• Journal of Korea Society of Industrial Information Systems
• /
• v.25 no.1
• /
• pp.71-87
• /
• 2020

As startup companies are recognized as the important source of job creation and economic growth, the study is trying to find out the current situation of startup companies and their success factors in South Korea. The study analyzes the success factor of Woowa Brothers recognized as a unicorn start-up company in 2018 by using ERIS model and Start-up Developmental Stages. The ERIS model emphasizes Entrepreneurs, Resources, Industry Environment and Strategy for company performance and three developmental stages are divided into initiation, commercial and growth stages. The results indicate that the Woowa Brothers' success factor was to catch the appropriate timing in ERIS and to combine unique methods by differentiating itself from existing competitors at each stage. With analyses of success factor of Woowa Brothers as a case model, the study reveals limitations and recommends the direction of future research for producing more unicorn companies in South Korea.

• Proceedings of the Korean Information Science Society Conference
• /
• 2007.10c
• /
• pp.280-283
• /
• 2007

현재 우리나라는 이동통신 무선망 개방, 지상파 및 위성 DMB 서비스 개시 등으로 인하여 모바일 컨텐츠 시장이 본격적으로 성장하고 있으며, 그에 따른 모바일 게임시장도 크게 형성되고 있다[1]. 하지만 모바일 회사 중 몇몇 주요 회사를 제외하고는 그 경쟁이 매우 치열한 상태이다. 우리가 생각하는 모바일 게임의 성공요인은 조작 용이, 짧은 길이, 신선함 다양성, 유인 용이, 일상생활등과 연관성 등이다. 성공요인을 갖추었음에도 불구하고 이용자들이 넓게 눈을 돌리지를 못하고 있다. 그래서 우리는 이용자들에게 아주 친숙하면서도 사용에 용이를 둔 모바일 타자게임을 제작하게 되었다. 물론 기존의 타자게임과는 다른 요소들을 집어넣어서 이용자들에게 흥미와 신선함으로 다가갔다. 그리하여 모바일 게임 영역에서 일정한 기여를 할 수 있기를 기대하고 있다. 나이가 많은 이용자들을 위하여 문자의 친숙함, 익숙함을 제공하여 주는 기능도 구현하였다.

• Journal of the Korean Society of Food Culture
• /
• v.24 no.4
• /
• pp.401-412
• /
• 2009

The aims of study were to provide basic data for the internationalization of Contract Foodservice Management Companies (CFMC) and to gain a better understanding of internal push-and-pull factors through in-depth interviews. The interviewees were managers of four large CFMCs and one small-to-medium CFMC. The non-structured interview format employed an interview guide of open-ended questions. All interviews were digitally recorded and notes were taken simultaneously by an interview assistant. The narrative data analysis involved transcription, coding, classification by categories, and content analysis. Eighty-eight codes were generated from the interview analyses, and the subordinate variables uncovered included seven push factors, eight pull factors, one interactive factor, and 10 internal dynamics. These factors will be useful in further studies of the internal operations of specific CFMCs, and more generally, the practical condition of the industry.

• Korean Journal of Cognitive Science
• /
• v.30 no.3
• /
• pp.133-156
• /
• 2019

To investigate how personality test items are understood by participants, their semantic representations were explored by Latent Semantic Analysis, In this thesis, Semantic Similarity Matrix was proposed, which contains cosine similarity of semantic representations between test items and personality traits. The matrix was compared to traditional factor loading matrix. In preliminary study, semantic space was constructed from the passages describing the five traits, collected from 154 undergraduate participants. In study 1, positive correlation was observed between the factor loading matrix of Korean shorten BFI and its semantic similarity matrix. In study 2, short personality test was constructed from semantic similarity matrix, and observed that its factor loading matrix was positively correlated with the semantic similarity matrix as well. In conclusion, the results implies that the factor structure of personality test can be inferred from semantic similarity between the items and factors.

• The Journal of the Korea Contents Association
• /
• v.20 no.9
• /
• pp.224-237
• /
• 2020

This study is about motivations of using YouTube channels related to politics and its effects on political socialization. Information acquisition from the political channels of YouTube was analyzed from the perspective of uses and gratifications theory. Then, the effects of the variable factors which can influence the perception-attitude-action of political socializations were reviewed. To understand aforesaid aspects, online survey was conducted targeting male and female adults between 20 to 50-year-old. There were four factors observed for the motivations of using YouTube channels of politics, which were 'entertainment of political satire', 'mental stability', 'convenience of the media', and 'pursuit of information'. The impacts on political socialization were verified with path analysis. Among the various motivations of using YouTube channels, 'convenience of the media' and 'pursuit of information' were the factors that positively affected the acquirement of political knowledges. Political knowledges had meaningful influences on increasing people's interest in politics, and their sense of political efficacy. Increased interest in politics led to higher level of sensing political efficacy, then higher political efficacy positively motivated people to participate in politics. The theoretical and practical implications of the study were also discussed based on the findings.

• Environmental and Resource Economics Review
• /
• v.26 no.3
• /
• pp.451-472
• /
• 2017

An OPEC production announcement is a major source of supply disruption that has a significant impact on the international crude oil market. In this study, the effects of OPEC's announcements are analyzed using event study methodology. Considering the oil price volatility and structural changes in the oil price, we divide the entire period into three periods and analyze the impact of OPEC's production quota announcements, including 'cut', 'hike', and 'maintain'. As a result of the analysis, we observe that the degree and direction of abnormal returns differ according to the announcements in each period. In addition, by subdividing oil price surge and plunge period into two sections, we analyze the effect of OPEC's 'maintain' announcements. During the oil price plunge period, the amount of abnormal returns was significant. This study provides policy implications for oil trading strategies and for the impact of OPEC announcements during periods of oil price fluctuation.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.22 no.7
• /
• pp.1001-1008
• /
• 2018

In this paper, we propose an efficient location tracking scheme using wireless signals for various situations in marine environment that requires location information for many reasons such as lifesaving, accident prevention, and facility management. Our proposed location tracking scheme not only monitors user's location, but also minimizes the risk under the user's limited battery power budget. The position of a user can be obtained at base stations from the strengths of the received signals from the user. In this case, it may require to prevent the user from getting out of the predetermined safe area. For each location in the safe area, we define a risk function, which is influenced by many factors such as location accuracy, depth, flow rate, and geometry. Our proposed scheme is based on finger printing technique and aims at minimizing the average risk of each user in the safe area.

• The Journal of the Korea Contents Association
• /
• v.22 no.6
• /
• pp.145-159
• /
• 2022

The purpose of this study is to analyze the structural relationship between politicians' YouTube information service quality, politician's image and trust, and voters' social and political participation intentions. To investigate this, 306 voters were sampled through an online survey. The quality factors of the politician's YouTube information service were found to have a positive effect on the image of a politician. Among them, timeliness and reliability had a positive effect on the trust of politicians, but playfulness did not. Both the image and trust of politicians through YouTube were found to have a positive effect on voters' intention to participate in society and politics. As a result of examining the indirect effect, it was found that the image of a politician had an indirect effect on the quality of information service and the intention to participate in society and politics. This study is significant in revealing that the fact that the image and trust of politicians is a major variable that appeals to citizens' social and political participation is also applicable to YouTube.

• KDI Journal of Economic Policy
• /
• v.36 no.4
• /
• pp.33-69
• /
• 2014

We investigate determinants of fund investment flows using Korean equity investment funds. Unlike previous studies which analyzed net-flows (inflow minus outflow), we analyze fund investment inflows and outflows separately that should properly reflect investors' fund selection and redemption decision. We find similar effects of past return, fund age on net-flows to existing studies based on US market data. The analysis of determinants of inflows shows that inflows are related to past return, fund age and sales fee as net-flows. In contrast, outflows are found to behave quite differently from inflows. Apparently, asymmetry exists between fund investment inflows and outflows at the Korean fund selection market. Specifically, high past returns increase fund investment inflows while increase, rather than decrease, fund outflows. Moreover, 'convexity' is detected both in inflows and outflows: higher past returns accelerate outflows as well as inflows. Effects of sales fee also differ between inflows and outflows. In the 'affiliated' fund sample, sales fee is negatively related to inflows while positively related to outflows. In the 'unaffiliated' fund sample, sales fee is positively related to inflows, but no significant relationship exists with outflows. Empirical findings of this paper imply that the rational investor's fund selection view cannot provide a consistent explanation of the Korean fund selection market. In particular, the positive and convex relationship between past returns and fund outflows is inconsistent with the rational investor view. The fact that investor's fund investment appears to display 'disposition effect', which has been reported by studies of individual investors' stock investment behaviour suggests that the behavioral finance view should be a part of explanation for the Korean fund selection market. In addition, the strikingly different patterns between the 'affiliated' funds and the 'unaffiliated' funds, imply that brokers' incentive structure is another prevailing factor for fund investment flows.

• The Journal of Society for e-Business Studies
• /
• v.25 no.4
• /
• pp.77-109
• /
• 2020

In this paper, we build a gradient Boosting model to predict government SME R&D subsidy, select features of high importance, and measure the impact of each features to the predicted subsidy using PDP and SHAP value. Unlike previous empirical researches, we focus on the effect of the R&D subsidy distribution pattern to the incentive of the firms participating subsidy competition. We used the firm data constructed by KISTEP linking government R&D subsidy record with financial statements provided by NICE, and applied a Gradient Boosting model to predict R&D subsidy. We found that firms with higher R&D performance and larger R&D investment tend to have higher R&D subsidies, but firms with higher operation profit or total asset turnover rate tend to have lower R&D subsidies. Our results suggest that current government R&D subsidy distribution pattern provides incentive to improve R&D project performance, but not business performance.