• Korean Management Science Review
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• v.26 no.2
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• pp.19-35
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• 2009

This paper investigated performance of the Markowitz's portfolio selection model with applications to Korean stock market. We chose Samsung-Group-Funds and KOSPI index for performance comparison with the Markowitz's portfolio selection model. For the most recent one and a half year period between March 2007 and September 2008, KOSPI index almost remained the same with only 0.1% change, Samsung-Group-Funds showed 20.54% return, and Markowitz's model, which is composed of the same 17 Samsung group stocks, achieved 52% return. We performed sensitivity analysis on the duration of financial data and the frequency of portfolio change in order to maximize the return of portfolio. In conclusion, according to our empirical research results with Samsung-Group-Funds, investment by Markowitz's model, which periodically changes portfolio by using nonlinear programming with only financial data, outperformed investment by the fund managers who possess rich experiences on stock trading and actively change portfolio by the minute-by-minute market news and business information.

• Journal of the Korean Society of Costume
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• v.54 no.2
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• pp.1-9
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• 2004

This research aims at the development of Korean fashion design for the world market, which combines the western beauty and Korean tradition into the product design focusing on the styling concept. Through the example-analysis of structural elements which form Europe and Korean fashions, the styling concepts of functional change, beauty-combination, and tradition-conservation. are derived. The results are as follows : 1. Functionality needs to be improved by the structural change and the development of new materials from the traditional materials. 2. Beauty should come from the combination of natural patterns and western-spatial allocation, as well as from the front combination of western-beauty. 3. Tradition needs to be kept as Korean beauty and representation skills in the colors, accessaries, and in the spatial design. The styling concept for Korean fashion design in this research is related to the visual structural elements, and is not expanded to the styling concept of Korean image and/or feeling. Therefore future researches may follow on these un-expanded points. and also may continue the wide comparison between the Korean fashion design and oriental image fashion in Europe.

• Journal of Korea Technology Innovation Society
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• v.8 no.2
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• pp.809-831
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• 2005

This paper explores the difference between domestic new ventures(DNV) and international new ventures (INV). New ventures pursue business opportunities in their target markets armed with experienced founding team, distinctive competitive strategies, and different entry time at foreign market. As a result, INVs were founded by larger number of founding team and more experienced in international business. Also INVs enter earlier global market and pursue business opportunities than DNVs. in In terms of competitive strategy, INVs highlight continuous quality improvement and diverse customers compared to DNVs focused on intellectual property rights. INVs get higher profitabilities in financial performance. Finally, this paper suggests some managerial implications for new venture to explore business opportunities in the global markets.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.3B
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• pp.231-239
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• 2011

This paper reviews the recent theoretical and empirical studies on the European countries that the bill and keep settlement between mobile operators is superior to the financial settlement like CPNP from the perspectives of social welfare and fare competition in market. Besides these the recent studies, considering the change of mobile wholesale market in Korea, the necessity to introduce the bill and keep settlement as an alternative for the current CPNP as well as policy implication is examined.

• KDI Journal of Economic Policy
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• v.37 no.1
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• pp.44-72
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• 2015

This study evaluates the economic impact of product innovation by using firm-level data from the Community Innovation Survey conducted in Japan. It accounts for possible technological spillover from innovation activities and examines the extent to which new-to-market product innovations contribute to firm performance. Econometric analysis using a simultaneous equation model reveals that new-to-market product innovation is likely to increase a firm's sales without cannibalizing those of existing products and generate more technological spillover to other firms. Moreover, such innovation is more likely to emerge from firms collaborating with academic institutions. The paper concludes by discussing policy implications of these findings as well as points to the importance of cross-country comparison between Korea and Japan.

• Journal of the Korea Safety Management & Science
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• v.18 no.4
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• pp.123-130
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• 2016

In global competition composition changing rapidly, domestic industry faces changes and logistics industry, one of service industries, is recognized as an important factor for development of domestic industry and national economy. At this moment, companies must suggest differentiated service, strategies, etc. so as to create and maintain competitive advantages in comparison with other companies. The requirements preannounce big movement of third party logistics market. Therefore, government, logistics industry and academic world have suggested lots of studies so as to vitalized third party logistics market. The purposes of this research are to verify that innovative changes are necessary to be existing in fierce competition of third party logistics market and analyze the effects of third party logistics on logistics outcomes so as to form continuous relations with shipper.

• Management & Information Systems Review
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• v.30 no.3
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• pp.27-56
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• 2011

At this point in time when the percentage of foreign consumers as well as domestic consumers are being increased in domestic open market users due to the recent interest and promotion on the open market, the purposes of this study are as follows. First, the relationship between open market brand personality, satisfaction and brand loyalty will be clarified targeting all Korean consumers and Chinese consumers using domestic open market. Second, whether there is difference in the effect of domestic open market brand personality on customer satisfaction and brand loyalty between Korean consumers and Chinese consumers will be compared. The results are as follows. First, as a result of testing the study hypothesis targeting the open market users, in other words targeting all Korean consumers and Chinese consumers, only the ability among brand personality dimensions did not have positive effect on the satisfaction toward open market. Other than that, it could be confirmed that the reliability, sincerity and familiarity, etc are important influence factors in forming satisfaction toward open market. Next, as a result of testing whether there is difference in the effect of domestic open market brand personality on customer satisfaction and brand loyalty between Korean consumers and Chinese consumers, it was shown as having difference. In other words, the Korean consumers were shown as not having positive significant effect in the relationship between the ability among brand personality and satisfaction toward open market while all other brand personality dimensions were shown as having positive effect on the satisfaction toward open market. It could be found that if the satisfaction toward open market is high, the brand loyalty toward open market also gets high.

• International Area Studies Review
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• v.18 no.3
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• pp.231-248
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• 2014

The relationship between market structure and social welfare outcomes has received considerable critical attention in the field of competition policy research. In particular, it is necessary to study in greater depth the impact of market power on social welfare in the telecommunications industry, which is highly likely to form a monopolistic market structure. This is because, when market powers are concentrated on few upper carriers, there are negative effects on social welfare due to an excess of profits. Against this background, the present study investigates the relationship between the market structure of the mobile communications industry (the level of market power) and social welfare outcomes (the retail rate cut) through an international comparison. The results demonstrate that both the market structure and competition status of the Korean market have had significant gaps in global trends. It also points out that the monopolistic market structure (when the leading provider has more than 50% of the market share) has significantly negative effects on consumer welfare (the retail price cut). In addition, the findings of this study suggest that the direction of competition policy should focus on not only improving market concentration(HHI), but also on mitigating the monopoly of power of a dominant operator.

• Korean Journal of Human Ecology
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• v.17 no.4
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• pp.785-796
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• 2008

The Open-Market internet shopping malls has rapidly been growing over the past few years. Thus, this study compares Meta-Mall and Open-Market, as well as evaluates image factors of the internet shopping mall in order to verify different levels of influence on customer satisfaction and revisit intentions. The subject of stud was made for students enrolled in colleges in the Busan area, using this Data collection method. Data were gathered using a questionnaire and through personal interviews from a sampling made from May 1 to May 8, 2008. The final 337 accomplished questionnaire forms were used for the subsequent analysis. The results of the substantial analysis are as follows. First, the following factors affect the image of internet shopping malls: assortment of goods and information service, site design, convenience, reliability of goods and information, and customer service. In Meta-Mall, these same factors, except customer service, were found to influence customer satisfaction, while in Open-Market, all the five factors were found to influence customer satisfaction. In Open-Market, convenience and reliability of goods and information had especially high levels of influence on customer satisfaction. Second, customer satisfaction with Internet shopping malls was found to influence the intentions of the customers to make a revisit. The result of the study shows that the factors of shopping mall image between Meta-Mall and Open-Market are perceived differently by their customers, and differences were found in the levels of their influence on customer satisfaction.

• The Journal of Fisheries Business Administration
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• v.46 no.3
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• pp.143-161
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• 2015

This study presents a comparative analysis on mackerel distribution process and price formation process, and investigation of price and margin between traditional markets and Large-scale discount store distribution channel. Through this, the study investigated distribution efficiency of each channel, and examined whether a difference of distribution efficiency leads to a difference of performance through the investigation of a difference of function and role between members of a wholesale market and vendor of Large scale discount store. The following are the results of this study. As a consequence of investigating supply and sum by distribution channel of mackerel, it appeared that mackerels shipped from port market are distributed into 9 consumption sites(Wholesale market, Large scale discount store, Institutional Food Service, etc.). In the comparison of distribution efficiency between traditional retail store and Large scale discount store 52.0% margin is formed in traditional retail store distribution channel and 43.1% margin is formed in Large scale discount store, and a distribution cost rate consists of 19.4% cost in a traditional retail store for fishery products and 18.1% cost in a Large-scale discount store. To analyze a difference of performance, the study examine a difference of role and function between vendor and Wholesale market company, wholesaler and middleman. Wholesale market company and middleman of wholesale market for consumer have slightly high or similar score in collection function, sorting function, evaluation function and financial function which are traditional and original. However, it was confirmed that vendor has a better score in other functions, that is, newly-demanded functions(ex : market frontier function, product development function, Integral Distribution Function, etc.).