• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.10a
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• pp.165-174
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• 2005

본 논문에서는 2개의 오프라인 기반의 사이버대학과 2개의 순수 온라인 기반의 사이버대학을 대상으로, 각 대학의 이동성매체 도입의 차이점과 해당 대학의 학습자와, 교수자의 이동성매체를 통한 서비스 요구사항들이 정보제공자와 어떠한 격차를 보이는지에 대한 요구격차분석을 수행하였다. 이를 통해서, 이동성매체 도입에 따른 서비스 요구를 범주화하고 사이버대학의 이동성매체 도입 유형모델을 제시 하였다. 심층면담에 근거한 질적 연구 방법을 통해서, 사이버대학의 이동성매체 도입에 대한 교수-학습자와 정보제공자 간의 서비스 요구를 9가지 범주(컨텐츠 품질, 적시적 인포메이션 서비스, 교수학습자간 커뮤니케이션, 저작권 문제, 서비스 접근성, 서비스이해도, 서비스 선호도, 서비스 표준화, 교수-학습자와 정보제공자간의 컨센서스)로 도출하였다. 또한 인터뷰 결과의 분석을 통해서, 4개의 사이버대학이 중요시 하는 서비스 요구의 범주가 상이한 것을 확인할 수 있었다. 이를 토대로 사이버대학의 이동성매체 도입의 유형을 '요구적극 반영형', '신중도입 검토형', '경쟁적 도입 반영형', '요구소극적 반영형'으로 분석하였다.

• Journal of Korean Society of Transportation
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• v.25 no.6
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• pp.121-128
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• 2007

This paper suggests a way of estimating the value of interclass equity improvement by railway operations. Equity is understood in this paper in the context of a mobility gap between classes. The value of the reduced mobility gap by railway operations is interpreted as an increase of social equity. In particular, the unit value of equity improvement by rail services is quantified based on the amount of fare reduction through public service obligations. The difference in the surplus calculation between elastic and inelastic demands relative to the reduction is also discussed. The result of this study is expected to be helpful of performing more cautious appraisal for rail investment schemes.

• Environmental and Resource Economics Review
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• v.8 no.2
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• pp.149-174
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• 1999

본 연구는 1990년대 초 중반의 한국의 화력발전소 자료를 이용하여 발전부문의 생산성 변화를 분석하되, 생산성 변화를 발전소간의 효율성 격차에 의한 부문과 발전부문 전체의 생산함수 이동을 통해 나타나는 기술변화로 나누어 분석하였다. 분석결과, 화력발전소간에는 의미있는 정도의 효율성 격차가 존재하는 것으로 나타났으며, 분석에 포함된 기간 동안 연평균 약 5% 정도의 생산성 증가가 발생하였고, 이 가운데 효율성 격차의 해소를 통한 생산성 증가가 약 2%, 그리고 기술진보에 의한 생산성 증가가 약 3%를 차지하였다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.829-834
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• 2005

현재 이동통신과 데이터서비스 수요의 급증과 정보통신기술의 발전으로 인한 정보격차 문제는 심화되고 있다. 고도 정보화 사회에서는 정보가 삶의 수준이나 질을 결정하는 중요요인이지만 정보격차의 문제를 시장 기능으로만 해결하기에 어려워 사회적 제도와 같은 체계적인 정책수립을 통한 해결이 필요하기에 기존의 보편적 서비스제도의 범위를 유선 음성 전화 이상으로 확대해야 할 필요성이 있다. 본 논문에서는 기존 보편적 서비스제도의 범위를 이동통신 서비스까지로 확대하여 정보격차 해소, 사회복지, 균형적인 사회발전 등의 보편적 서비스제도의 의의를 맞춰가고 이에 보편적 서비스제도의 범위 확대가 법적으로 타당한가를 여러 상황을 고려하여 타당한 것인가를 살펴보았다.

• International Area Studies Review
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• v.16 no.3
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• pp.119-134
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• 2012

This paper examines the shift to service economy in the developed countries including Korea and analyzes whether Baumol's cost disease hypothesis could explain the labor productivity growth in the developed countries even though the share of service industry is rising rapidly. We have found the following results: First, the shift to service economy is widely observed in the developed countries. Second, the productivity gap between manufacturing and service industry is widening as a result of stagnant productivity growth in service industry. Third, however, the productivity in the whole economy is still growing because of the large productivity differences among the sub-industries in service industry. Fourth, we have found that the productivities of some service industries, such as finance, communication, business service, etc., are almost same or larger than the productivity of manufacturing industry. From this fact it is likely that the productivity of the whole economy could grow in spite of the stagnant productivity growth in service industry.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.203-215
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• 2013

This study calculated meta Malmquist indices and their bootstraped estimates and then decomposed them into technical efficiency change(TEC), technology change(TC), pure technology catch up(PTCU), frontoer catch up(FCU), using annual data set of general hospitals from year 2007 to 2011 collected by Korean Hospital Association and then analyzed productivity change and technology gap of Korean general hospitals. The results and implications were as follows below. First, public general hospitals showed higher meta technical efficiencies than private general hospitals while exhibited lower technology gap ratio which meant a few large private general hospitals led the whole general hospitals. Second, group productivity of private general hospitals increased larger than public general hospitals due to the differences of PTCU rather than FCU. But, there was no statistically significant differences for technical efficiency, productivity change, technology gap. Thus, public general hospitals played the same role as the private general hospitals in terms of the number of patients treated. But, considering financial hardships of public general hospitals, public hospitals needed to share and learn medical and managerial skills of the best practice of private general hospitals.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.4B
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• pp.355-363
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• 2006

A rapidly increasing demand of voice and data through mobile telecommunication service and the development of technologies related with the service are sufficiently said to make the service become an indispensible communicating means, not just selective one. However, in the other side of the generalizing of mobile telecommunication service, there is said to be a worsening situation of unbalanced benefits due to the problem of information difference between the non. The more advanced mobile telecommunication service proceeds, the more deepens the problem, and it is generally known that the problem cannot be solved by the ability of free market itself as seen in the wired telecommunication market. Therefore, we need to set up a systematic policy of mobile telecommunication service for solving this problem, and also think over whether to include the service within the range of universal service. In this study, we examine the required factors for including the service within the range of universal service, and analyze the validity of the including in the view point of institutional aspects.

• Journal of the Korean Regional Science Association
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• v.40 no.3
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• pp.75-93
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• 2024

This study examines the impact of moving to an opportunity-rich area on an individual's wage income to identify the relationship between regional disparities in opportunities throughout a person's life cycle and life outcomes. Based on the Graduate Occupational Mobility Survey (GOMS) provided by the Korea Employment Information Service, individuals with similar life experience prior to regional mobility were selected and analyzed using the Propensity Score Matching (PSM) method. Specifically, the life cycle was classified into stages such as pre-high school, university entrance period, and employment period. Then, a path model was established to analyze regional mobility, education, employment, and wage income by life cycle stage. The analysis results indicate that the life cycle stage where regional mobility had the greatest impact on an individual's economic performance, that is, the stage where the impact of opportunity disparities was most unequal, was the university entrance period. Additionally, moving to an opportunity-rich area was a critical factor that cumulatively affected subsequent life. Hence, pre-high school mobility was also noteworthy as it induced life in the central area later on. Lastly, while parental income itself was influential, but when combined with regional mobility, it could act as a means of transferring wealth to the next generation. These results suggest that the state should strive to alleviate the regional imbalance around universities by fostering universities outside the capital region and reduce the possibility of the influence of parents' socio-economic background on regional mobility.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1807-1810
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• 2015

모바일 기기의 화면 크기와 해상도의 발달로 모바일러닝은 시각장애인들의 이동성의 제한과 접근성의 문제를 해결해 줄 수 있는 학습방법이 되었다. 그러나 시각장애를 가진 학습자들은 메뉴 구조의 복잡성으로 인해 원하는 메뉴로 이동하는 것에 어려움을 겪고 있다. 본 논문에서는 이와 같은 문제점을 해결하기 위해 4개의 시작메뉴를 제안한다. 4개의 시작메뉴는 모바일 기기의 화면에 4개의 코너에 시작화면을 불러오는 영역을 제공하여 시작메뉴의 선택이 쉽고, 메뉴선택을 위한 반복적인 이동횟수와 메뉴구조의 복잡도를 줄일 수 있다. 따라서 4개의 시작메뉴는 시각장애를 가진 학습자가 모바일러닝 환경에서 모바일러닝 콘텐츠를 통한 학습이 쉽게 이루어지도 도와주어 즐겁게 지식과 기술을 습득하여 정보격차를 줄일 수 있다.

• Journal of Labour Economics
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• v.35 no.2
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• pp.43-77
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• 2012

This paper investigates how individual labor income is determined by initial conditions - such as educational attainment, age, and sex - and all the other conditions. Using KLIPS (Korea Labor & Income Panel Study) database, the paper finds, first, that over the period of 1998-2008, cross-sectional income distribution has deteriorated for the whole sample but not within each age group. Second, income mobility defined by the relative importance of initial conditions in individual income disparities has moderately increased in most age groups.