered in financial indicators. Classifications of data and sources used in the analysis were identified as officially released by the government. Results and Conclusion : Cost accounting analysis and SGR model showed a two digit decrease in the physician fee schedule of oriental medical services in the national health insurance, while index model indicated a positive increase in the fee reimbursed. As expected, SGR model measured an overall trend of health expenditures rather than an individual financial status of medical institutions, and index model properly estimated the level of payments to oriental medical doctors. Upon a declining share of health expenditures on oriental medicine, a global budget system fixed to a flat rate of total budget could be an opportunity as well as a challenge.

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The use of the telephone for a medical consultation for checking the examination results (검사 결과 확인을 위한 전화 진료의 활용)

  • Lee, Jung Won;Kim, Yeon Jung;Ahn, Sei Hyun;Park, Chan Heun
    • Korea Journal of Hospital Management
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    • v.18 no.1
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    • pp.59-69
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    • 2013
  • Purpose Patients should have a regular medical check-up, the cost direct and indirect medical expenses to check the results, and revisit the hospital. Some of patients often want to use the telephone for a medical consultation, Method The subjects participating in this study were a selection 485 patients who received outpatient service in Asan Medical Center and Gangbuk Samsung Hospital. The patients's favorite method for medical check-up, time, cost, fatigue, and inconvenience, in regard with the revisit to check the examination results, were researched and analyzed on identical questionnaires about them. Results The average transportation, food expenses and opportunity costs the subjects spent was 90,400 for those from the Seoul and Gyunggi area, and 269,800 from other area. And the average required time per visit was 4.13 hours for those from the Seoul and Gyunggi area, 11.84 hours from other areas, and averagely 7.72 hours for all the subjects. More than 75% of the subjects answered that they felt tired and their work was interrupted. The subjects from both areas preferred the check by phone. Conclusion If the scope of telephone medical consultation is defined and the doctor-patient certification is possible, it can be thought as an efficient alternative of the medical check-up by revisit. It is necessary to discuss an appropriate amount of the medical check-up by phone which the same cost and effort can be allocated in.

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Diversification, Industry Concentration, and Bank Margins: Empirical Evidence from an Emerging South Asian Economy

  • SARWAR, Bilal;MUHAMMAD, Noor;ZAMAN, Nadeem Uz
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.7
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    • pp.349-360
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    • 2020
  • The study aims to empirically examine the determinants of bank margins from Pakistan, an emerging South Asian economy. To elucidate the importance of the Pakistani banking sector, secondary data has been used, which was extracted from the annual accounts of twenty-four Pakistani scheduled commercial banks (20 conventional, four full-fledged Islamic) over a sample period of 2006 to 2017. The factors identified in the dealership model and the subsequent empirical developments in the dealership model categorized as bank-specific, diversification, regulatory, and industry concentration are analyzed by applying the most-common linear dynamic panel-data estimator, the Generalized Method of Moments (GMM) estimator, developed by Arellano and Bond (1991). The findings reveal that, among the bank-specific variables, funding cost, credit risk, managerial efficiency, market share, and operating cost are significant predictors of bank margins. For diversification variables employed in the study, both variables including net non-interest income and asset diversity are as well significant predictors of bank margins. It is also found that the market concentration variable proxied by the Herfindahl-Hirschman Index (HHI) is significantly predicting bank margins. Subsequently, one of the regulatory variables, the opportunity cost of holding reserves, and one bank-specific variable, the degree of risk aversion, are insignificant in the model.

Optimizing the product portfolio for emerging markets (신흥시장 개척을 위한 최적 제품 포트폴리오)

  • Lee, Taehoon;Lee, Yongseung;Shin, Juneseuk
    • Journal of Technology Innovation
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    • v.26 no.4
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    • pp.1-28
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    • 2018
  • With the growing number of emerging carmakers, automotive parts manufacturers have to penetrate into emerging markets. They can provide large existing carmakers with fully customized parts because of economies scale, but cannot do this for small emerging carmakers due to their small and highly volatile volume order. Once the order by an emerging carmaker is placed, a part manufacturer is exposed to high risks both of decrease in profit margin and high opportunity cost. The platform-based mass customization can be a solution for cost reduction, but the risks of volatility in volume hard to manage. Tackling this issue, we presents a method of optimizing the product portfolio to maximize profits while managing volatility of volume order by emerging carmakers at an affordable level. It is the first robust product portfolio method to keep the scaled deviation of profits at a fixed level under volume order uncertainty. Also, the effect of on the platform-based mass customization on cost is considered. This model can be a building block of conservative market penetration as well as product development strategy while minimizing the financial risks. We conducted an empirical study of a part manufacturer targeting on eighteen automobile manufacturers in North America, Europe and Asia with it powered lift gate.

A Negotiation Method Based on Opportunity Cost in the Trucking Cargo Transportation Market (육상화물운송시장에서 기회비용을 고려한 협상방법론 연구)

  • Kim, Hyun-Soo;Cho, Jae-Hyung
    • The Journal of Information Systems
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    • v.21 no.3
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    • pp.99-116
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    • 2012
  • As a way to allocate lots of orders to many participants for vehicle allocation problem, this study has used an agent negotiation based reverse auction model. This agent negotiation provides coordination functions allowing all participants to make a profit, and accomplishing Pareto optimum solution from the viewpoint of a whole trucking cargo transportation network. In order to build a strategic cooperation relationship based on information sharing, this agent negotiation provides a coordination mechanism in which all the participants including consignors, brokerage firms, and car owners are able to attain their own profits, and also that ensure a competitive market. This study has tried to prove that the result of an agent-based negotiation is the Pareto optimal solution under the present market environment. We established a mathematical formulation for a comparison with the Integer Programming model, and analysing e-Marketplace, structure of shipping expenses and brokerage system in the trucking cargo transportation industry.

Calculation for Components of Locational Marginal Price considering Demand-Side Bidding in a Competitive Electricity Market (경쟁시장내의 수요자원입찰을 고려한 모선별 한계가격의 구성요소산정 기법)

  • Kim, Hyun-Houng;Kim, Jin-Ho;Park, Jong-Bae;Shin, Joong-Rin
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.7
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    • pp.1157-1166
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    • 2008
  • This paper presents a new approach for the evaluation of location marginal prices (LMPs) considering demand-side bidding (DSB) in a competitive electricity market. The stabilization of the electric power supply and demand balance is one of the major important activities in electric power industry. In this paper, we present an analytical method for calculation of LMPs considering DSB, which has opportunity to compete with generating units, as England & Wales Pool's DSB scheme[1]. Also, we propose a new approach that LMP considering DSB is divided into three components. The proposed approach can be used for the evaluation of demand-side bidding into the electricity market and the assessment of the influence of DSB on total production costs and LMPs as well as three components.

An Efficient Operational Technique for constructing Flexible Cell Systemin Domestic Electronic Assembly Industry and Case Study (국내 전자조립업체에서 성공적인 유연 셀 생산시스템 구축 방안과 적용 사례)

  • 박연기;안예환;한경희
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.22 no.50
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    • pp.209-219
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    • 1999
  • This paper presents an efficient operational technique of material feeding process, trainning for multi-operations, machine conditions, and role of foreman and material-supplying man, for constructing the flexible assembly cells in the domestic electronic industries. And an practical method for computing the number of economical cells is also presented by the cost-effective model that compares the additional assembly machine requirement with the four reductive effects including WIP/finished goods inventory, the troubles in the assembly line, the opportunity loss for small order quantity, and amounts of production management due to the introduction of cell line. An case study is introduced in for a domestic electronic assembly line at the end.

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A Location Recognition and Notification Method of Attacker in Wireless Network Environment (모바일 환경에서의 공격자 위치 특정 및 알람 기법)

  • Bong, Jin-Sook;Park, Sang-Jin
    • Journal of Digital Convergence
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    • v.15 no.7
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    • pp.201-211
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    • 2017
  • Wireless network using dynamic IP and mobile IP technology provides the user with convenience of access and movement. However, this causes the attacker who disguises normal user(pretending to be a regular user) to have more opportunity in regard to access and acquisition of information. This paper help the network administrator and the service provider quickly to recognize the attacker's intention to access network and service. Therefore network administrator and service provider can specify and respond the location of the attacker appropriately. To achieve above, we define an entity (W_L_M) that manages user information of WiFi and LTE network, and propose messages and procedures for attacker's location identification and alarm. The performance evaluation of this paper is based on qualitative analysis. By using the proposed method, some cost (message creation, processing and transmission) occurred but it was analyzed to be less than the total network operation cost. The proposal of this paper is a management method that utilizes existing network information and structure. This method can be used as a reference material to enhance security.