• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.205-222
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• 2019

In this study, we explored the relationship between experienced discrimination and volunteering activities among the $2^{nd}$ baby boom generation. Specifically, applying structural equation modeling, we examined how the effect of experienced discrimination on volunteering among the $2^{nd}$ baby boom generation is mediated by the negative perception of equal opportunity and achievement by personal merit. Data were obtained from the 2016 National Survey on Unequal Opportunity from the Circle Foundation. The research sample was comprised of 474 baby boomers ages 42 to 48 at the time of survey. Results indicated that perceived discrimination affects the level of volunteering among the $2^{nd}$ baby boom generation, through the negative perception of equal opportunity and achievement by personal merit. Based on the findings, we presented policy implications that could promote volunteering activities among the $2^{nd}$ baby boom generation.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.401-411
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• 2022

This study tests a model for the effect of low self-control on cyber crime and its mediating process. Intervening variables include smartphone addiction, social learning and opportunity variables. Analyzing a data from college students in Seoul, it is shown that the effect of low self-control has a significant effect on smartphone addiction. Results also show that smartphone addiction has a positive significant effect on differential association with illegal peers, illegal definition, and illegal opportunity, and in turn cybercrime. In addition, it is found that low self-control has also a direct effect on differential association with illegal peers, illegal definitions, and illegal opportunity without mediating by smartphone addiction. As a result, it is reveal that the effect of low self-control on cybercrime is indirect and its effect is mediated by smartphone addiction, differential association with illegal peers, illegal definitions, and illegal opportunity.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.1
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• pp.95-112
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• 2020

This paper is to investigate how cognitive bias of college students and entrepreneurs relates to perceived risks and entrepreneurial opportunities that represent uncertainty, and how various cognitive bias and entrepreneurial efficacy In the same way. The purpose of this study is to find improvement points of entrepreneurship education for college students and to suggest problems and improvement possibilities in the decision making process of current entrepreneurs. This empirical study is a necessary to improve the decision-making of individuals who want to start a business at the time when various attempts are made to activate the start-up business and increase the sustainability of the existing SME management. And understanding of the difference in opportunity evaluation, and suggests that it is necessary to provide good opportunities together with the upbringing of entrepreneurs. In order to achieve the purpose of the study, questionnaires were conducted for college students and entrepreneurs. A total of 363 questionnaire data were obtained and demonstrated through structural equation modeling. This study confirms that there is some relationship between perceived risk and cognitive bias. Overconfidence and control illusions among cognitive bias have a significant relationship between perceived risk and wealth. Especially, it is confirmed that control illusion of college students has a significant relationship with perceived risk. Second, cognitive bias demonstrated some significant relationship with opportunity evaluation. Although we did not find evidence that excess self-confidence is related to opportunity evaluation, we have verified that control illusions and current status bias are related to opportunity evaluation. Control illusions were significant in both college students and entrepreneurs. Third, perceived risk has a negative relationship with opportunity evaluation. All students, regardless of whether they are college students or entrepreneurs, judge opportunities positively if they perceive low risk. Fourth, it can be seen from the college students 'group that entrepreneurial efficacy has a moderating effect between perceived risk and opportunity evaluation, but no significant results were found in the entrepreneurs' group. Fifth, the college students and entrepreneurs have different cognitive bias, and they have proved that there is a different relationship between entrepreneurial opportunity evaluation and perceived risk. On the whole, there are various cognitive biases that are caused by time pressure or stress on college students and entrepreneurs who have to make judgments in uncertain opportunities, and in this respect, they can improve their judgment in the future. At the same time, university students can have a positive view of new opportunities based on high entrepreneurial efficacy, but if they fully understand the intrinsic risks of entrepreneurship through entrepreneurial education and fully understand the cognitive bias present in direct entrepreneurial experience, You will get a better opportunity assessment. This study has limitations in that it is based on the fact that university students and entrepreneurs are integrated, and that the survey respondents are selected by the limited random sampling method. It is necessary to conduct more systematic research based on more faithful data in the absence of the accumulation of entrepreneurial research data. Second, the translation tools used in the previous studies were translated and the meaning of the measurement tools might not be conveyed due to language differences. Therefore, it is necessary to construct a more precise scale for the accuracy of the study. Finally, complementary research should be done to identify what competitive opportunities are and what opportunities are appropriate for entrepreneurs.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.16 no.4
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• pp.135-151
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• 2021

This research attempts to analyze the factors influencing the entrepreneurial intention of employees in manufacturing field. In particular, key factors of entrepreneurship and personal characteristics explain a significant association with the intention to start-up. And study whether R&D support from public enterprise adjusts intention to entrepreneurial Intention. This study conducted a online survey on 292 small and medium-sized enterprise manufacturing employees in May 2020. Using linear regression model and binary logistic model. The main study results are the following: First, among the key factors(innovativeness, proactiveness, risk-taking) of entrepreneurship, proactiveness hardly influenced the opportunity competency. Second, among the factors(risk-taking propensity, locus of control, tolerance for ambiguity) of personal characteristics, locus of control hardly influenced the opportunity competency. Third, opportunity competency(opportunity recognition and opportunity evaluation) had positive influence to entrepreneurial intention. Fourth, the study investigated the mediated effect of opportunity competency. The result showed that among the factors of entrepreneurship and personal characteristics, only two factors that are proactiveness and locus of control were not mediated by opportunity competency. and opportunity evaluation was acted as a mediator between proactiveness and entrepreneurial Intention, compared with opportunity recognition. Lastly, public enterprise's R&D supporting moderated the entrepreneurial intention). Based on the result, the study showed that first, the key factors of entrepreneurship except for proactiveness and personal characteristics(risk-taking propensity, locus of control, tolerance for ambiguity) except for locus of control affect the intention to start-up, repeatedly. This results are explained that employees have not started a business yet. Second, research on start-up suggests the need to analyze factors differentiated before and after the start-ups. Based on the results, entrepreneurship and personal characteristics show that study on the effects of start-up intentions should be carried out before and after the actual start-up takes place, and can be used as effective data in policies to promoting start-ups in manufacturing field.

• Proceedings of the Korean Society for Quality Management Conference
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• 1998.11a
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• pp.269-276
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• 1998

This paper proposes an opportunistic age replacement policy. The system has two types of failures. Type I failures (minor failures) are removed by minimal repairs, whereas type II failures are removed by replacements. Type I and type II failures are age-dependent. A system is replaced at type II failure (catastrophic failure) or at the opportunity after age T, whichever occurs first. The cost of the minimal repair of the system at age z depends on the random part C(z) and the deterministic part c(z). The opportunity arises according to a Poisson process, independent of failures of the component. The expected cost rate is obtained. The optimal $T^{\ast}$ which would minimize the cost rate is discussed. Various special cases are considered. Finally, a numerical example is given.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.505-507
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• 2004

컴포넌트 기반 개발은 컴포넌트 재사용을 통해 생산성을 향상시키고, 검증된 컴포넌트의 사용으로 소프트웨어 품질을 증대시키며, 개발비용 및 일정의 단축을 유도하는 등 기존의 소프트웨어 개발 방법에 비해 다양한 이점을 보유하고 있다. 이러한 이점에도 불구하고 컴포넌트 기반개발을 성공적으로 정착시키란 쉬운 일이 아니다. 이는 바로 컴포넌트 기반 개발의 특성상 발생할 수 있는 위험을 체계적으로 관리하지 못했기 때문이다. 본 논문에서는 컴포넌트 기반 개발 시 발생할 수 있는 위험을 분석하고 영향을 미치는 측정 메트릭을 조사하여 위험을 정량적으로 측정하기 위한 초석을 마련하였다. 또한 컴포넌트 기반 개발 시 발생할 수 있는 위험을 체계적으로 관리하기 위한 'CBD 개발과제 위험 노출도를 줄이기 위한 OT(Opportunity Tree)'를 제시하였다.s;를 제시하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.502-504
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• 2004

세계적인 SW 산업의 변화 추이로 볼 때, 우리나라 SW업체들도 SW개발 체제를 하루바삐 CBD로 전환해야겠다는 데 대해서는 의심의 여지가 없다. 기업의 CBD 능력은 지속적인 사업구조 조정 및 신규사업 창출이 불가피한 21세기의 경영환경에서 필수적으로 확보해야 할 기업 핵심 역량으로 간주되고 있다. 선진국에서는 CBD가 90년대 중반부터 본격화되어 이제는 기업 정보시스템 구축 방식의 주류가 되어있다. 국내에서도 금융, 국방 부분을 선도로 CBD에 의한 정보시스템 구축을 요구하기 시작했으며, 향후 그 수요가 급증할 전망이다. 그러나 문제는 CBD로의 전환에는 여러 가지 역경이 도사리고 있다는데 있다. 특히, 본 논문에서는 재사용성에 의해 기대되는 효과에 비해 실질적인 재사용의 결과도출을 이루지 못하는 문제점 개선을 위한 Opportunity Tree를 제안해본다. 또한, CBD로 전환함으로써 거둘 수 있는 이득이 무엇인지, 전환을 위해 갖추어야 할 조건이 무엇인지를 확인하고자 한다.

• Journal of Korean Institute of Industrial Engineers
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• v.29 no.2
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• pp.126-134
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• 2003

Among a variety of models proposed by so far to calculate the real options value when the investment decision about the underlying project may be delayed, the Black-Scholes and the binomial lattice models have been widely used and discussed by academics and practitioners. However these two models do not provide us with intuition into how it is constructed and what it does really mean. In this paper, we will therefore explore its components and practically more intuitive meaning. With the components explored, we developed the mathematical model to calculate the real options value and thus strategic net present value, based on the opportunity cost concept, for which the investment decision about the underlying project is postponed by one year. We will finally present a short illustrative example for readers better understanding on the model proposed in the paper.

• Journal of Digital Convergence
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• v.6 no.2
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• pp.87-95
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• 2008

Information technology is rapidly diffused throughout the world. Unfortunately, as the technology goes on the disabled vocational rehabilitation is more isolated in physically and mentally. A new paradigm, 'Digital practical use Opportunity' is a product of the tremendous technological changes driving the disabled vocational rehabilitation. The employment for the disabled vocational rehabilitation is a hot issue. Because lack of education rehabilitation cause many problems for the employer. Relating program of employment and education for the disabled vocational rehabilitation, they can get a job in a better condition. This study propose a model of good environmental employment for the disabled vocational providing them the way of getting a job so that they can go as a member of highly developed society. It conducted in society could fundamentally advance our knowledge about the structure of the employment of the disabled vocational rehabilitation, cure their feelings, give them a chance to live happier, stronger, healthier.

• Journal of the Korean Operations Research and Management Science Society
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• v.26 no.4
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• pp.83-97
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• 2001

Net Present Value (NPV) criterion has been the most widely used criterion to evaluate investment opportunities. However, the analysis based on the NPV criterion falls to consider the managerial flexibility of deferring decisions until major uncertainty is resolved. Recently, real options method attracted a lot of attention as a Powerful approach to address the problem. If investment decision is deferred, the value of the investment opportunity increases but opportunity cost increases at the same time. Therefore, it is important to decide the optimal timing how long the decision can be deferred. In this paper, we developed a model deciding the optimal decision timing. Using the real options approach, the model derived the optimal deferring time until a decision is made. Then, the model was applied to a Korean mobile telecommunications company who wants to invest on the wireless resale business. We believe that this model would be very useful to overcome the problem of NPV decision criterion. With this approach, we can make contingent decisions based on the observation of uncertainly resolutions.