• Journal of Intelligence and Information Systems
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• v.16 no.2
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• pp.1-17
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• 2010

Association rules among product items by association analysis suggest sales effect among products. These are useful for marketing strategies such as cross-selling and product display etc. However, if we evaluate more practical product values reflecting cross-selling effects, they will be also more useful for the decisions of companies such as product item selection for product assortment and profit maximization etc. This study proposes product value evaluation models with the concept of effective value based on single-item association chain and itemset association chain. In addition to that, we performed experiments with transaction data related to clothing of an online shopping mall in Korea to show the performances of our models. In result, we confirmed that some items increased in effective values compared with their pure values while the others decreased in effective values.

• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.34-46
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• 2021

In the domestic data exchanging market, unreasonable pricing of purchase data is consistently mentioned as a major obstacle in data trading. This is a problem caused by the inability to properly evaluate the value of data products due to lack of product information and experience in using them. In order to activate trading, the data exchanges need to provide information that allows consumers to comprehensively judge the value of data products in addition to prices. The cost-based, income-based, and market-based methods, which are mainly applied to data valuation, are insufficient as data valuation methods to stimulate trading and distribution because only price information, a result of valuation from a supplier's point of view, can be shared with consumers. This study aims to develop a measurable valuation method that allows data trading stakeholders (exchanges, suppliers, and consumers) to judge and share the value of data products from a common perspective. To this end, we identified the value drivers of data products, which are considered important in overseas data exchanges and related research, and derived an evaluation method that can quantitatively measure each value driver. In addition, evaluation criteria in the form of a rating table were developed using data products for transactions, and a value evaluation index was developed through stratification analysis (AHP) to enable relative value comparison. As a result of applying the evaluation criteria to actual data products, it was found that the evaluation values were differentiated according to the characteristics of individual data products, so it could be used as a relative value comparison tool.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.387-390
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• 2009

인터넷의 생활화를 통해 우리 생활 패턴이 크게 변화하였다. 특히 상품 구매의 경우 온라인 시장의 성장과 상품 정보의 범람으로 소비자들의 구매 의사결정은 더욱 어려워졌다. 따라서 효율적인 상품 구매 의사결정을 위해서는 소셜 네트워크 분석(Social Network Analysis)을 기반으로 한 더 가치있는 정보를 선별하여 제공해 줄 수 있는 서비스가 필요하다. 따라서 본 논문에서는 온라인 소셜 네트워크 요소 분석을 통해 상품 후기에 대한 개인화된 가치 측정값 정보를 제공함으로써 소비자의 보다 효율적인 상품 구매가 가능하도록 도와주는 '가치 측정 알고리즘'을 제안한다.

• The Journal of Information Systems
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• v.19 no.3
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• pp.127-147
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• 2010

전자상거래의 급속한 발전 속에서 기업들은 세계적 시장에서 경쟁력을 지니기 위해 전자상거래를 이용하여 상품판매, 서비스 제공, 고객과 소통하고자 한다. 그러나, 기존의 연구들은 TAM 모형을 통한 상호관계나 선행관계에만 초점을 맞추고 있기 때문에 좀 더 확장한 모형이 필요하다. 본 연구에서는 상품정보와 서비스 제공수준은 소비자 행동에 영향을 미치는 중요한 요인이지만 연구가 충분치 못한 실정이다. 따라서 본 연구의 목적은 첫째, 상품정보제공수준과 서비스제공수준에 따른 소비자 태도 차이를 조망하고자 한다. 둘째, 기존에 연구가 미약하였던 상품정보제공수준 및 서비스제공수준과 기존에 인지된 가치, 인지된 위험, 구매의도와 구전의도간의 상호인과관계를 조망하고자 한다. 본 연구의 결과는 다음과 같다. 첫째, 상품정보제공수준과 서비스제공수준에 따라 소비자 태도 차이에는 차이가 있었다. 둘째, 상품정보제공수준과 서비스제공수준에 따라 소비자들이 인지된 가치, 인지된 위험, 구매의도, 구전효과에는 차이가 있었다. 셋째, 변수들간에 상호인과관계와 선행관계가 존재하였다. 상품정보제공수준과 서비스 제공수준은 인지된 가치와 인지된 위험에 각각 직접적인 영향을 미쳤다. 뿐만 아니라, 인지된 가치는 인지된 위험, 구매의도, 구전효과에, 인지된 위험은 구매의도와 구전효과에 직접적인 영향을 나타내었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1238-1245
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• 2012

The main purpose of this study was to identify the current awareness and preference on the promotions of products in Korean professional baseball teams. For this study, the subjects were randomly selected where they have experienced purchasing any products in the Korean professional baseball stadium. Totally, 520 subjects were asked to answer the questionnaire relevant to the current awareness and preference of promotion of products. There were 11 questions for the current awareness and 14 questions for the preference on the promotion of products. The data gathered was determined within a frequency analysis, an independent sample T-test and one-way ANOVA tests. The results were discussed when the p-value were lest than .05. There were a couple of results found throughout this study. Firstly, there were no significant differences of the current awareness between gender. Secondly, there were significant differences of the preference on the promotion between age(p<.05). Especially, there were significant differences on the value of products and price between 20's, 30's and 40's groups. Thirdly, there were significant differences of the preference on the promotion between level of earing per year statistically(p<.05). In addition, there were significant differences on the price of products between 2000-2500 million won, 2500-3000 million won and 4000 million won groups. Consequently, the product promotion by the Korean professional baseball teams has to be more variety and structured.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.285-294
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• 2012

Under conditions of increasing environmental uncertainty, firms' risk management become important. This study examines the impact of foreign currency derivative usage on firm value using 3,004 Korean non-financial firms from 2002 to 2007. The results showed that there was no significant relationship between foreign currency derivative usage and firm value for the whole period and from 2002 to 2004 when exchange rate was relatively less volatile. But form 2005 to 2007 when exchange rate was volatile, foreign currency derivative usage gave significant negative impact on firm value, whereas when contract value was used, the relatinship was significantly positive. These results might be come from the characteristics of contract value and fair value of foreign currency derivatives. increased firm value when contract value was used as foreign currency derivative usage measure. But when fair value was used, there was no significance. For control variables, major shareholders ownership and foreign blockholders ownership was positively related with firm value.

• The Korean Journal of Financial Management
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• v.15 no.2
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• pp.55-80
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• 1998

영국의 베어링사, 미국의 오렌지 카운티, 미국의 프록터앤 갬블사 등 최근의 유명한 대형금융사고에는 파생금융상품이 관련되어 있었다. 최근 국내에서도 파생금융상품과 관련된 대형금융사고가 발생하였다. SK증권은 $\ulcorner$다이아몬드 펀드$\lrcorner$라는 역외펀드를 설립한 후, JP Morgan과 파생금융상품을 거래하였는데 최근의 동남아 통화위기로 인하여 SK증권은 커다란 손실을 본 것이다. 본고에서는 거래된 파생금융상품에 대한 정밀한 분석을 통하여 SK증권과 JP Morgan은 서로 엔화 및 바트화에 대한 외환옵션을 거래한 것과 동일함을 보인다. 또한 본고에서는 거래된 파생금융상품에 대하여 계약체결시점의 적정가치를 계산한다. 이러한 분석은 파생상품의 위험관리를 위한 가장 중요한 첫 단계가 될 것이다. 분석결과를 요약하면 다음과 같다. SK증권은 JP Morgan으로부터 5,300만 달러를 차입하면서 약 5,800만 달러의 가치가 있는 상환액을 지급하기로 하였으며 또한 약 8,540만 달러의 가치가 있는 인도네시아 루피아화 연동채권을 8,700만 달러를 지급하고 매입하였다 따라서 파생금융상품계약에 따른 전체적인 손실은 약 660만 달러에 이르는 것으로 분석되었다.

• International Commerce and Information Review
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• v.14 no.4
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• pp.177-201
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• 2012

This paper explored consumers' LoHAS purchasing behavior and factors influencing the behavior, including' self-construal, and LoHAS values, attitudes and behavior. First, this study investigated how self-construal affected LoHAS values, and then analyzed how LoHAS values influenced LoHAS attitude and behavior. Last, this study is to examine how the relationships among LoHAS values, LoHAS attitude and behavior are moderated by consumers' gender. We administerd a survey with undergraduates attending a university located in the metropolitan area. The analysis results indicate that interdependent self-construal affects LoHAS values. According to the analysis, both environmentalism and sustainability of LoHAS values also affect LoHAS attitude, and then the attitude influences LoHAS behavior. In addition, the results show that the relationships among LoHAS values, LoHAS attitude and behavior are not moderated by consumers' gender. This study shows the casual relationship between variables including self-construal, LoHAS values, attitude and behavior. In particular, this finding confirms that self-construal as one of psychological factors affects LoHAS consumers' values and behavior. Finally, based in the findings of this study, theoretical contribution and managerial implications are discussed.

• Information Systems Review
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• v.13 no.3
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• pp.123-139
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• 2011

This paper researches the value of domestic telecommunication bundle products. Customers evaluate each telecommunication products differently according to their attributes. The attributes affecting the customer value of telecommunication bundling can be categorized in 3 ones as follows; corporate image, service feature, and service price. Also authors analyze the difference of importancy that customers consider when they evaluate each products, and propose the optimal scenario for bundling. In conclusion, other two companies A, C excluding B should invest more resources into the portion that strengthen the attributes of company image, and service feature to upgrade their 'corporate image', and 'service feature'. According to 6-scenarios analysis on the bundle products, the QPS expansion of company A was the most advantageous position, but if companies B, C expand DPS made use of their strengths, they can prevent from decreasing additivity rapidly with sequential scenario. The above results show that one company may have equable power in each area, but if another company having strengths in special areas makes up for its weakness and differentiates gradually it can contribute to strengthen its competitiveness. This contributed much more theoretical and practical than the existing researches. Supposing that additivity index evaluated by consumers can be changed by efforts of companies, this scenario planning is the result of study showing that the investment and publicity of each company have to be considered as its characteristic of each product at the same time.

• 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