• The Journal of Asian Finance, Economics and Business
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• 제8권1호
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• pp.741-750
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• 2021

The research aims to analyze the level of efficiency by grouping banks during the period 2017 - 2018 into category 1 and category 2 banks and then dividing them as Regional Development Banks (BPD) and Non-BPD Conventional Commercial Banks (BUK) within each category. The research objects are banks within the categories BPD and BUK comprised 18 BPDs and 35 BUKs. The research methodology uses 3 stages, first, using Data Envelopment Analysis (DEA) we measure the level of bank efficiency; second, using the Tobit regression model we evaluate the effect of financial performance on DEA efficiency, and third, using the Mann-Whitney test we determine whether there is a difference in the efficiency of category 1 and 2 banks. The results showed that there was a decrease in the efficiency of category 1 and 2 banks but on average, the efficiency of category 1 banks is higher than category 2 banks. The estimation results of the Tobit regression model show that only the ROA variable affects the efficiency level of category 1 banks, while category 2 banks are influenced by NPL and ROA variables. In the Mann-Whitney test, it was proven that there were differences in efficiency between BUK and BPD in category 1 and 2 banks.

• 한국경영과학회지
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• 제33권4호
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• pp.1-12
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• 2008

The study suggests an answer to the question of what determines category diversification of Internet portals in Korea. First, as external factors, competition intensity and market growth are hypothesized to have influence on the degree of category diversification. Second, an internal factor, user loyalty to portals, is hypothesized to influence negatively category diversification. The study performed empirical analysis based on weekly portal-specific panel data of eighteen internet portals in Korea during the period between 2001 and 2004. The result shows that category diversification increases as competition intensity increases, and that category diversification decreases as user loyalty increases. There was no effect of market-level growth rate on category diversification.

• 인지과학
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• 제25권3호
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• pp.233-257
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• 2014

범주기반 귀납추론은 인간이 사용하는 주요한 추론방법중 하나이다. 본 연구는 지각된 범주내 변산성이 범주기반 귀납적 일반화에 미치는 효과를 검증하기 위해 실시되었다. 실험 1에서는 범주 예시를 직접 제시하여 범주 변산성 지각을 조작하였다. 조건에 따라 범주내 변산성이 낮은 예시들 (낮은 변산 조건) 혹은 높은 예시들 (높은 변산 조건)을 범주의 예로 제시한 후, 해당 범주에 대한 귀납적 일반화 과제를 실시하였다. 그 결과 지각된 범주 변산성이 낮은 조건이 지각된 변산성이 높은 조건보다 귀납적 일반화에 대한 확신이 더 높다는 것을 확인하였다. 실험 2에서는 범주의 예시를 직접 제시하지 않고, 다양한 예시들 중 특정 범주에 속하는 예들을 참가자들이 변별하는 범주화 과제를 실시함으로써 범주 변산성을 지각하도록 한 후, 귀납추론 과제를 실시하였다. 그 결과, 실험 1과 마찬가지로 지각된 범주 변산성이 낮은 조건이 높은 조건보다 귀납적 일반화에 대한 확신이 더 강해지는 경향을 확인할 수 있었다. 본 연구의 결과는 기존 연구에서 보여준 다양성 효과와 차이점을 보이며 또한 Osherson과 동료들 (1990)이 제안한 귀납추론 모형으로는 설명하기 어렵다. 종합논의에서 범주기반 귀납추론에서 지각된 변산성 효과의 검증에 대해 간략히 논의하였다.

• 한국컴퓨터정보학회논문지
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• 제23권11호
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• pp.219-228
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• 2018

This study conducted to identify the impact of organizational factors on the characteristics of category management system, market orientation and collaboration orientation, in domestic retail industry, and also to identify the relationship between organizational factors and category management system's characteristics varies depending on the business type, retailer and supplier. To accomplish these research purposes, the study performed statistical analyses using a total of 94 samples. The results of the study can be summarized as follows. First, the organizational factors that affect market orientation of the category management system were found to be information technology infrastructure and organizational management system, and the organizational factors that affect collaborative orientation of the category management system were found to be partnerships and organizational management systems. Second, the relationship between market orientation and collaborative orientation of the category management system does not differ by the business type.

• 지적과 국토정보
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• 제49권2호
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• pp.151-167
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• 2019

한국의 현행 지목 분류 체계로는 복잡하고 다양하게 사용하는 토지의 이용 현황을 정확하게 지적공부에 등록할 수 없다. 따라서 우리나라 지목 분류 체계 개선을 위한 시사점을 도출하기 위하여 2013년에 신승우 외 4인이 '국내외 지목체계 운영 실태 연구'라는 논문을 발표하였다. 이 논문은 6개국의 '지목'과 '토지이용' 및 '토지피복'을 동일선 상에서 비교하고, 일부 사실이 아닌 내용이 서술되어 있어, 이에 관한 새로운 시각을 제시하였다. 앞으로 독일·일본·대만의 지목 분류 체계에 관한 이해를 바탕으로 합리적인 대안이 제시되길 기대하며, 향후 연구 과제로 독일과 대만의 지목 분류 체계의 변천연혁을 연구하여 한국의 지목 분류 체계 개선에 참고할 것을 제안한다.

• 경영과학
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• 제33권4호
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• pp.1-15
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• 2016

Pairs trading is an arbitrage trading strategy using statistical properties of the spreads between two assets. This study analyzes the performance of the statistical pairs trading with the pairs selected from the same category as well as from the different category in the CME and other futures markets. Empirical results show that the pairs trading performance of the same category is poor whereas that of the different category proves profitable. This implies that the spreads between different category pairs can have the mean reversion property if pairs are properly selected using co-integration test, which is contrary to the existing research results on the overseas futures pairs trading.

• 대한방사선기술학회지:방사선기술과학
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• 제43권5호
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• pp.367-374
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• 2020

The purpose of this study is to understand the infection prevention system and infection management perception of Ultrasound diagnostic room in medical institutions by sonographer's in general practitioner, semi and general hospitals. As a research method, a statistical analysis was conducted by surveying a total of 20 items in four category to determine the infection perception of sonographer's according to gender, age, working institution, and working period. As a result of infection awareness, males were in the ultrasound gel management category, women were in the transducer management category, all age groups were in the transducer management system category, and the General Practitioner, semi and general hospitals. were in the transducer management system category, and general hospitals showed a high degree of infection awareness in the category of disinfection and sterilization, and in the category of transducer management in the entire working period. In the results of the analysis of the correlation between the sub-factors of the perception of infection control in the Ultrasound diagnostic room the degree of correlation between each category showed a middle degree correlation(r>0.5) and a significant difference by category(p<.01). In conclusion, the prevention of infection in the ultrasound diagnostic room, which sonographer's firms think, was found to be the most efficient ultrasound diagnostic room infection control to implement transducer and gel management in accordance with the principles of disinfection and sterilization.

• 대기
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• 제31권2호
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• pp.143-156
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• 2021

This study investigates the impacts of land cover change due to urbanization on the Urban Heat Island Intensity (UHII) and the Heat Index (HI) over the Seoul metropolitan area using the Unified Model (UM) with the Met Office Reading Urban Surface Exchange Scheme (MORUSES) during the heat wave from 16, July to 5, August 2018. Two simulations are performed with the late 1980s land-use (EXP1980) and the late 2000s land-use (EXP2000). EXP2000 is verified using Automatic Weather Station (AWS) data from 85 points in the study area, and observation sites are classified into two categories according to the urban fraction change over 20 years; Category A is 0.2 or less increase, and Category B is 0.2 or more increase. The 1.5-m temperature and relative humidity in Category B increase by up to 1.1℃ and decreased by 7% at 1900 LST and 2000 LST, respectively. This means that the effect of the urban fraction changes is higher at night. UHII increases by up to 0.3℃ in Category A and 1.3℃ in Category B at 1900 LST. Analysis of the surface energy balance shows that the heat store for a short time during the daytime and release at nighttime with upward sensible heat flux. As a result of the HI, there is no significant difference between the two experiments during the daytime, but it increases 1.6℃ in category B during the nighttime (2200 LST). The results indicate that the urbanization increase both UHII, and HI, but the times of maximum difference between EXP1980 and EXP2000 are different.

• Asia Marketing Journal
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• 제13권4호
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• pp.1-27
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• 2012

본 연구는 심리언어학 분야의 개념 결합 이론에서 연구된 서로 다른 2가지 해석 전략(관계 해석 전략 vs. 속성 해석 전략)이 소비자가 가지고 있는 목표의 유형(주 범주 관련 목표 vs. 수식 범주 관련 목표)에 따라 융합제품에 대한 소비자 반응-즉, 융합제품 구성 범주(주 범주, 수식 범주)에 대한 신념 및 융합제품에 대한 태도-에 미치는 차별적 영향을 조사하였다. 두 차례의 실험 결과, (1) 수식 범주 관련 목표 예열 조건의 피험자들은 관계 해석 전략보다 속성 해석 전략을 채용할 때 주 범주와 수식 범주에 대해 전반적으로 모두 높은 신념을 갖는 반면, 주 범주 관련 목표 예열 조건의 피험자들은 주 범주와 수식 범주에 대한 신념에 있어서 속성 해석 전략과 관계 해석 전략 간에 차이가 없는 것으로 나타났으며, (2)수식 범주 관련 목표 예열 조건의 피험자들은 속성 해석 전략 집단과 관계 해석 전략 집단 간에 부분적으로나마 유의한 차이를 보이며 관계 해석 전략보다 속성 해석 전략을 채용할 때 융합제품에 대한 태도가 더 긍정적으로 높아지는 패턴을 갖는 반면, 주 범주 관련 목표 예열 조건의 피험자들은 융합제품에 대한 태도에 있어서 속성 해석 전략과 관계 해석 전략 간에 유의한 차이가 없는 것으로 확인되었다. 마지막으로 본 연구결과가 제시하는 이론적·관리적 시사점을 제시하고, 연구의 한계와 미래의 연구 방향에 대해서도 논의하였다.

• 대한가정학회지
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• 제39권6호
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• pp.1-14
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• 2001

The purpose of this research is to observe the differences in consumers behavior on clothes care based on their different lifestyles and different demographic characteristics. The research surveyed 267 women of 20 years old or older living in Taegu City. SPSS package was used for data analysis and frequency, percentage, average, standard deviation, factor analysis, cluster analysis, ANOVA(analysis of valiance). and Duncan test were used The results are as follows: 1. Lifestyle factors for the research object were found as 'Consumption-oriented','family-oriented', 'Economic-oriented','Leisure-oriented','conservatism-oriented'. The categories for analysis according to these factors are classified into 5 categories, category 1 is Leisure/Family-oriented group, category 2 Consumption/Leisure avoidance-oriented group, category 3 Economy/Family Apathy-oriented group, category 4 Conservatism-oriented group, and category 5 Consumption/Innovation group. Five factors for behavior on clothes care are found, including washing method, interest in detergent, environmental behavior, washing effectiveness, and management after washing 2. Behavior on clothes care based on lifestyle groups showed a meaningful difference according to the following: Interest in detergent(p<.05 level), environmental behavior(p<.01 level), and washing effectiveness(p< .01 level) 3. In demographic variations (such as age, monthly income, monthly expenditure on clothes), there is a meaningful difference in behavior on clothes care, such as interest in detergent or management after washing, according to different age groups. However, no meaningful difference is found in behavior on clothes care according to other demographic characteristics.