• Title/Summary/Keyword: 인과 모형 분석

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An Analysis of the Impacts of FDI Types on CO2 Emissions - Focus on Scale Effects and Technique Effects - (FDI 유형별 CO2 배출량에 미치는 영향 분석 - 규모효과와 기술효과를 중심으로 -)

  • Hwang, Yun-Seop;Park, Junghoon;Lee, Sang Whi
    • International Commerce and Information Review
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    • v.17 no.3
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    • pp.379-402
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    • 2015
  • The purpose of this study is to determine whether there is a significant difference in impacts decomposed into scale effects and technique effects on $CO_2$ emissions between Greenfield FDI and M&A FDI flows into Korean manufacturing sectors, ultimately leading to clarify the relationship between FDI and environmental pollution. To this end, the research constructed a simultaneous model to analyze coincidental relationship of influence and interactions between each variable. Archival data, spanning the 15 years period from 1995 to 2009, is industry-level panel data on 13 Korean manufacturing sectors, and it is empirically analyzed with three-stage least squares (3SLS) method. Key findings can be summarized into two parts. First of all, Greenfield FDI has a greater impact on increasing industrial gross output, resulting in more $CO_2$ emissions than M&A FDI through scale effects. Secondly, technique effects of FDI have a bigger impact on $CO_2$ emissions than scale effects, implying that this inflow of FDI into Korea contributes positively to the reduction of $CO_2$ emissions. These findings are expected to play a meaningful role in establishing FDI policies with consideration of the environment by giving the implication that different incentives for each FDI type should be considered to maximize the effect of environmental protection.

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A study on categories of questions when holding counselling on learning math in regards to grounded theoretical approaches (근거이론적 접근에 따른 수학학습 상담 발문 유형에 대한 연구)

  • Ko, Ho Kyoung;Kim, Dong Won;Lee, Hwan Chul;Choi, Tae Young
    • Journal of the Korean School Mathematics Society
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    • v.17 no.1
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    • pp.73-92
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    • 2014
  • This study was performed in part with the task to find measures to improve the defining characteristics of feelings, value, interest, self-efficacy, and others aspects in regards to learning math among elementary and middle school students. For this study, it was essential to understand the appropriate questions that are needed to be asked during a consultation at a math clinic, for students that are having a hard time learning math. As a method for performing this study, the content of scheduled counseling over 2 years from a math clinic were collected and the questions that were given and taken were analyzed in order to figure out the types of questions needed in order to effectively examine students that are facing difficulty with learning math. The analysis was performed using Grounded theory analysis by Strauss & Corbin(1998) and went through the process of open coding, axial coding, and selective coding. For the paradigm in the categorical analysis stage, 'attitude towards learning math' was set as the casual condition, 'feelings towards learning math' was set as the contextual condition, 'confidence in one's ability to learn math' was set as the phenomenon, 'individual tendencies when learning math' was set as the intervening condition, 'self-management of learning math' was set as the action/interaction strategy, and 'method of learning' was set as the consequence. Through this, the questions that appeared during counseling were linked into categories and subcategories. Through this process, 81 concepts were deducted, which were grouped into 31 categories. I believe that this data can be used as grounded theory for standardization of consultation in clinics.

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A Study on Flood Discharge Capacity and Hydraulic Characteristic of Labyrinth Weir as a Side-Channel Spillway (래버린스 웨어를 적용한 측수로형 여수로의 홍수배제능력 및 수리학적 특성 연구)

  • Park, Sae-Hoon;Moon, Young-Il
    • Journal of Korea Water Resources Association
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    • v.41 no.1
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    • pp.65-74
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    • 2008
  • The small and medium sized dams have the fill dam type of a lot of occasions, which are often weak in cases of major floods. For this reason, although a countermeasure is in great need, due to the importance of the facilities and financial situations, no direct safety measures have been taken. In this study, in order to minimize construction expenditure for practical safety measures in cases of major floods, the overflow section of spillway has been analyzed focusing on how the overflow capacity will increase in the case of partially rebuilding a part of the overflow section of spillway favorable for hydraulic conditions. The Labyrinth weir and movable weir was chosen for reconstruction models of the overflow section. Moreover, for analyzing the after-effects of the reconstruction, a small scale dam was temporarily chosen for various experiments such as the hydraulic model testing and the three dimension numerical evaluation through the use of Flow-3D.

Analysis of the Efficiency of Korea's Logistics Industry: Application of Data Envelopment Analysis-Analytic Network Process (DEA-ANP) (우리나라 물류산업의 효율성 분석: DEA-ANP(Data Envelopment Analysis-Analytic Network Process)의 적용)

  • Ha, Heon-Gu;Choe, A-Yeong
    • Journal of Korean Society of Transportation
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    • v.25 no.3
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    • pp.55-63
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    • 2007
  • This paper analyzes the relative efficiency of Korea's logistics industry with the DEA-ANP model from 2003 to 2005. To measure the efficiency, this paper used the numbers of employees, fixed assets. total capital. and operating costs as input factors and sales amounts and net incomes as output factors. The average efficiency score of the entire logistics industry is 0.175, so most logistics companies in Korea should improve their current inefficiencies. The industry with the highest efficiency score is marine transportation. with an average three-year efficiency score of 0.3692. In terms of sales and high efficiency. most of the highest-ranked companies belong to the marine transportation industry, so marine transportation has the most influence on raising the efficiency score of Korea's logistics industry. To improve the inefficiency of inputs that exists overall in the logistics industry it is necessary to control excessive numbers of employees. To improve the amount of sales, it is necessary to make a policy of satisfying various logistics demands, continuous investments, and attracting foreign logistics demand: such things will help strengthen the international competitiveness of Korea's logistics industry.

The Influential Relationships among the Image, Service Quality, Consumption Value and Customer Emotion in Middle-low Price Chain Hotels (중저가 체인 호텔 이미지가 서비스 품질과 소비가치 및 고객감정에 미치는 영향)

  • Lim, Jong-Woo;Cho, Yong-Bum
    • Culinary science and hospitality research
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    • v.22 no.7
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    • pp.47-57
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    • 2016
  • This study was conducted to verify the relationships among the image of middle-low price chain hotels, service quality, consumption value, and customer emotion by using the AMOS 22.0 statistic package program. Confirmatory factor analysis and structural equation modeling methods employed for identifying the formulated hypothesis model. According to results, first, it is seen that the image of middle-low price chain hotels has positive effect on the service quality. Second, the image of middle-low price chain hotels has positive effect on the consumption value, and the consumption value has positive effect on the service quality. Third, the service quality does not have positive effect on the customer emotion. Last, the image of middle-low price chain hotels has positive effect on the customer emotion. In this study, we attempted to establish the management strategy device of middle-low price chain hotels by analyzing how the image of middle-low price chain hotels affect the service quality, consumption value, and customer emotion. As a result, when it comes to the service quality according to the image of middle-low price chain hotels, the conviction, in other words, the belief of the hotel staffs was the biggest one. In addition, when it comes to the consumption value according to the image of middle-low price chain hotels, the functional value, the kind service of the hotel staffs was seen as the highest satisfaction. More practical and theoretical implications for developing marketing strategy in context of middle-low price chain hotels has been suggested in conclusions.

An Improved Monte-Carlo Simulation Method for Typhoon Risk Assessment in Korea (개선(改善)된 Monte-Carlo 시뮬레이션 방법(方法)에 의한 한국(韓國)의 태풍위험도(颱風危險度) 분석(分析))

  • Cho, Hyo Nam;Chang, Dong Il;Cha, Cheol Jun
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.7 no.4
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    • pp.159-165
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    • 1987
  • This study proposes an operational method of typhoon risk assessments in Korea, using Statistical analysis and probabilistic description of typhoon at a site. Two alternative simulation and fitting methods are discussed to predict the probabilistic typhoon wind speeds by indirect methods. A Commonly used indirect method is Russell's procedure, which generates about 1,000 Simulation data for typhoon winds, statistically evaluate the base-line distribution, and then fits the results to the Weibull distribution based on probabilistic description of climatological Characteristics and Wind field model of typhoon at a site. However, an alternative procedure proposed in this Paper simulates extreme typhoon wind data of about 150~200 years and directly fits the generated data to the Weibull distribution. The computational results show that the proposed simulation method is more economical and reasonable for typhoon risk-assessment based on the indirect method. And using the proposed indirect method, the probabilistic design wind speed for transmission towers in typhoon-prone region along the South-Western coast is investigated.

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An analysis on Structure Equation Model of Convergent Influence on Academic Burnout of Health Major Students in Studying for TOEIC (보건계열 대학생의 토익 학업소진에 미치는 융복합적인 요인에 관한 구조방정식 모형 분석)

  • Hong, Soomi;Kim, Seung-Hee;Bae, Sang-Yun
    • Journal of Digital Convergence
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    • v.15 no.7
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    • pp.329-342
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    • 2017
  • This study investigates convergent influence on Self Factors(SF), Stress Factors(STF), Resilience & Control Factors(RCF), Test Anxiety(TA), Learning Flow(LF) and academic burnout among Health College Students in TOEIC class(HCST). The survey was administered to 291 HCST from 1 college located in J area during the period from April 3, 2017 to April 14, 2017. The structured self-administered questionaries were used. With the analysis of covariance structure, we could confirm relationship among the six factors such as SF, STF, RCF, TA, LF and academic burnout. The results of the study indicate that the efforts, to manage these factors, are required to decrease the academic burnout of HCST. Squared multiple correlations, which explain the academic burnout related with the stress from economic pressure and job seeking, test anxiety, learning flow and self factors, were 98.8%. The results are expected to be useful for the development of TOEIC learning curriculum and course to decrease the academic burnout of HCST. In the following study, the analysis about additional factors of influence on academic burnout will be needed.

Effects of Children's Individual Variables and Maternal Parenting on Children's Playfulness (유아의 개인적 요인과 어머니의 양육행동이 유아의 놀이성에 미치는 영향)

  • Kang, Ji Hye;Lee, Kyung Nim
    • Korean Journal of Childcare and Education
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    • v.7 no.2
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    • pp.159-180
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    • 2011
  • This study examined the effects of children's temperament, self-control and maternal parenting on children's playfulness. The subjects of this study were 288 3-, 4- and 5- years old children and their mothers. The collected data were analyzed by correlations and pathway analysis. The results were as follows: First, children's sex, sociability temperament, self-control and maternal authoritarian parenting directly affected children's playfulness. Children's sex indirectly affected children's playfulness through children's activity level and self-control. Children's sociability and emotionality temperament indirectly affected children's playfulness through maternal authoritarian parenting. Maternal authoritarian parenting indirectly children's playfulness affected through children's self-control. Second, the most important variable predicting children's playfulness was maternal authoritarian parenting.

A Confirmatory Factor Analysis on the Awareness of Terrorism Scale in Korea (테러인식 척도의 확인적요인분석)

  • Chung, Jong-Woon;Kwack, Dae-Gyung;Sim, Hye-In
    • Korean Security Journal
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    • no.61
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    • pp.235-254
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    • 2019
  • This study identifies a factor structure regarding the criterion of terror awareness by using confirmatory factor analysis. The study provides information whether the criterion fits in the analysis of terror awareness in Korea or not. Data of 176 public officials working at the National Assembly collected in 「Study on the Improvement of Security in the National Assembly Building」(Choi O-Ho and others, 2016) was used in the analysis. Study results showed the fit statistics of 3 questions regarding concern in terror, 5 questions regarding cognition of terror occurrence, 3 questions regarding countermeasure of terror, and 3 questions regarding equipments against terror satisfied the standard. Also, standard regression coefficient exceeded the standard and was shown to be fit. Concern in terror, as a latent variable, was below the standard value of average variance extracted. However, focused validity was secured by obtaining other values fit. This study proceeded distinct validation test to supplement data. The test results showed that the criterion level was fit. Thus, further survey should include questions that are appropriate to measure the awareness of terror based not only on theories and previous studies but also on questions of terror awareness tested in this study. Such development in surveys will support the means of data measurement.

A Study on the Acceptance Factors of the Introduction of a Smart IoT Technology for Well-being Companion Animal (반려동물 웰빙을 위한 스마트 IoT 기술 도입 수용요인에 관한 연구)

  • Kang, Sung Kwang;Kim, Hoontae;Ji, Yong Gu;Lee, Jeongyoung
    • The Journal of Society for e-Business Studies
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    • v.24 no.2
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    • pp.143-163
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    • 2019
  • The purpose of this study is to identify acceptance factors and influencing factors of respondents' adoption of smart IoT technology to companion animal health based on the integrated technology acceptance model. Based on the previous studies, we constructed the hypotheses by defining the technical factors, social factors, control variables, and mediating variables (UTAUT), and set the hypotheses between the independent variables of each factor and the dependent intention. A research model was designed to verify the relationship between variables. We developed questionnaires on the items and verified them through data collected from 494 people. As a result, product design, quality of service, product performance, and quality service of technological factors had a significant effects on performance expectancy and effort expectancy. However, product safety, product function awareness, and product price did not significantly affect performance expectancy and effort expectancy. Social influence had significant effects on cognitive effect, welfare system, and welfare facilities. In conclusion, the comparative analysis of technical factors and social factors showed that social factors have more significant effects on welfare systems and facilities.