• Title/Summary/Keyword: Empirical Comparative

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Comparative Evaluation of Albedo Distribution according to Administrative Boundary Using MODIS Products (MODIS 영상을 이용한 행정구역별 알베도 분포 비교평가)

  • Kim, Ki-Youl;Um, Jung-Sup
    • Journal of Environmental Impact Assessment
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    • v.21 no.2
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    • pp.265-277
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    • 2012
  • This paper is primarily intended to present quantitative evidences for land surface albedo difference among seven metropolitan cites in South Korea. An empirical study for experimental sites was conducted to confirm how a standard MODerate Resolution Imaging Spectroradiometer (MODIS) instrument offers the viable method of measuring and comparing the regional heterogeneity of albedo among administrative districts. The metropolitan cities like Seoul located in dense building environment do result in much lower albedo than those exposed in much more sub-urban surface (e.g KwangJoo). These experimental results indicate that an urban surface such as building and road is a crucial explanatory variable for lower albedo. It is confirmed that the urban surface such as building and road could be employed as a proxy of the lower albedo burden in the metropolitan area. It is anticipated that this research output could be used as a valuable reference to confirm the potential of introducing the new concept of "administrative districts specific albedo management" to support more scientific and objective decision-making in the process of GHG (Greenhouse Gas) reduction project.

A comparative analysis of Cartier's and Tiffany&Co.'s strategies for brand story videos on their YouTube brand channels (까르띠에와 티파니의 유튜브 브랜드 채널을 통한 브랜드 스토리 동영상 전략 비교 분석 연구)

  • Hong, Jiyoun
    • The Research Journal of the Costume Culture
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    • v.24 no.4
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    • pp.498-510
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    • 2016
  • As social media are emerging as essential communication channels for corporates in all areas, luxury jewelry brands have implemented enhanced strategies for brand story videos by creating brand channels on YouTube. In this study, a comparative analysis of the videos made available by Cartier and Tiffany&Co. on their YouTube Brand Channels was conducted, with the aim of identifying their strategic characteristics. The research method encompassed, both literature review and empirical investigations. A quantitative analysis was conducted by means of the 'HEART' model, a type of luxury jewelry brand story, and the following common strategic elements were identified. First, in their brand story videos both brands focus primarily on 'theme'. Second, 'relationship' and 'artisanship' are emphasized in addition to 'theme'. Third, the videos incorporate high level aesthetics to stimulate the fantasies and dreams of their audiences. The strategic differences between the brands are as follows. : First, 'artisanship' is given the greatest significance along with 'theme' in Cartier videos, while 'relationship' has prime significance in Tiffany&Co. videos. Second, a difference between a European approach and an American approach towards luxury brand building is evident, with Cartier hosting exhibitions while Tiffany&Co. provides gala videos instead.

Comparative analysis on uniform designs of female flight attendant among low cost carriers in South Korea and Asian region (한국과 아시아 지역 저가 항공사 여승무원의 유니폼 디자인 비교 분석)

  • Kim, Sun Young
    • The Research Journal of the Costume Culture
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    • v.23 no.2
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    • pp.176-192
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    • 2015
  • This work aims at analyzing the comparative feature about female flight attendant uniform designs of Korean and Asian region low cost carriers and providing some basic materials for development of these airline companies. As a research method, examinations were carried out on attendant's uniform both theoretically and empirically. Comparison of uniforms was made among the five Korean carriers and ten typical Asian carriers for empirical research. Results showed the followings. First, all Korean low cost carriers were characterized as formal style except Jin Air. Unlike this, Asian low cost carriers appeared as diverse including formal, semi formal, and casual styles with a uniquely differentiated image. Second, all carriers applied their own symbolic color to their uniform. Third, logo or symbol was adopted as a pattern on scarf in the two Korean companies but it didn't take effect practically. For those Asian carriers, embroidery was used on jacket, jumper and collar. They utilized even a merchandising character to put emphasis on airline image. Fourth, diverse petty items with a decorative effect were used in the case of Korean low cost carriers. In the changing period of uniform, nothing much was changed and remained almost the same as before. Those in the Asian region were characterized with the smallest number of items and the preclusion of decorative add-ons on uniform.

A Comparative Study on the Factors Affecting User Satisfaction of Open Markets in Korea and China : Based on Hofstede's Cultural Dimensions Theory (한국과 중국의 오픈마켓 사용자의 만족에 영향을 미치는 요인에 대한 비교 연구 : Hofstede의 문화차원 이론을 중심으로)

  • Yan, Guo;Ahn, Hyunchul
    • Journal of Information Technology Applications and Management
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    • v.20 no.2
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    • pp.193-210
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    • 2013
  • China has emerged as the world's factory since the economic reform in 1987, and the Chinese economy has been growing at a rapid pace. Now, China is considered as one of the biggest markets in the world. Thus, many Korean IT service companies including open market operators have interests in expanding their business into China. However, to be successful in Chinese online shopping market, Korean open market operators should check the cultural differences between the online shoppers in Korea and China at first, Under this background, this study proposes the factors affecting user satisfaction in open market services based on the revised Delone and McLean model. Then, it investigates the differences in the effects of these factors across Korea and China. For empirical analysis, we collected the survey data from open market users in both countries, and applied multiple regression analysis to the data. As a result, we found significant differences between Korean and Chinese open market users. Also, we found that most of these differences could be explained using Hofstede's Cultural Dimensions theory. The findings of this paper imply that Korean and Chinese users may respond differently to IT services, though Korea and China are geographically close and share a similar cultural background.

A Comparative Study on Productive Welfare in the Three Worlds of Welfare Capitalism (세 가지 복지자본주의에서의 생산적 복지, 그 성적표 : 복지국가의 경제적 효과와 평등달성의 차이에 관한 체제론적 비교연구)

  • Ahn, Sang-Hoon
    • Korean Journal of Social Welfare
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    • v.49
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    • pp.162-189
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    • 2002
  • In general, every welfare state is to be productive. If not, the welfare state itself cannot be sustainable because resource for the development of welfare only comes from a sound level of economic development However, how to mix welfare and production differs from country to country. This article tackles this phenomenon as a starting point. Granted, contemporary studies of comparative welfare state often starts from the theory of welfare regime which has been suggested by Esping-Andersen. This article also regards the framework as an analytic tool to elaborate upon the concept of productive welfare and to categorize different types of conception of productive welfare. In liberal regime, the concept is so narrowly interpreted that they emphasize micro-efficiency of specific welfare programs. On the contrary, the other two regime types recognize the concept of productive welfare as relatively wide. Therefore, conservative and social democratic regimes underscore macro-efficiency of the welfare state as a whole. Empirical analyses of this article explores each regime's success and failure in terms of achieving fundamental goals of the welfare state, i.e. economic development and enhancement of equality. A series of evidence show that liberal regime fails in achieving both goals, while the other two regimes seem to be relatively successful. In conclusion, it may be pointed out that current tendency of neo-liberalism and anti-welfarism in Korea should be overcome, which must be the prime task of social welfare academia of this country.

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Global Value Chain Formation and Human Capital: Case of Korea and ASEAN

  • Li, Jia-En;Choi, Young-Jun
    • Journal of Korea Trade
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    • v.25 no.6
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    • pp.126-142
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    • 2021
  • Purpose - This study discusses the effects of human capital in the formation of GVC linkages. We also investigate GVC intensity between Korea and ASEAN. Design/methodology - To solve the doubling-counting problem in evaluating comparative advantage, RCA has been re-computed using domestic value-added (henceforth RCA_VA) at the country-sector level instead of value of trade. The impact of human capital on GVC intensity was empirically analyzed by establishing a panel data set with four industries (ISIC Rev. 4) in eight ASEAN countries from 2005 to 2015 from OECD-TiVA and WDI. Findings - The empirical results show that human capital has a negative effect on GVC intensity in the agriculture and manufacture industries, while it has a positive effect in the service and information industries. The results do not mean that low human capital is a barrier and inefficient to GVC linkages. Low Value-added activities may be more profitable to some emerging countries. These findings suggest that it is important to accurately identify the competitive elements to increase gains from trade under the GVC. Also, it shows that comparative advantages can be misled by an RCA index evaluated in trade volume under the GVC. Originality/value - This study highlights the importance of human capital as a factor for the efficient formation of Global Value Chain (GVC). This study has different from the literature in analyzing the role of human capital in formation of linkage of the GVC. And we clarify the changing patterns of trade by removing the double-counting problem under the GVC.

A Comparative Study on the Influencing Factors of Continuous Use Intention of Korean and Chinese SNS Users: Focused on the Technology Readiness and Acceptance Model (한국과 중국 SNS 이용자의 지속적 이용의도의 영향요인에 관한 비교 연구: 확장된 기술준비도수용모형을 중심으로)

  • Yoon, Sung-Joon;Oh, Jong-Chul
    • Asia-Pacific Journal of Business
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    • v.9 no.4
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    • pp.181-199
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    • 2018
  • The purpose of this study is to verify the extended technology readiness and acceptance model according to the characteristics of technology for the continuous use motive of SNS users. In particular, we conducted a comparative study on the differences in technology readiness and acceptance model between countries through the empirical analysis of the users of SNS in Korea and China with different technological and cultural environments. The results of this study are as follows; First, Positive technology readiness index has a positive effect on performance expectancy, effort expectancy, social influence, and facilitating conditions, which are variables of UTAUT. Positive technology readiness also has a positive effect on Enjoyment, which is added in this study. Second, negative technology readiness index has negative effect on performance expectancy and social influence, which are variables of UTAUT. In addition, negative technology readiness index has not a significant effect on enjoyment, which was added in this study. Finally, the relationship between technology readiness index, motivation for technology acceptance, and continuously intention to use has a partially different influence on the Korean and Chinese users. Based on the results of this study, this study suggested academic implications and practical implications.

Economic and Non-economic Determinants of Environmental Sustainability in the Long Run: Evidence from G20 Economies

  • Yin, Zihui;Choi, Chang Hwan;Ko, Jung O
    • Journal of Korea Trade
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    • v.26 no.1
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    • pp.1-19
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    • 2022
  • Purpose - This paper analyzes the economic and non-economic factors that contribute to environmental sustainability by reducing CO2 emissions, based on G20 panel data. Design/methodology - We conduct a comparative analysis of advanced and developing economies during 1995-2016. To examine the impact, an environmental Kuznets curve (EKC) model was employed, incorporating additional explanatory variables such as internet use, renewable energy, and services trade. Findings - The empirical findings show the existence of an inverted U-shaped EKC phenomenon between GDP per capita and CO2 emissions in G20 economies, with the turning point at a per capita GDP level of US$ 38,340. Moreover, an inverted U-shape relation exists between internet use and CO2 emissions, with the turning point at a 44% internet use rate. The comparative analysis show that the inverted U-shape curve only exits in advanced economies, with turning points of US$ 42,356 per capita GDP and 27% internet use rate, respectively. Renewable energy and services trade have a greater negative impact on CO2 emissions in advanced economies than in developing economies. Originality/value - Renewable energy and services trade have a greater negative impact on CO2 emissions in advanced economies than in developing economies. Overall, the results suggest the role of internet use, renewable energy and services trade in sustainable development in G20 countries.

A Comparative Analysis of Travelers' Online Reviews among China, USA, and South Korea using Sentiment Analysis in the Era of the COVID-19 Pandemic (코로나19 팬데믹 상황에서 감성분석을 이용한 미국, 중국, 한국 여행자의 온라인 리뷰 비교 분석)

  • Hong, Junwoo;Hong, Taeho
    • Journal of Information Technology Services
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    • v.20 no.5
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    • pp.159-176
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    • 2021
  • In this study, we performed a comparative analysis of the sentiment value for the tourists in USA, China, and Korea on the COVID19 pandemic era to explore and find out the features of the tourists by using online reviews. We collected a total of 243,826 online hotel reviews for metropolitan city and vacation spot in the three countries to compare the features between the business and the vacation trips. We collected the online reviews into the tow groups from Jan. 1, 2019 to Nov. 31, 2019 for before COVID19 pandemic and from Apr. 1, 2020 to Deb 28, 2021 for during COVID19. Online reviews were categorized into 6 dimensions using LDA model. Sentiment analysis were presented for 6 dimensions by utilizing a lexicon base. We proposed an approach to analyzing the importance of each attribute by applying 6-dimensional sentiment values to conjoint analysis. Our empirical analysis showed that the proposed approach could explore and find out the changed features of travelers during the COVID19 pandemic.

Bilateral Trade and Productivity Differences in a Ricardo-Cournot Model

  • Song, E. Young
    • Journal of Korea Trade
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    • v.25 no.4
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    • pp.88-107
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    • 2021
  • Purpose - Using a model that highlights Ricardian comparative advantage and Cournot competition, I derive theoretical predictions on how bilateral measures of trade intensity, specialization, and intra-industry are interrelated, and how Ricardian productivity differences affect these measures. We test the predictions using trade and production data, and confirm them. Design/methodology - A simple two-country general equilibrium model is constructed to derive theory-based bilateral indexes. We then test the relationships among them using panel data for 35 countries and 14 industries between 1996 and 2008. Findings - Bilateral trade intensity is increasing in specialization, as in the classical trade theory, and in intra-industry trade, as in the new trade theory. However, productivity differences positively affect specialization, and negatively affect intra-industry trade. These effects cancel each other; thus productivity differences have little impact on trade intensity. Originality/value - This paper provides a comprehensive conceptual framework for understanding the relationship among trade intensity, specialization, intra-industry trade, and productivity differences. We derive theory-consistent measures of specialization, intra-industry trade, and productivity differences. Moreover, we reevaluate the empirical relevance of these variables for the study of gravity equations. This paper is also an effort to capture oligopolistic competition in a general equilibrium framework, interests in which recently resurged.