• 제목/요약/키워드: Causal Relations

검색결과 214건 처리시간 0.026초

인과적 마코프 조건과 비결정론적 세계

  • 이영의
    • 논리연구
    • /
    • 제8권1호
    • /
    • pp.47-67
    • /
    • 2005
  • 베이즈망은 탐구 공간을 구성하는 변수들 사이에 성립하는 확률적 관계를 이용하여 그 변수들 사이에 성립된다고 가정되는 인과 관계를 추론하는데 이용된다. 베이즈망에 관한 철학적 논쟁의 대상은 특정한 변수들의 확률적 독립성을 가정하는 인과적 마코프 조건이다. 베이즈망 이론에 대한 강력한 비판자인 카트라이트는 인과적 마코프 조건이 비결정적 세계에서는 성립될 수 없기 때문에 인과적 추리에 대한 타당한 원리가 될 수 없다고 주장한다. 이글의 목적은 인과적 마코프 조건이 인과적 추리에 대한 타당한 원리가 될 수 없다는 카트라이트의 비판이 타당한가를 검토하는 것이다. 나는 인과적 사건들의 연쇄를 허용하는 연속모델은 카트라이트의 비판을 벗어날 수 있다고 주장한다.

  • PDF

우선주가격 및 수익률 결정요인에 관한 연구 (Determinants of the Prices and Returns of Preferred Stocks)

  • 김산;원재환;원영웅
    • 아태비즈니스연구
    • /
    • 제11권2호
    • /
    • pp.159-172
    • /
    • 2020
  • Purpose - The purpose of this study is to investigate economic variables which have impact on the prices and returns of preferred stocks and to provide investors, underwriters, and policy makers with information regarding correlations and causal relations between them. Design/methodology/approach - This study collected 98 monthly data from Korea Exchange and Bank of Korea. The Granger causal relation analysis, unit-root test and the multiple regression analysis were hired in order to analyze the data. Findings - First, our study derives the economic variables affecting the prices and returns of preferred stocks and their implications, while previous studies focused mainly on the differential characteristics and related economic factors between common and preferred stocks. Empirical results show that the significant variables influencing the prices and returns of preffered stocks are consumer sentiment index, consumer price index, industrial production index, KOSPI volatility index, and exchange rate between Korean won and US dollar. Second, consumer sentiment index, consumer price index, and industrial production index have significant casual relations with the returns of preferred stocks, providing market participants with important information regarding investment in preferred stocks. Research implications or Originality - This study is different from previous studies in that preferred stocks themselves are investigated rather than the gap between common stocks and preferred stocks. In addition, we derive the major macro variables affecting the prices and returns of preferred stocks and find some useful causal relations between the macro variables and returns of preferred stocks. These findings give important implications to market participants, including stock investors, underwriters, and policy makers.

가족체계의 기능성, 부모 및 자녀요인, 부모-자녀관계가 청소년 자녀의 심리적 복지수준에 미치는 영향 - 청소년 자녀의 우울정도와 관련변인간의 인과관계를 중심으로 - (The Effect of Family System Functiong, Parent & Child Factor and Parent-child Relation on Adolescent's Psychological Well-being: Focusing on the Causal Relations of Adolescedent's Depression and Related Variables)

  • 최규련
    • 대한가정학회지
    • /
    • 제37권2호
    • /
    • pp.99-112
    • /
    • 1999
  • The purpose of this study were to investigate the effect of Family System Functioning, Parent & Child Factor and Parent-child Relation on Adolescent's Psychological Well-being (Family Life Satisfaction, Self-Esteem and Depression), and the causal relations of Adolescedent's Depression and Related Variables. The subjects were 532 triads of adolescents and their parents living in Seoul area, Korea. The survey methods were questionaires included FACES n, PAC Inventory, family life satisfactin scale, KMSS, Self-Esteem Inventory and CES-D, etc. Data were analyzed by frequencies, percentages, mean, standard deviation, paired t - test, Pearson's correlation , multiple regression, and path analysis The major findings were as follows: Family system functionings had a indirect effect through adolescents'family life satisfaction, self-esteem on adolescents'depression. The degree of openness of parent-adolescent communication and father's marital satisfaction had a indirect effect through adolescents'family life satisfaction on adolescents'depression. Adolescents'satisfaction with physical self, peer-relations and school life had a indirect effect through adolescents'self-esteem on their depression. Also adolescents'satisfaction with peer-relations and their fathers'depression had a direct effect on their depression.

  • PDF

주거환경이 고교생의 사회성에 미치는 영향 (The effects of the residential variables on high school students' social personality)

  • 노영남
    • 대한가정학회지
    • /
    • 제23권4호
    • /
    • pp.109-121
    • /
    • 1985
  • This is a study to grasp the correlation between high school students' social persenality and residential environment. THe samples were 197 boys and 200 girls who were attending the high schools located in Pusan. Social personality which contains family relations and social relations was measured by the standardized test of K.T.C. The path-analysis was used to make the causal relations of the collected data clear. RESULTS : 1. Feeling on the residential environment underwent the most potent influence by the floor space per person and social personality by feeling on the residential environment. 2. For the boy-students, the family relations andsocial relations was affected by the case of renthouse, the family relations by the case of noisy residence, and the social relations by the case of no-private room. 3. For the girl-students, the cases of higher stories and having private room made the family relations unharmonious, the cases of narrow floor space per person and the single house made the social relations troublesome, too.

  • PDF

The Peace Effects of Inter-Korean Trade and the Political-Economic Separation: Analysis of the Reciprocal Effects of Inter-Korean Relations and Inter-Korean Trade

  • KYOOCHUL KIM
    • KDI Journal of Economic Policy
    • /
    • 제45권3호
    • /
    • pp.1-24
    • /
    • 2023
  • This paper empirically examines the relationship between inter-Korean trade and inter-Korean relations over the past three decades. It asks two questions: (1) Does inter-Korean trade contribute to improved inter-Korean relations and peace on the Korean Peninsula? (2) Does improved inter-Korean relations lead to increased inter-Korean trade? The study employs a time-series causal relationship analysis methodology to answer these questions. The findings show that during the progressive government's reign, inter-Korean trade was not impacted by inter-Korean relations. This is due to the implementation of a political-economic separation policy towards North Korea. Moreover, the increase in general trade and processing on commission did enhance inter-Korean relations, reflecting the "inclusive policy" aimed at achieving peace on the Korean Peninsula through inter-Korean trade. In contrast, during the conservative government's reign, inter-Korean relations had a direct impact on inter-Korean trade, with deteriorating relations leading to a significant decrease in trade. This was due to the implementation of North Korea policies that were linked to politics and the economy.

의학의 뉴컴 문제와 인과적 결정 이론 (Medical Newcomb Problem and Causal Decision Theory)

  • 여영서
    • 논리연구
    • /
    • 제12권2호
    • /
    • pp.89-114
    • /
    • 2009
  • 우리는 여러 종류의 인과적 믿음을 지니고 있으며, 인과적 믿음은 합리적인 결정을 내리는 과정에서 중요한 역할을 한다. 이 직관을 발전시킨 인과적 결정 이론은 행위자의 결정이 합리적이라는 설명을 제시하기 위해서 그 행위자의 결정이 의존하는 인과적 믿음을 명확하게 밝히는 것이 필요하다고 주장한다. 그럴 필요가 없다는 입장의 증거적 결정 이론은 뉴컴 문제를 통해 반박된다. 그러나 뉴컴 문제의 다양한 형태 중에서 의학의 뉴컴 문제가 증거적 결정 이론을 반박하는 데에 가장 성공적이라는 일반적 판단은 잘못이라는 점이 본 논문에서 논증된다. 본 논문은 의학의 뉴컴 문제는 인과 관계를 명료하게 진술함으로써 오히려 증거적 결정 이론을 반박하기 어려워진다는 점을 지적한다. 이 과정에서 본 논문은 증거적 결정 이론과 인과적 결정 이론 사이의 차이점을 드러내고, 합리적 결정 과정에서 인과적 믿음이 정확하게 어떤 역할을 하는지를 밝힌다.

  • PDF

해상화물운송에 있어서 선박의 감항성(勘航性)과 인과관계(因果關係)에 관한 법리적(法理的) 접근(接近) (A Juridical Approach to Causal Relations between Ocean Freight Shipping and Seaworthiness of Vessel)

  • 박창식;김청열
    • 한국항만경제학회지
    • /
    • 제22권2호
    • /
    • pp.83-108
    • /
    • 2006
  • Regarding the ocean carrier's responsibility for damage indemnification, both his or her duty of care and reason of legal exemption have been considered important. The International Convention for the Unification of Certain Rules relating to Bills of Lading also provides that the ocean carrier indemnifies for the loss or damage of freight on the basis of the principle of liability with fault. In other words, the carrier assumes responsibility only for the loss or damage of freight which is under his or her control and whose safety must be carefully maintained by him or her. The carrier's duty of care which is required for freight safety in accordance with the convention is associated with two themes, seaworthiness of vessel and freight itself. To make ocean freight shipping effective necessities the seaworthiness of the ship that will conduct the shipping service under its responsibility. This will ultimately lead to making the service impressive to the shipper as freight owner. Thus the purpose of this study is to contribute to more reasonable shipping by the shipowner or the carrier who needs to ensure seaworthiness of vessel, and prevent unseaworthiness that may be incurred in accordance with freight characteristics. For the purpose, this paper reviewed the meaning of seaworthiness of vessel through a juridical approach to its causal relationship with ocean freight shipping.

  • PDF

창의적 행동특성과 놀이성, 상호작용적 또래놀이, 교사-유아관계 간의 구조분석 (Analysis of Causal Relationships among Playfulness, Interactive Peer Play, Teacher-Child Relations and Creative Characteristics)

  • 황윤세
    • 아동학회지
    • /
    • 제29권6호
    • /
    • pp.245-257
    • /
    • 2008
  • Subjects in this study on causal relationships among playfulness, interactive peer play, teacher-child relationships, and creative characteristics were 286 3- to 5-year-old children. Instruments were the Rating Scale for Creative Characteristic of Preschoolers (Lee et al., 2002), Children's Playfulness Scale (Bemett, 1990), Penn Interactive Peer Play Scale (Fantuzzo et al., 1995), and Student Teacher Relationship Scale (Pianta, 1991). Results showed : (1) significant relationships among social spontaneous, cognitive spontaneous and children's humor in sub-areas of children's playfulness, friendliness in sub-areas of teacher-child relationships, play interaction in sub-areas of interactive peer play and creative characteristics. (2) Children's creative characteristics directly influenced social spontaneous, cognitive spontaneous and children's humor in sub-areas of children's playfulness and of play interaction in sub-areas of interactive peer play.

  • PDF

양육효능감의 매개 역할 : 양육행동의 인과관계 모형 (The Mediational Role of Korean Mothers' Parenting Self-Efficacy : The Causal Relations Model of Parenting Behaviors)

  • 최형성
    • 아동학회지
    • /
    • 제26권6호
    • /
    • pp.351-365
    • /
    • 2005
  • This study investigated causal relations between mother's parenting, self-efficacy, perceived social support, stress, and parenting behaviors, Child's temperament, and the mediational role of mother's parenting self-efficacy. Participants were 404 Korean children and their mothers living in Seoul, Korea. Results showed that mother's parenting self-efficacy was positively related to mother's Warmth-Acceptance, social support, and child's temperament. On the other hand, mother's parenting self-efficacy was negatively related to. mother's Rejection-Restriction, mother's Permissiveness-Nonintervention, and mother's stress. Structural equation modeling indicated that mother's parenting self-efficacy was a significant mediator of the relation between mother's perceived social support and stress, child's temperament, and mother's parenting behaviors including Warmth-Acceptance, Rejection-Restriction and Permissiveness-Nonintervention Child's temperament had an indirect effect on mother's Rejection-Restriction and Permissiveness Nonintervention.

  • PDF

유아의 사회적 적응과 관련변인간의 인과관계 -양육스트레스원, 사회적 지지, 양육행동을 중심으로- (The Causal Relations of Children's Social Adjustment and Related Variables: Focusing on the Parenting Stressor, Social Support and Parenting Behaviors)

  • 유우영
    • 대한가정학회지
    • /
    • 제36권10호
    • /
    • pp.65-78
    • /
    • 1998
  • The purpose of this study was to analyze a causal relations of preschool aged children's social adjustment, socio-demographic variables, parenting stressor, social support and parenting behaviors. The major findings of this study were as follow; (1) Parenting stressor was the first contribution factor on preschool aged children's adjustment. (2) Parenting stressor had a indirect effect through social suport, limit setting, encouragement of independence behavior as well as a direct effect on preschool aged children's social adjustment. (3) Preschool aged children's social adjustment was affected by social support indirectly through parenting behaviors. (4) Encouragement of independent behavior, limit setting behavior had a direct effect on preschool aged children's social adjustment.

  • PDF