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베이지안 기법을 이용한 주관적 가중선형효용모형 (The Subjectively Weighted Linear Utility Model using Bayesian Approach)

  • 김기윤;나관식
    • 한국경영과학회지
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    • 제19권3호
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    • pp.111-129
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    • 1994
  • In this study, we develope a revised model as well as application of decision problem under ambiguity based on the subjectively weighted linear utility medel. Bayes'rule is used when there are ambiguous probabilities on a decision problem and test information is available. A procedure for assessing the ambiguity aversion function is also presented. Decision problem of chemical corporation is used for an illustration of the application of the subjectively weighted linear utility model using Bayesian approach. We present the optimal decisiond using newly developed model. We also perform the sensitivity analysis to assure ourselves about the conclusion we obtianed on degree of ambiguity aversion due to characterize parameter of subjectively weighted linear utility model.

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"상한육서(傷寒六書).상한일제금(傷寒一提金)"에 대한 연구(硏究) (The Study on the ${\ulcorner}SangHanIlJeGeum{\lrcorner}$)

  • 김봉현;신영일
    • 대한한의학원전학회지
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    • 제18권4호통권31호
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    • pp.145-154
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    • 2005
  • The SangHanIlJeGeum(傷寒-提金) explain the six channel of disease. The Greater Yang controls the construction and defence, and governs the exterior of the body, which serves as the body's external barrier. Accordingly, many of the signs associated with greater yang appear in the early stages of disease. The essential features of greater yang disease are a pulse that is floating, headache, stiffness and pain of the head and nape, heateffusion, and aversion to cold. The main feature of Yang brightness disease is yang hyperactivity and heat exuberance. An evil can directly enter the yang brightness channel from the exterior, but it usually passes into the channel from the greater yang. Yang brightness disease is generally characterized by generalized heat effusion, spontaneous sweating, aversion not to cold but to heat, and a pulse that is large. Distinction is made between a heat patter and a repletion pattern.

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중소기업의 정부지원형 ERP시스템 도입 영향요인에 관한 연구 (A Study on the Factors Affecting Government-Support ERP Systems Adoption for SMEs)

  • 최영은;박종필;이은곤
    • 한국정보시스템학회지:정보시스템연구
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    • 제22권4호
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    • pp.1-22
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    • 2013
  • Government initiatives are continuously being invested to nurture supporting business environment for small and medium sized enterprises (SMEs), such as government-support ERP systems project for SMEs. As such, scholars need to pay attention to SMEs can successfully adopt and manage government-support ERP systems. This study, therefore, conceptually developed and tested a research model for understanding what factors influence SMEs' intention to adopt government-support ERP systems. We obtained thirty samples from SMEs, which is organizational level, and data were analyzed using the partial least square (PLS) technique. The results of data analysis found that institutional pressure and resource dependence had positive effects on the adoption of government-support ERP systems. On the other hand, risk aversion of SMEs was found to have negative effects to adopt government-support ERP systems.

A Risk-Averse Insider and Asset Pricing in Continuous Time

  • Lim, Byung Hwa
    • Management Science and Financial Engineering
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    • 제19권1호
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    • pp.11-16
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    • 2013
  • This paper derives an equilibrium asset price when there exist three kinds of traders in financial market: a risk-averse informed trader, noise traders, and risk neutral market makers. This paper is an extended version of Kyle's (1985, Econometrica) continuous time model by introducing insider's risk aversion. We obtain not only the equilibrium asset pricing and market depth parameter but also insider's value function and optimal insider's trading strategy explicitly. The comparative static shows that the market depth (the reciprocal of market pressure) increases with time and volatility of noise traders' trading.

Analysis of the Maturity Selection on Ship Finance: A Behavioral Finance Perspective

  • Kim, Wu-Seok
    • 한국항해항만학회지
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    • 제46권2호
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    • pp.121-133
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    • 2022
  • The purpose of this study was to analyze decision-making regarding ship finance term selection from the behavioral finance perspective and to confirm if the causes and backgrounds of decision-making related to the term selection of ship finance are explicitly explained by behavioral finance theories. Additionally, through a case study, this study infers if decisions are irrational. Narrative and questionnaire responses on the selection of the ship finance period were obtained and analyzed from the behavioral finance perspective. Some shipping companies incur additional losses by choosing inappropriate ship-financing terms. This study applied behavioral finance theories, such as the certainty effect, availability heuristic, and loss aversion, to clearly explain the causes and background of such decision-making. Based on the results, it was found that behavioral finance theories impact ship financing decisions and errors related to behavioral finance can result in irrational decisions. Ship finance managers must be vigilant in preventing behavioral finance errors that can affect the decision-making term of ship finance.

이용자의 인적 속성이 이동전화 이용에 미치는 영향 (The Effect of Human Factors on the Use of Mobile Phone)

  • 배진한
    • 한국언론정보학보
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    • 제19권
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    • pp.155-184
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    • 2002
  • 이 연구는 이동전화에 대한 채널 정향, 면 대 면 커뮤니케이션의 회피 등 이용자들의 인적 속성이 이동전화 이용의 다양성, 이동전화의 적합성 거부감 그리고 이동전화를 통한 커뮤니케이션 네트워크에 미치는 영향을 살펴보려는 목적에서 출발했다. 대학생과 40대 이상의 그들의 가족들로 구성된 피조사자들을 대상으로 설문조사한 바를 분석한 결과, 응답자들은 이동전화에 대한 사회적 실재감과 친밀도가 높을수록 이동전화 서비스를 더욱 다양하게 이용하고 대인커뮤니케이션 매체로서 더욱 긍정적으로 평가하며, 이동전화에 대한 거부감도 더 작은 것으로 밝혀졌다. 아울러 면 대 면 커뮤니케이션이 원활하지 못한 사림들은 이동전화를 통한 대인커뮤니케이션 네트워크의 폭과 이동전화 이용량도 상대적으로 제한돼 있음을 알 수 있었다. 즉시성, 직접성, 이동성, 접근용이성 등 이동전화의 여러 가지 기술적 강점에도 불구하고 면 대 면 커뮤니케이션이 원만하지 못한 이용자들은 새로운 인간관계의 형성보다는 그들의 편협한 대인관계의 유지 강화에 이동전화를 주로 이용하고 있음을 이 연구결과는 보여주고 있다.

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Induction of Conditioned Taste Aversion to Korean Pine Nuts (Pinus koraiensis) Treated with Lithium Chloride in Red Squirrels (Sciurus vulgaris)

  • Kim, Eui-Kyeong;Kim, Won-Myeong;Park, Yung-Chul;Yoo, Byung-Ho;Kim, Jong-Kuk
    • Journal of Ecology and Environment
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    • 제31권4호
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    • pp.341-344
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    • 2008
  • We investigated the responses of red squirrels to pine nuts (Pinus koraiensis) treated with Lithium Chloride (LiCl) and the potential of the chemical for inducing conditioned taste aversion (CTA) in red squirrels. In red squirrels, nut feeding declined dramatically during the first 4 days after feeding with LiCl-treated nuts. The ratio of LiCl-treated nuts eaten to total nuts eaten declined from the $1^{st}$ day in LC-1 and the $2^{nd}$ day in LC-2, along with a general reduction in quantity eaten. Thus, feeding with LiCl-treated nuts induced CTA from the 2nd day after feeding, and CTA remained constant until the $4^{th}$ day, but disappeared on the $5^{th}$ day. The squirrels ate an average of $757.0{\pm}106.1mg$ (n = 2, range $682.0\sim832.0$) of LiCl before dying on the $16^{th}$ day of the study. The lethal dose of LiCl was 2.32 mg LiCl/g body weight, and the average amount of LiCl needed to induce CTA was $23.0{\pm}4.24mg$ (20 mg in LC-1 and 26 mg in LC-2).

『傷寒論』 병증(病症)과 위기(衛氣)의 관계에 대한 연구(硏究) (A study on the relationship between the symptom of Shanghanlon(傷寒論) and the defensive Gi(衛氣))

  • 방정균
    • 대한한의학원전학회지
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    • 제29권2호
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    • pp.151-163
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    • 2016
  • Objectives : Shanghanlon is based on the Hwangjenaegyeong(黃帝內經)'s theory. Therefore, the contents of the Naegyeong can interpret Shanghanlon's provision, Chengwuji(成無己) followed the same way. Therefore, I studied the relationship between the symptom of Shanghanlon and the defensive Gi(衛氣), I try to prove that the Naegyeong is the theoretical basis of Shanghanlon. Methods : Naegyeong explains that defensive Gi protects the outer parts of the body, and runs the outer parts of the body. So I will explain the spontaneous sweating(自汗) aversion to cold(惡寒) pain(痛症) fever(發熱) difficulty of urination(小便不利) using the function of defensive Gi. Results & Conclusions : The defensive Gi and the nutrient Gi(營氣) run together, if the defensive Gi is weak, can not protect the nutrient Gi. If the defensive Gi does not perform the function of inducing astringency(固攝), the symptom of spontaneous sweating appears. If aversion to cold is caused by the weak of defensive Gi, we use the treatment of warming the Yang(溫陽). If aversion to cold is caused by the defensive Gi can not run, we use the treatment of activating the Yang(通陽). If the Gi and Blood(氣血) is not feeding properly, the pain occurs. In this case, we use the treatment of activating the Yang(通陽). The fever is caused by the stagnation of defensive Gi. If the defensive Gi is weak, the symptom of difficulty of urination appears.

초등학생들의 인터넷 중독과 인터넷 기대 및 자기효능감 (Internet Addiction, Internet Expectancy, and Self-Efficacy in Elementary School Students)

  • 이인숙
    • Child Health Nursing Research
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    • 제9권4호
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    • pp.376-383
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    • 2003
  • Purpose: The purpose of this study was to investigate the status of internet addiction, internet expectancy, and self-efficacy in elementary school students. Method: The study was carried out during the period from June 16 to July 12, 2003. The subjects in the study were 397 elementary students attending four elementary schools in Chungcheongbuk-do and Kyunggi-do. Self-rating questionnaire included general characteristics, internet addiction scale, internet expectancy scale, and self-efficacy scale. Data was analyzed using SPSS/WIN10.0 by unpaired t-test and Pearson corelation coefficient. Result: In this study, the mean score of internet addiction was 20.7. Internet dangerous group was 12.6% and internet addicticted group was 0.3%. The score of internet addiction was significantly different according to parents' concern, aversion to school life and extracurricular lecture. The mean score of internet expectancy was 27.1. The score of Internet expectancy was significantly different according to popularity among friends and easiness of making friends. The mean score of self-efficacy was 55.8. The score of self-efficacy was significantly different according to conversation with parents, enforcement of parents on learning, aversion to school life, aversion to extracurricular lecture, existence of intimate friend, popularity among friends(p=.000), and easiness of making friends. Conclusion: This study showed that prevalence of internet addiction was much lower than expected, but the score of internet addiction and internet expectancy can be different according to parents' concern and relationship with friends. Therefore parents must be concerned about their children and their school lives to prevent internet addiction.

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임직원 스톡옵션의 행사패턴 및 조기행사에 영향을 미치는 요인에 관한 연구 (An Empirical Study on the Early Exercise of Employee Stock Options)

  • 김현아;정성창
    • 재무관리연구
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    • 제26권2호
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    • pp.1-32
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    • 2009
  • 본 연구는 임직원 스톡옵션의 공정가치 평가를 위해 선행되어야 할 임직원 스톡옵션의 행사패턴과 조기행사에 영향을 미치는 요인을 실증분석하였다. 선행연구에 따르면 임직원 스톡옵션은 의무보유기간이 지난 후 바로 조기행사 되는 현상이 나타나며, 이러한 행사패턴에 개인의 위험회피성향, 옵션의 행사를 통해 기대되는 수익, 기업특성, 그리고 행태적 요인 등이 영향을 미치는 것으로 주장된다. 2000년부터 2006년 사이에 부여된 총 111건의 스톡옵션에 대한 총 3,267명의 임직원이 행사한 국내 스톡옵션을 대상으로 분석한 결과, 스톡옵션은 부여 후 약 3.15년이 지나서, 의무보유기간(권리확정기간)후에는 약 0.37년이 지나서 조기행사 되는 모습을 보여주었다. 그리고 이러한 조기행사에는 개인의 위험회피성향과 스톡옵션의 행사로부터 얻는 수익, 그리고 기업의 특성요인이 영향을 미치는 것으로 나타났다.

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