• Journal of Labour Economics
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• v.29 no.1
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• pp.129-152
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• 2006

The purpose in this study is to analyze the effect of expected public pension assets (or social security wealth) and retirement incentives on retirement behaviors of two wage earners households. For the purpose of the study, an empirical analysis was conducted. In the empirical step, it was found that the empirical results were significant for men, but not for women namely, statistically asymmetric if behaviors of two couples are interdependent. The cause for the statistically asymmetric results were then determined. The Bivariate Probit model was used for estimation in the first step and the KLIPS(Korean Labor and Income Panel Study) was used as data for estimation. According to the empirical analysis, the results showed statistically significant asymmetry for men, however not for women, in expected public pension assets and other retirement incentives, non-wage assets, age difference, spouse's health status, spouse's monthly wages per hour and aging of their spouse In this study, cause of statistically asymmetric result in asymmetric complementarities of leisure of couples were found, then explained through different methods of comparison from the most recent studies. First, spouse's cross wage elasticity of self leisure demand(retirement) was calculated and determined whether complementarities of leisure of couples is positive or negative. Then, the degree of complementarities of leisure was distinguished in comparison with the relative size of two cross elasticities. Thus, men have relatively strong complementarities of leisure. But for women, it may roughly cancel out due to the substitution effect and the income effect. Therefore, women have relatively weak complementarities of leisure.

• KIPS Transactions on Software and Data Engineering
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• v.6 no.7
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• pp.337-352
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• 2017

Clone-and-own reuse is an approach to creating new software variants by copying and modifying existing software products. A family of legacy software products developed by clone-and-own reuse often requires high maintenance cost and tends to be error-prone due to patch-ups without refactoring and structural degradation. To overcome these problems, many organizations that have used clone-and-own reuse now want to migrate their legacy products to software product line (SPL) for more systematic reuse and management of software asset. However, with most of existing methods, variation points are embedded directly into design and code rather than modeled and managed separately; variation points are not created ("engineered") systematically based on a variability model. This approach causes the following problems: it is difficult to understand the relationships between variation points, thus it is hard to maintain such code and the asset tends to become error-prone as it evolves. Also, when SPL evolves, design/code assets tend to be modified directly in an ad-hoc manner rather than engineered systematically with appropriate refactoring. To address these problems, we propose a feature-oriented method for extracting a SPL asset from a family of legacy applications. With the approach, we identify and model variation points and their relationships in a feature model separate from implementation, and then extract and manage a SPL asset from legacy applications based on the feature model. We have applied the method to a family of legacy Notepad++ products and demonstrated the feasibility of the method.

• Journal of KIISE:Software and Applications
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• v.34 no.4
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• pp.328-341
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• 2007

When the decision to initiate a software product line has been taken, the first step is the domain analysis describing the variability in the requirements, the second important step is the definition of a domain architecture that captures the overall structure of a series of closely related products. A domain architecture can be a core asset in product line by describing the commonalities and variabilities of the products contained in the software product line. The variabilities, which are identified at each phase of the core assets development, are diverse in the level of abstraction. Therefore, it is important to clearly define, systematically identify, and explicitly represent variability at the architectural level. However, it is difficult to identify and represent the variability which should be considered at the architecture level, because these may be appeared in architecture elements and in architecture configuration. In this paper, we suggest a method of developing domain architecture as a core asset in product line where commonality and variability are explicitly considered. First of all, we will describe a domain architecture metamodel that can explicitly define commonality and variability concepts by extending the Object Management Group's ($OMG^{TM}$ Reusable Asset Specification eRAS) model. Using the domain architecture metamodel, architecture elements are defined and the variations that can be identified at the architecture level are classified into two types in according th abstract level. Additionally, we describe a domain architecture where commonality and variability are explicitly considered on basis of this metamodel.

• The Korean Journal of Applied Statistics
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• v.26 no.1
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• pp.187-200
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• 2013

In this paper, we deal with the problem of deciding a hedging volatility for ATM plain options when we hedge those options based on geometric Brownian motion. For this, we study the relation between hedging volatility and hedge profit&loss(P&L) as well as perform Monte Carlo simulations and real data analysis to examine how differently hedge P&L is affected by the selection of hedging volatility. In conclusion, using a relatively low hedging volatility is found to be more favorable for hedge P&L when underlying asset prices are expected to be range bound; however, a relatively high volatility is found to be favorable when underlying asset prices are expected to move on a trend.

• Digital Contents
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• no.3 s.82
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• pp.71-73
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• 2000

현명하고 조심스러운 출발을 보였던 자료 보관업은 마침내 규모와 관계없이 모든 기업의 수입 기회이자 일상 생활의 편의로서 자리를 잡았다. 이 새로운 마법의 요소는 개별 전자 서비스로, 이것은 기존의 조직내 사용자들과 요금을 지불하는 새로운 대중들 모두에게 독창적으로 패키지화된 정보와 자료 자산을 제공한다.

• Patent21
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• s.55
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• pp.16-20
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• 2004

무형의 지식자산 창출에 더 의존하는 지식기반경제에서의 노벨 화학상의 중요성과 국가별 노벨 화학상 수상 통계를 살펴봄으로써 노벨상과 국가 경쟁력의 상관관계를 살피며, 3년 연속 노벨 과학상을 수상하게 된 일본의 과학기술에 대한 정책 방향과 2002년 노벨 화학상 수상자인 다나카의 수상 배경을 살펴봄으로써 우리나라의 국가경쟁력 발전 방안에 도움을 주는 시사점을 도출해 보고자 한다.

• Proceedings of the CALSEC Conference
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• 1999.07b
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• pp.711-716
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• 1999

조직내의 정형, 비정형 정보를 생성하여 분배, 유통, 축적, 재활용의 과정을 반복하여 조직의 지적 자산을 구축하여 활용토록 하는 시스템 ㆍ 광의의 GroupWare ㆍ 조직 내에 내재된 Information들을 관계되는 지식으로 편리하게 사용하고, 손쉬운 검색이 가능하도록 Multidimensional Road Map 혹은 Navigational Map을 제공하는 도구(중략)

• 프린팅코리아
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• s.14
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• pp.36-43
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• 2003

한국은행이 최근에 발표한 1990년 이후 인쇄업체의 기업경영 분석에 따르면 인쇄산업의 성장세는 주춤하거나 하락세를 보인 반면, 각 기업의 재무구조는 건실해 진 것으로 조사됐다. 외형보다는 내실화에 집중하는 경향은 97-98년을 전후로 뚜렷하게 나타났는데, 구제금융의 한파 이후 환율상승과 이자율 급등에 어려움을 겪었던 업체들이 기업의 내실 경영에 치중했기 때문이다. 기업 경영의 안정성이 점차 확보되는 가운데 몇가지 우려되는 점은 과다경쟁으로 인한 부가가치 하락과 99년 이후 양호해 지던 각종 지표들이 2002년 들어 주춤하는 양상을 보이고 있다는 점이다. 한국은행 발표자료를 업계의 성장성, 생산성, 손익의 관계비율, 매출액과 관련된 기업경영, 자산 및 부채 관계비율로 나누어 분석해 보았다.

• Journal of Digital Convergence
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• v.11 no.2
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• pp.91-99
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• 2013

The purpose of this study is to examine the value relevance of SCM using a regression model and we analyze the differences in the impact of industry type on corporate value. First, SCM key performance variables(asset utilization, cash flow, corporate growth, profitability) increases, the corporate value increase. Second, Asset utilization, cash flow, corporate growth in the high-tech industry showed a significant impact on the corporate value and corporate growth and profitability have an impact on the firm value in the non high-tech industry. This study are expected to be able to provide policy implications in the development of government policy to enable support for win-win cooperation, and ensuring the justification demonstrated by analyzing the impact of SCM enterprise value of the companies that want to maximize the effectiveness of SCM introduced.

• Journal of Digital Convergence
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• v.9 no.5
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• pp.175-191
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• 2011

To improve cooperative performance, organizations are increasingly developing its technology capabilities to maintain performance and satisfaction with its collative partners. The data for 143 collaboration experiences from domestic manufacturing firms were used to test hierarchical regression model with trust moderating between technology capabilities and collaborative performance and satisfaction. The result suggests that technological human resources, technological organization, technological leadership are the most important factors to affect positively collaborative performance and satisfaction, and there are interaction effects of trust on technological assets and technological organization with collaborative performance and satisfaction.