• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.189-200
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• 2017

본 연구는 국내 지역R&D투자와 지역경제지표 간의 관계를 파악하기 위한 것이다. 연구 방법은 패널VECM을 사용하여 1995~2014년 국내 17개 시 도별 정부 및 민간R&D투자, 고정자본과 고용, 지역내총생산의 상호 간 장 단기 인과관계를 도출하였다. 분석결과, 단기적으로 GRDP의 원인변수는 고정자본, 고용, 그리고 민간R&D투자로 나타났다. 고정자본의 원인변수는 고용, 민간R&D투자로 나타났으며, 고용의 원인변수로는 GRDP와 고정자본으로 나타났다. 장기적으로 고용, 고정자본, 정부R&D투자가 다른 변수들의 장기균형관계로부터 각각 인과관계를 갖는 것으로 나타났다. 이와 같은 결과를 바탕으로 목적과 대상 그리고 시간의 흐름에 따라 지역R&D투자의 직 간접적 효과를 함께 고려할 수 있는 추가적인 분석이 요구된다.

• KDI Journal of Economic Policy
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• v.11 no.4
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• pp.69-92
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• 1989

외국인(外國人) 직접투자(直接投資)의 중요성이 국내(國內) 외(外)에서 커지고 있음과 함께 그 투자본국(投資本國)과 대상국(對象國)이 어떻게 결정(決定)되느냐에 대한 학계(學界)의 관심(關心)이 새로워지고 있다. 본(本) 논문(論文)은, 투자본국(投資本國)-대상국(對象國)의 결정문제(決定問題)에 관해, 이를 생산요소(生産要素)의 국가간이동(國家間移動)으로 파악하려는 종래의 국제경제학(國際經濟學), 기업(企業)의 무형자산(無形資産)에서 그 중요한 이유를 찾으려는 산업조직론(産業組織論), 상이(相異)한 통화권(通貨圈)이 주는 투자상(投資上)의 우위(優位) 열위(劣位)를 중시(重視)하는 국제금융론(國際金融論) 등 제(諸) 접근방법(接近方法)들이 시사(示唆)하는 바를 살펴보고, 환율수준(換率水準) 및 그 예상변화율(豫想變化率) 등이 외국인(外國人) 직접투자(直接投資)에 미치는 영향도 재고(再考)하였다. 실증분석(實證分析)에서는 세계(世界)의 대미직접투자(對美直接投資)의 연도별(年度別) 시계열자료(時系列資料)를 사용하여 GNP, 환율수준(換率水準), 예상환율변화(豫想換率變化) 및 환(換)"리스크 프리미엄" 등 거시경제변수(巨視經濟變數)들의 영향을 추정(推定)하여 보았으며, 대체로 유의도(有意度)가 높고 선험적(先驗的)으로 기대하는 바와 같은 영향이 있다는 결과를 얻었다.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.584-585
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• 2008

기업은 구성원의 업무능률 향상과 가치 증대 등 조직의 경쟁력을 높이기 위해 IT 투자를 꾸준히 늘리고 있지만 이를 통해 실제기업의 조직 및 구성원의 성과향상에 대해서는 확신하지 못하고 있다. 본 논문에서는 기업경영에서 점점 많은 비중을 차지하고 있는 IT에 대한 투자 성과를 평가할 수 있는 방법론으로 IT-ROI 모델을 이용하여 투자 성과평가를 측정할 수 있는 방안에 대해 살펴보도록 하겠다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.5
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• pp.25-32
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• 2019

The purpose of this study is to investigate how to make a proper investment in ICO in the market. Previously, companies used to borrow money from banks or to obtain investments from venture capital (VC) and angel investors, but now ICOs are used as a new type of funding and financing model. The ICO sells the tokens or coins created on the blockchain openly online to raise the necessary funds, and provides the market value by paying the tokens or coins as much as the investment amount. According to this study, the limitations of the ICO market are (1) difficulties in evaluating the company, (2) uncertainties in investments, (3) lack of legal safeguards, and (4) measures to secure corporate stability after recruitment. At present, there is no way to cope with this systematically since the ICO is not protected in the legal framework. Nevertheless, we investigated the ways to make proper investment in the existing ICO market. In investing in ICO, investors should (1) consider investment methods and profitability, and (2) verify and judge investment fraud through various channels (ex. Homepage, composition team profile, etc.) and make investments based on this. This study will contribute to the formation of a healthy ICO market by understanding the newly emerged ICO market and studying the considerations when investing in it, thereby contributing to the right investor training and reducing the mass production of consumer damages caused by fraud. The limitation of this study is that the domestic ICO has not yet been examined in the legal framework, so further research is needed when policy changes occur in the future.

• Proceedings of the KIEE Conference
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• summer
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• pp.941-943
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• 2004

고정 투자율법이란 (Fixed Permeability Method : FPM) 시스템이 자기적으로 포화 상태에 있을 때 각 요소별 동작지점의 투자율을 고정하여 선형적으로 시스템을 재해석하는 방법으로, 두 가지 이상의 자계원에 의해 포화가 발생할 경우, 각각의 영향을 구분지어 포화시 철심내의 자계 비선형 문제를 해석할 수 있다. 본 논문에서는 제안된 고정 투자율법을 적용하여 자기 포화가 발생하는 영역까지를 운전 영역에 포함하는 매입형 영구 자석 전동기의 특성 값들을 추출하는 방법을 제시하였으며, 실험값과의 비교를 통해 그 타당성을 검증하였다.

• Korean Journal of Construction Engineering and Management
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• v.5 no.6 s.22
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• pp.179-190
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• 2004

Present private infrastructure investment in SOC investment has increased up to $11\%$ compared to the year 2003 and it is expected to increase in the future. In spite of its rapid increasement we don't have definite standard or system on distinctly presented rate of return for domestic private infrastructure investment yet, and practical and scientific research is not sufficient, compared to its necessity and importance. Hence, in this study we tried to build theories systematically, which are related to rate of return of private infrastructure investment to promote SOC private infrastructure investment to last successfully and present the proper level of rate of return of private infrastructure we investment appropriate in domestic situations through diverse analysis. Therefore, to present reasonable rate of return, we used 5 methods: existing research analysis, case study, financial index analysis, analysis of investors rate of return, and analysis of rate of return in a real estate market. After comparing and analyzing these methods, Ive presented in the end the appropriate level of rate of return of private infrastructure investment, which can be applied in a domestic market.

• The Korean Journal of Financial Management
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• v.23 no.2
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• pp.1-25
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• 2006

This paper studied the performance of momentum strategy and contrarian strategy based or past stock return ratio of Korean stock market. The comparative study shows that the volatility of stock markets that can be found the performance of momentum strategy is smaller than that of emerging stock market. Accordingly, This paper examines that the performances of momentum strategy and contrarian strategy are affected by the larger volatility in Korean stock market. Further analysis using the 6 years sub-portfolios reveals that the momentum strategy is significant only during 1980 to 1986 time period when it had the least market volatility. Additionally, we investigate whether firm-level volatility as well as market volatility influence on the performance of contrarian strategy, and figure out that the momentum strategy is significant for the portfolio composed of firms with smaller volatility for previous period, while not significant for the portfolio composed of firms with larger volatility.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.349-352
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• 2017

Since the early 2000s, many information security professionals have sought to measure the effectiveness of information security investments. Such efforts have devised a number of ways to calculate the return in ROSI (Return On Security Investment) including the Gordon & Loeb method for calculating cyber damage. However, due to the characteristics of information security structure, the lack of relate information sharing, and many qualitative factors are included, the damage calculation is inaccurate.. This study reviews related studies, analyzes the Gordon & Loeb method and the Shin-Jin method, which are considered to be the most efficient of the existing methods, and designs improved methods.

• Information Systems Review
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• v.10 no.1
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• pp.135-164
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• 2008

This research is to offer a structured yet practical ex-ante evaluation methodology for IT investment. Benchmarking the best practices of four Korean organizations, we try to integrate core processes, relevant measures, and evaluation dimensions into a consistent and wholesome body of evaluating methodology. The best practices we considered encompass a wide range of business enterprises, including for-profit, non-profit, service-oriented, and manufacturing entities. The proposed methodology consists of three stages; the first stage checks the validity of investments by looking into comprehensiveness of planning, willingness to accomplish, justifiable grounds for the investments, overlapping investments, and obstructing risks; the second do so by putting an IT investment into economic, strategic, and technological perspectives; and the last third would produce a unified quantity that summarizes outcome of the previous stages. Incorporating the proven knowledge, guidelines, and quantifying tools, the methodology could make a valuable reference model for IT evaluation practitioners who have been bedeviled by having to going through such ex-ante evaluations.

• KIPS Transactions on Computer and Communication Systems
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• v.1 no.3
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• pp.229-242
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• 2012

Although many companies acknowledge the necessity of investment of information security, it is difficult to grasp a tangible effect and to calculate a scale of damage from the security incident. Consequently, companies are under the reality that it is not easy to make an investment decision for information security and to calculate the investment scale. For the investment decision making, although there are several traditional techniques of investment analysis, the investment of information security, comparing to other tangible assets, has limitations in using traditional techniques due to the highly uncertain investment effects. In this study, the traditional technique of investment analysis will be described, and the application method of analytic technique for Real Option, which is developed from the evaluation technique of highly uncertain financial futures and options, will be suggested.