• 한국경영과학회지
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• 제13권1호
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• pp.1-9
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• 1988

The purpose of this paper is study the sensitivity analysis of matrix game. Teh sensitivity analysis of matrix is classified into two types. Type one is to find the characteristic region of an element of the pay off matrix in which the value of the current optimal strategy remains as an optimum. Type two is to find that in which the basis of the current optimal strategy does not change. This paper shows the characteristic regions of basic and nonbasic strategies. Further it is found that the characteristic regions of type one and two are same in the case that the element is that of at least one player's nonbasic strategy.

• 대한공업교육학회지
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• 제33권2호
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• pp.1-25
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• 2008

이 연구에서는 공업계열 고등학교의 발전 계획 수립을 위한 학교 컨설팅의 이론을 탐색하고, 컨설팅 모델과 수행기법 모델을 제시한 후, 제시한 모델과 컨설팅 수행 기법에 의하여 수행된 C 공업고등학교의 컨설팅 사례에 대하여 분석하였다. 최근까지 수행된 학교컨설팅은 대부분이 수업 및 장학 컨설팅에 대한 것이며, 학교경영컨설팅 분야에 대한 연구는 아직 미미한 실정이다. 이 논문에서는 공업계열 고등학교에 적합한 학교 컨설팅 모델을 구안하여 착수, 진단, 실행기획, 실행, 종료의 5단계로 제시하였다. 컨설팅 모델을 적용한 C공업고등학교의 컨설팅 사례를 분석하였고, 이는 향후 공업계열 고등학교의 컨설팅 연구의 기초 자료를 제공하고자 함이다. 학교컨설팅 모델의 5단계에 의하여 C공업고등학교의 현황 분석, 설문 조사, SWOT 분석, Issue Tree, 학교 진단 평가 등을 하였다. C공업고등학교의 발전 전략을 수립하기 위하여 Issue Tree에 기초하여 '문제점 및 개선방안 표'를 작성한 후, Pay-Off Matrix를 작성하였다. 최종적으로 C공업고등학교가 단기 및 중장기적으로 해결해야 할 발전 계획을 도출할 수 있었다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제15권1호
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• pp.60-71
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• 2015

In this paper, a matrix game is considered in which the elements are represented as Z-numbers. The objective is to formalize the human capability for solving decision-making problems in uncertain situations. A ranking method of Z-numbers is proposed and used to define pure and mixed strategies. These strategies are then applied to find the optimal solution to the game problem with an induced pay off matrix using a min max, max min algorithm and the multi-section technique. Numerical examples are given in support of the proposed method.

• 산업경영시스템학회지
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• 제36권4호
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• pp.77-83
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• 2013

This study is to develop a mathematical analysis model to grasp the behaviors of cartels. Cartels are formed tacitly and cause tremendous damage to consumers in modern society which is composed of advanced industry structure. The government authorities have instituted the leniency programs to respond cartels. However, cartels will continue unless there are legal sanctions against cartels based on an accurate analysis of leniency programs. The proposed cartel equilibrium analysis model is a mathematical behavior model which is based on the existing methods and the prison's dilemma of game theory. Therefore, the model has a form of pay off matrix of two players. We use a iterated polymatrix approximation (IPA) method to deduct a Nash equilibrium point. The model is validated by an empirical analysis as well.

• 대한안전경영과학회지
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• 제7권4호
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• pp.13-25
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• 2005

As there are more accidents which are more serious in construction site than other industries, it needs the safety management system to be SLIM on the same time, There are still lots of difficulties to prevent those accidents exactly, so it also needs a safety supervision team to prevent the accident, unsafe operation and condition before happening, which is also called as a Man-to-Man safety management method. The range of the job site in one personnel's management is very big and large, so it needs the personnel to keep watch the safety operation and prevent any unsafe/fire accidents. Also the personnel also should find out the unsafe points in the job site, and carefully supervise the dead angle site, then support the totally safety management POINT and realize the ZERO accident.

• 유통과학연구
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• 제14권10호
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• pp.147-152
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• 2016

Purpose - High quality films are affected by both the production stage and various variables such as the size of the movie investment and marketing that changes consumers' perceptions. Consumer preferences should be recognized first to ensure that the movie is successful. If a film is produced without pre-investigation and analysis of consumer demand and taste, the probability of success will be low. This study investigates the balance of production costs, marketing costs, and profits using game theory, suggesting an optimization strategy using the simplex method of linear programming. Research design, data, and methodology - Before the release of the movie, initial demand is assumed to be driven largely by marketing costs. In the next phase, demand is assumed to be driven purely by a movie's production cost and quality, which might also further determine consumer demand. Thus, it is essential to determine how to distribute pure production costs and other costs (marketing) in a limited movie production budget. Moreover, it should be taken into account how to optimally distribute under the assumption that the audience and production company's input resources are limited. This research simplifies the assumptions for large-scale and relatively small-scale movie investments and examines how movie distribution participant profits differ when each cost is invested differently. Results - When first movers or market leaders have to choose both quality and marketing, it has been proven that pursuing a strategy choosing only one is more likely than choosing both. In this situation, market leaders should maximize marketing costs under the premise that market leaders will not lag their quality behind the quality of second movers. Additionally, focusing on movie marketing that produces a quick effect while ceding creative activity to increase movie quality is a natural outcome in the movie distribution environment since a cooperative strategy between market competitors is not feasible. Conclusions - Government film development policy should ignore quality competition between movie production companies and focus on preventing marketing competition. If movie production companies focus on movie production quality improvement then a creative competition would ensue.

• 마케팅과학연구
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• 제19권3호
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• pp.28-36
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• 2009

现有的文献广泛的关注财阀以及他们的所有权和支配权的优点和弱点, 但是几乎没有关于韩国非财阀公司的研究. 然而, Lee, Lee and Pennings (2001)并没有特别的探讨在韩国国内市场非财阀公司为求生存而对抗财阀公司的具有竞争力的战略. 本文的研究动机是通过四个探索性案例的研究, 韩国非财阀公司对抗财阀公司的成功的竞争战略和提出的建议可能会对其他的企业以及公共政策制定者有所帮助. 从产品相似性和公司内的合作关系分别定义竞争和合作的概念. 从这两个方面, 我们开发了以下$2{\times}2$ 矩阵, 为非财阀公司对抗财阀公司提供四种竞争战略. 在小组1的非财阀公司在高端市场对财阀公司让步, 但在低端市场有 "我也是在低端市场" 的产品, 同时承认在高端市场的财阀. 在小组2, 非财阀公司以供应商或互补企业的身份成为财阀公司的合伙人. 在小组3, 非财阀企业从事与财阀直接竞争. 在小组4, 非财阀企业的目标, 以产品创新或服务填补目标市场空白点. 我们选择的4个公司分别是E‐Rae电子企业公司(共存方), Intops(供应商), Pantech(竞争对手)和Humax(小众市场成员). 通过分析这4个案例, 相互提供更丰富的洞察力战略. 基于我们的概念框架, 提出下列假设 : 假设1 : 与财阀公司有合作关系的非财阀公司比没有合作关系的公司表现得更好. 假设1a: 共存方会比竞争方表现得更好. 假设1b: 合伙方会比小众市场成员表现得更好. 假设2: 与财阀公司的产品没有相似性的公司比有相似性的公司表现得要更好. 假设2a: 合伙方比共存放表现得更好 假设2b: 小众市场成员会比竞争方表现得更好. 假设3: 小众市场成员应比共存方表现得更好. 假设4: 按绩效的降序排列依次是合作者, 小众市场成员, 共存方, 竞争方. 一组专家按照我们4组的分类把216家非财阀公司分类. 用SPSS统计软件中的简单方差分析来检验假设. 结果发现. 与财阀公司有合作关系的以及提供与财阀公司不同的产品或服务比较好. 很明确的一点是, 平均来说, 若要对抗财阀公司中获利, 其战略是成为合伙人(供应商或组成部分). 直接与财阀公司硬碰硬的竞争是要付出极高代价的战略, 而这种代价不是非财阀公司能负担得起的. 避免与财阀公司迎面竞争的战略是用不同的产品服务于利己市场, 或是服务于被财阀公司忽视掉的低端市场. 些战略是比较好的生存战略. 本文说明在财阀环境中, 韩国的中小型非财阀公司有一些方法可以生存, 尽管不是没有风险. 根据不同的竞争组合, 合作的公司可以根据产品相似性以及合作关系的维度来选择定位从而制定自己的竞争战略. 例如共存方, 竞争对手, 合伙人, 小众市场成员. 根据我们的探索性案例分析, 合伙人对非财阀公司来说可能是最好的战略, 而竞争者则是有很大风险的. 小众市场成员和共存方处于中间, 但前者比后者要好. 很多中小型企业的管理者只是用简单的, 不是合作就是竞争的观点来审视市场的领导者‐典型的就是财阀. 结果. 很多非财阀公司变成被动的合作者或被自己的竞争对手财阀所击败. 事实上, 合作和竞争并不是互相排斥的, 是可以同时被追求的. 正如本文所建议的, 非财阀公司可以根据他们的环境, 内部资源和能力灵活的选择合作和竞争.