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- 저자 : 하승인(SeungYin Ha) (검색결과 5 건)
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하승인(Ha, SeungYin),유영범(Yoo, Yiung Bum),정예숙(Jung, Ye Suk) 한국서비스경영학회 2017 한국서비스경영학회 학술대회 Vol.2017 No.11
Online content service providers are using recommendation systems as part of their efforts to increase sales. The recommendation system identifies and recommends the customer "s preferred content, and it helps the customer to increase the satisfaction and the loyalty of the service by using the content suitable for the user" s taste without searching the content. In this study, we propose an algorithm for selecting recommendation contents for individual customers by using the Movie Lens data. The algorithms used in the existing recommendation systems have the disadvantage that they can not utilize contents that do not exist in the data since the important words are selected from the given data and the contents are selected based thereon. On the other hand, the Latent Dirichlet Allocation algorithm is that can utilize potential keywords that are not in the data.
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일반화 가법 모형을 이용한 정책금융 수혜규모가 중소기 업 경영성과에 미치는 효과성 연구
하승인 ( Seungyin Ha ),장명균 ( Myoung Gyun Jang ),이군희 ( Gunhee Lee ) 한국중소기업학회 2017 기업가정신과 벤처연구 Vol.20 No.2
The aims of this study is to analyze the effectiveness of firms financial status quo and the scale of financial support on SMEs overall performance. We have gathered the financial guarantee data from 1998 to 2013, provided by Korea Credit Guarantee Fund (KODIT), to analyze the effectiveness of Financial policy. To classify both financial status quo and scale of financial support, we utilized the following variables; Interest Coverage Ratio (ICR) and newly guaranteed amount ratio. To take the measurement of the overall performance, we employed profitability, growth ratio and activity index. To minimize the effect of repeated financial support (redundancy benefits), firms were selected based on the following criteria: firms that receive no financial support prior to implementing such policy over the last 3 years and no new financial support over the last 2 years. Results suggest that firms with higher ICR and large newly guaranteed amount influence on financial performance in terms of profitability index. Firms with lower ICR and large scale financial support showed a better performance compare to firms with small-scale financial support. Firms with large-scale financial support, irrespective of ICR inclined to have better performance to those of small-scale financial support in terms of growth index. For activity index, however, firms with large scale support led to higher performance in the short term. In turn, our analysis presents objective perspective with respect to the effectiveness of financial policy through credit guarantee on overall performance of SMEs. This study, therefore, implies that well-balanced SMEs supporting policy may lead to better directions.
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민재형(Jae H. Min),김범석(Bumseok Kim),하승인(Seungyin Ha) 한국경영과학회 2015 經營 科學 Vol.32 No.1
We examine the relationship between firms" environmental (E), social (S), and governance (G) factors, with their financial performance in order to provide an empirical rationale for CSV (creating shared value) pursuing both of firms’ profitability and CSR (corporate social responsibility). The financial performance is classified into four aspects such as profitability, stability, efficiency, and cash-flow, and each of these aspects is measured by two financial ratios respectively. To measure the firms’ ESG performance, we employ the published performance grades by the Korea Corporate Governance Service for a three year span, from 2011 to 2013. Total of eight regression analyses are performed. The results show that firms" non-financial performance in general has statistically significant positive relationships with return on assets, return on net sales, and cash-flow from operating activities ratio, while it has negative relationships with net working capital ratio, asset turnover ratio, and cash-flow from investing activities ratio. It has no significant relationships with debt ratio and equity turnover ratio. The results imply that firms" non-financial performance may have a negative impact on some financial performance such as liquidity and efficiency in a short term, but it would eventually improve the firms’ profitability and cash-generating ability, which provides an empirical evidence for the concept of CSV, and motivates the firms to participate in social contribution activities without sacrificing their profitability for their respective sustainablity management.
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지속가능경영을 위한 기업의 환경적, 사회적, 지배구조적 요인이 주가수익률 및 기업 가치에 미치는 영향
민재형(Jae H. Min),김범석(Bumseok Kim),하승인(Seungyin Ha) 한국경영과학회 2014 한국경영과학회지 Vol.39 No.4
This study empirically examines the impact of firms’ environmental (E), social (S), and governancial (G) factors on their short-term and long-term values. To measure firms’ non-financial performance, we use ESG performance grades published by KCGS (Korea Corporate Governance Service). We employ stock log return as the proxy of each firm’s short-term value, and Tobin"s Q ratio as that of its long-term value. From a series of regression analyses, we find each of the ESG factors generally has a negative impact on stock return while it has a positive impact on the Tobin"s Q ratio. These results imply that firms’ effort for enhancing their non-financial performance may adversely affect their financial performance in a short term; but in the long-term point of view, firms’ values increase through their good images engraved by their respective social, environmental and governancial efforts. In addition, we compare the relative strength of impact among E, S, G, the three non-financial factors on the firms’ value measured in Tobin’s Q ratio, and find that S (social factor) and G (governancial factor) give statistically significant impact on the firms’ value respectively. This result tells us it would be advised to strategically embed CSV (creating shared value) pursuing both of profits and social responsibility in the firms’ future agenda. While E (environmental factor) is shown to be an insignificant factor for the firms’ value, it should be emphasized as a major concern by all the stakeholders in order to form a sound business ecosystem.
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