• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.1
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• pp.131-136
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• 2014

In this paper, we develop a fashion products demand forecasting algorithm using ARIMA model and Wavelet Neural Networks model. To show effectiveness of the proposed method, we analyzed characteristics of time-series data collected in "H" company during 2008-2012 and then performed the proposed method through various analyses. As noted in experimental results, the performance of three types model such as ARIMA, Wavelet Neural Networks and ARIMA + Wavelet Neural Networks show 5.179%, 4.553%, and 4.448.% with respect to MAPE(Mean Absolute Percentage Error), respectively. Thus, it is noted that the proposed method can be used to predict fashion products demand for efficient of operation.

• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.46-49
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• 2011

획기적인 아이디어나 상품 개발은 인간 생활 방식을 혁명적으로 바꾸기도 하고 다양한 상품과 결합하여 보다 빠르게 진화하기도 한다. 불과 몇 년 전에 개발된 스마트폰은 기존의 전화 기능에 게임, 음악, 인터넷 등 컴퓨터의 기능이 탑재되어 현대인의 생활에 없어서는 안 될 필수 아이템이 되었다. 필자가 개발한 First Guitar로 명명된 스마트폰용 기타 어플리케이션 (Guitar Application)은 현재 시장에서 판매되고 있는 여타 프로그램과 달리, 실제 기타 연주의 느낌을 구현하고자 개발되었다. 본 논문은 First Guitar 개발 과정에서 논의하고 고려했던 다양한 기능과 사용자 중심의 디자인에 대한 연구이다.

• Journal of the Economic Geographical Society of Korea
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• v.10 no.3
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• pp.245-262
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• 2007

This paper aims at analyzing the characteristics of performance and asset management system of listed property trusts(LPT) in Australia, and elucidating the implications for Korean real estate indirect investment market. The main results of this paper are as follows. Firstly, LPT have a leading position among the real estate indirect investment systems in Australia, through the rapid growth of market capitalization. Secondly, LPT achieved superior risk adjustment performance than other financial products, and had valid portfolio diversification effect. Thirdly, many LPT have used stapled securities structure as a asset management system, and stapled LPT revealed superior risk adjustment performance than unit LPT. Finally, implications and policy measures such as using the stapled structure and activating the development activities were examined for the development of Korean real estate indirect investment market.

• Journal of Korea Fair Competition Federation
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• no.142
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• pp.68-79
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• 2009

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.2
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• pp.207-214
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• 2009

This paper provides the analysis of economic theories about bundling in telecommunications service. First, the negative aspect of bundling is discussed. Second, the competitively neutral aspect of bundling which is counter response of negative effect is analyzed. Third, some variables affecting the bundling is investigated and the corresponding effect of bundling is discussed. The bundling can increase the social welfare under some circumstance while it sometimes decreases economic efficiency by detering the entry of competitive firms. Finally, regulatory approaches on bundling such as the criteria of bundling provision, the requirement of equal access, the discounting scheme ad a price control, ex anti regulation vs. ex post regulation, and the criteria of predatory pricing are provided.

• Journal of Korea Fair Competition Federation
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• no.97
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• pp.61-64
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• 2003

일반적으로 기업결합사건에서 사실확인의 단계에서 이루어지는 관련시장의 획적은 경쟁제한성이라는 위법성판단 여부를 좌우할수 있는 중요한 문제로서 다루어진다. 하지만 이러한 관련시장의 확정은 동시에 기업결합심사에 있어서 난해한 부분이기도 하다. 그런 점에서 본 고에서는 기업결합사건에서 시장획정이 문제된 비교적 최근의 사건인 1997년 연방항소법원 판결을 소개하기로 한다. 본 건은 미 법무부가 기업결합안에 대해 제소한 사건을 미 연방 제11항소법원이 기각한 판결에 관한 것이다. 이 사건에서 미 법무부는 시장내의 3사업자들 가운데 2사업자간에 이루어진 기업결합안을 클레이튼법 위반으로 문제삼았는데, 항소법원은 법무부가 관련시장을 적절히 획정하지 못했다는 이유로 본 건을 기각하였다. 법무부는 관련시장의 규모를 확인하지 못하였으며 따라서 경쟁상품들을 적절히 고려하지 못하였다는 것이 그 이유였다.

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.119-126
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• 2021

Recently OTT video service has grown rapidly and has a negative impact on the growth of pay-TV subscribers. Consequently the substitution of OTT services for pay-TV services will begin. This study explores OTT usage patterns, dividing into three sectors (OTT service use, OTT usage volume, and paid-OTT service use), by considering users' demographice factors, smart device ownership, pay-TV subscription, and bundle service use, by employing the Mediapanel dataset. The results showed that age, income, smartTV usage, market size, cable/satellite subscribers, TV VOD expenses, movie VOD expenses, and mobile bundle use are associated with OTT service use. The results also showed that age, household sizes, tablePC usgage, cable/satellite subscribers, TV VOD expenses, other VOD expenses, and unlimited data plans are associated with OTT usage volume. Lastly the results showed that age, gender, income, tabletPC usage, cable subscribers, other VOD expenses, mobile bundle usage, and unlimited data plans are associated with paid-OTT service use.

• Archives of design research
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• v.16 no.3
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• pp.421-430
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• 2003

During the past years private brand sales in supermarkets grew more rapidly then manufacturer brands. Store brand products account for more than one-fifth of total volume sales in the United States and are outpacing national brand growth. The most compelling reason for this increased presence in the market is their price differential with national brands. A general tendency of store brand sales in Korea also is on the increase over the years. On the other hand there is something yet to learn in the field of private label. The research has resulted in consumers changing their perception of store brand products from one of low quality to one of premium quality. Reduced price is not the only answer for store brand to be survive. The new marketing approach should include better packaging improved quality and specific advertising and promotional programs designed to increase customer awareness and sales of store brand products.

• KOMUNHWA
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• no.59
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• pp.112-147
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• 2002

This article is contrived to analyse the present situation and social practices of culture goods in Gyungju, historical city. For this, I collected Materials from agencies and organizations concerning of production, distribution, consumption of culture go

• Knowledge Management Research
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• v.23 no.4
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• pp.177-205
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• 2022

Small- and medium-sized enterprises (SMEs) have strong incentives to engage in open innovation to enhance innovation efficiency and effectiveness due to their 'liability of smallness.' Previous research examined the performance effects of various open innovation practices, but whether coupled open innovation practices positively affect SMEs' firm performance is somewhat controversial. To resolve the issue, this study examined the effects of coupled open innovation activities on SMEs' firm performance using Heckman's two stage model to control endogeneity of the firms' self-selection bias in open innovation engagement. This study used the Korean Innovation Survey (KIS) 2020 collected by the Science and Technology Policy Institute (STEPI), and tested the effects of SMEs' coupled open innovation activities, R&D and non-R&D cooperation, on their innovative and financial performance indicators. The results showed that SMEs' R&D cooperation positively affects the new-to-market (NTM) product innovation only. Moreover, SMEs' non-R&D cooperation has positive effects on the product innovation, business process innovation, new-to-the-market product innovation, and new-to-firm (NTF) product innovation. However, the results showed that both R&D and non-R&D innovation cooperation activities have no significant effects on SMEs' financial performance indicators. This study contributes to research on SMEs' open innovation and provides insights for SMEs' managers and policymakers.