• Title/Summary/Keyword: program diversification

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An Investigation of Trading Strategies using Korean Stocks and U.S. Dollar (국내 주식과 미 달러를 이용한 투자전략에 관한 연구)

  • Park, Chan;Yang, Ki-Sung
    • Asia-Pacific Journal of Business
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    • v.13 no.2
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    • pp.123-138
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    • 2022
  • Purpose - This study compares the performances of dynamic asset allocation strategies using Korean stocks and U.S. dollar, which have been negatively correlated for a long time, to examine the diversification effects in the portfolios of them. Design/methodology/approach - In the current study, we use KOSPI200 index, as a proxy of the aggregated portfolio of Korean stocks, and USDKRW foreign exchange rate to implement various portfolio management strategies. We consider the equally-weighted, risk-parity, minimum variance, most diversified, and growth optimal portfolios for comparison. Findings - We first find the enhancement of risk adjusted returns due to risk reduction rather than return increasement for all the portfolios of consideration. Second, the enhancement is more pronounced for the trading strategies using correlations as well as volatilities compared to those using volatilities only. Third, the diversification effect has become stronger after the global financial crisis in 2008. Lastly, we find that the performance of the growth optimal portfolio can be improved by utilizing the well-known momentum phenomenon in stock markets to select the length of the sample period to estimate the expected return. Research implications or Originality - This study shows the potential benefits of adding the U.S. dollar to the portfolios of Korean stocks. The current study is the first to investigate the portfolio of Korean stocks and U.S. dollar from investment perspective.

A Study on the Effectiveness of Government Export Supports for SMEs : Based on Export Maketing Support Program in South Korea (중소기업 수출지원제도 실효성 연구 - 한국의 수출마케팅 지원프로그램을 중심으로 -)

  • Kim, Hag-Min;Lee, Ho-Hyung;Ahn, Ji-Jung
    • International Commerce and Information Review
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    • v.11 no.4
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    • pp.153-182
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    • 2009
  • This paper intends to increase the performance of export support programs for small-to-medium sized firms promoted by Korea government. A research construct is suggested for effective government support program targeted on the global marketing capability. The data is collected from the firms received the support more than once by Korean governments. The results are shown as follows. First, it is found that those firms who have high propensity to be involved in export business have shown high performance. Second, the firms with high global marketing capability have shown good performance. To be more specific, organizational commitment, strategic initiative, business differentiation, and market knowledge for target markets are found to be critical factors in successful export support program. The business differentiation strategy in target market is very critical. Finally, the degree of program management effectiveness is found to be important in high performance firms. It means that for those firms, much more advanced programs need to be developed. The government should develop diversified programs by considering the degree of global marketing capability.

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A Design and Development of Secure-Coding Check System Based on E-Government Standard Framework for Convergence E-Government Service (융복합 전자정부 서비스를 위한 전자정부 표준프레임워크 기반 시큐어코딩 점검 시스템 설계 및 개발)

  • Kim, Hyungjoo;Kang, Jungho;Kim, Kyounghun;Lee, Jaeseung;Jun, Moonseog
    • Journal of Digital Convergence
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    • v.13 no.3
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    • pp.201-208
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    • 2015
  • Recently computer, smart phone, medical devices, etc has become used in a variety of environments as the application fields of IT products have become diversification. Attack case of abuse of software security vulnerabilities is on the increase as the application fields of software have become diversification. Accordingly, secure coding program is of a varied but history management, updating, API module to be vulnerable to attack. Thus, this paper proposed a materialization of CMS linked system to enable check the vulnerability of the source code to content unit for secure software development, configuration management system that interwork on the transmission module. Implemented an efficient coding system secure way that departmentalized by the function of the program and by analyzing and applying secure coding standards.

Development of Control Program for Methane-hydrogen Fuel Conversion Based on Oxygen Concentration in Exhaust Gas (배기가스 내 산소 농도 기반 메탄-수소 연료 전환 제어 프로그램 개발)

  • EUNJU SHIN;YOUNG BAE KIM
    • Transactions of the Korean hydrogen and new energy society
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    • v.34 no.1
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    • pp.38-46
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    • 2023
  • Carbon neutrality policies have been strengthened to reduce emissions, and the importance of technology road maps has been emphasized. In the global industrial boiler market, carbon neutrality is implemented through fuel diversification of methane-hydrogen mixture gas. However, various problems such as flashback and flame unstability arise. There is a limit to implementing the actual system as it remains in the early stage. Therefore, it is necessary to secure the source technology of methane-hydrogen hybrid combustion system applicable to industrial fields. In this study, control program for methane-hydrogen fuel conversion was developed to expect various parameters. After determining the hydrogen mixing ratio and the input air flow, the fuel conversion control algorithm was constructed to get the parameters that achieve the target oxygen concentration in the exhaust gas. LabVIEW program was used to derive correlations among hydrogen mixing rate, oxygen concentration in exhaust gas, input amount of air and heating value.

The Teachers' Perceptions and the Current Status of in-service Training for the Arts Gifted (예술영재 담당 교원 연수 현황 및 인식 조사)

  • Maeng, HeeJu;Kang, Byoungjik
    • Journal of Gifted/Talented Education
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    • v.24 no.3
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    • pp.379-398
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    • 2014
  • This research examined to seek managing the way of effectiveness for training through the teachers' perceptions and the current status of in-service training for the gifted in arts. Conclusions based on the results of the analysis are as follow. First, it is analyzed that about 49.4 percent of respondents do not have any experiences of in-service training related to the gifted education in arts and there are also teachers who teach with no experiences of in-service training. Moreover, it is also analyzed that in-service training is generally being conducted with revolving to basic courses and the opportunities that teachers are able to develop programs for themselves are offered insufficiently. Second, in terms of management of in-service training, it is implied that accessibility to the training site and the active promotion of program, as well as sufficient provision of information, have to be considered in advance. Third, teachers have recognition that it is important to secure the diversification of training types, professionalism of instructors and managing directors for the effectiveness of in-service training. Forth, in terms of program, teachers show that the provision of educational programs, the diversification of training contents and the differentiated opportunities for developing programs according to basic, advanced courses, which can be applied to the field of gifted education in arts are most important. Furthermore, the convenience of transportation and the amenity of training facility are said to be important elements. Therefore, we suggest that, for increasing the effectiveness of in-service training for teachers of the gifted in arts, not only differentiated in-service training model and curriculum which can be applicable to the field, but also efficient environment suitable for the characteristics of the gifted education in arts.

The Effect of Family Function and Satisfaction with Life on Positive Attitude of College Students (가족기능과 삶의 만족도가 대학생의 긍정적 태도에 미치는 영향)

  • Park, Se-Jeong
    • The Journal of the Korea Contents Association
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    • v.20 no.5
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    • pp.389-397
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    • 2020
  • This study analyzed 308 college students to identify how family function and satisfaction with life is related to the positive attitude of college students. SPSS Win 18.0 program was used to perform ANOVA and Hierarchical Regression Analysis. As a result, first, older students had more positive attitude compare to the younger students. Secondly, among family functions, when the family cohesion was stronger, the diversification of perspective, self acception, and social adjustment was stronger, and it was identified that the diversification of perspective, self acception, and self control was higher when the family adaptability was greater. Thirdly, when the satisfaction level of life was higher, the positive attitude was high as well. Fourth, the higher the life satisfaction, the higher the positive attitude, except for self-control, all the sub-factors.

Contents Business of Korean Terrestrial TV (국내 지상파 방송사의 콘텐츠 사업 특성)

  • Lee, Moon-Haeng
    • The Journal of the Korea Contents Association
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    • v.10 no.10
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    • pp.140-151
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    • 2010
  • In the era of the rapid change of broadcasting industry, Korean terrestrial TV, dominant player, face also to severe competition with the new media platforms. To survive in the traditional market and to be winner in the new market, they tend to diverse their activities. Particularly, they expand the activities to the content business. Therefore, this study focus on the diversification of 3 major free TV, KBS, MBC, SBS. As a result, Korean terrestrial TV still dominate content industry with their enormous library and their distribution networks : they conflict with the independent companies and do the contents business exclusively. There are no rooms for the independent distributor. Among 3 players, the strategies of SBS have been oriented to the business and in the field of MPP(Multiple program Provider), the performance of MBC has been remarkable.

A Study on Efficient Noise Filtering of Patent Data Analysis and Level Assessment of Patent Technology which improve reliability (특허 데이터 분석시 효율적인 노이즈 제거와 신뢰도가 향상된 특허 기술수준 평가에 관한 연구)

  • Kang, Hee-Seop;Lee, Seung-Ho
    • Journal of Korea Technology Innovation Society
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    • v.15 no.1
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    • pp.105-128
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    • 2012
  • This paper proposes the technological level assessment which improved reliability and the efficient noise elimination methods in the process of establishing patent map analysis data. In order to eliminate efficiently noise (removed by the manual process in the past), the paper applies the Logical Operator 'AND', makes it a program in excel VBA(Visual Basic Application), and obtains the valid data. For the improved reliability technological level assessment of the patents, the study calculates average number of claims, Patent Family Size(PFS), Cites Per Patent (CPP), Triad Patent Families, Standardization Patent Diversification Index (stdPCPI), and haF-index(Hirsch a Family index). The result which applied noise exclusion work showed less than 10% of acquired patent data ratio and confirmed high reliability. The result that apply proposed technological level assessment index makes sure that balanced technological level assessment which improved reliability by producing synthetic technological level assessment.

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A study on Strategies of Entering the Overseas Market for the Profit Diversification of the Traditional Performing Arts Industry (전통공연예술산업의 수익 다원화를 위한 해외시장진출 모델연구)

  • Bek, Jungil;No, Suyeon
    • The Journal of the Korea Contents Association
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    • v.21 no.1
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    • pp.55-65
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    • 2021
  • The purpose of this study is to explore whether entering the overseas market can be an opportunity in overcoming the limitations of the single profit structure in which the traditional performing arts industry relies on public support. To this end, we applied the concept of industrial value-chain and business model and divided the overseas market entry process into four stages-preparation, promotion, harvest, and follow-up. Based on three case-studies that actively pursued overseas market development with market-oriented thinking in the field of traditional music, the relevant entry model of overseas market for the Korean traditional performing arts industry was suggested. Although the overseas market is not yet a major source of revenue, the traditional performing arts teams searching for profit diversification can consider the overseas entry model derived from this study. Also as found in case studies, the Korean government should establish an institutional system to foster planning and distribution experts in charge of overseas markets for the traditional performing arts, and develop a long-term information provision program away from the one-time expense support.

Hair Damage and Wave Efficiency according to the Degree of Alkalinity in Permanent Wave

  • Jeong, Nam-Young;Lim, Sun-Nye;Choi, Chang-Nam
    • Applied Microscopy
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    • v.42 no.3
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    • pp.136-141
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    • 2012
  • Diversification and individualization are pursued to fulfill the increasing human desire for beauty. There are many methods to change human appearances; of these, a permanent wave is often applied to improve beauty. A permanent wave uses physical and chemical methods to break and reform the bonds of natural hair. Thus, research into the optimized conditions for permanent waves is necessary to minimize hair damage and improve the efficiency of the treatment. The object of this study is to examine the effect of varying the alkalinity (8%, 12%, and 16%) of the permanent wave treatment on the wave efficiency, degree of hair damage via tensile strength, and degree of hair protein release. The results indicate that the treatment with the highest alkalinity (16%) is more effective than that with 8% alkalinity; however, the degree of hair damage when treated with the 16% alkalinity wave is higher than with the 8% alkalinity wave. Additionally, hair proteins increasingly dissolve with increasing alkalinity of the permanent wave.