• 한국건설관리학회논문집
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• 제17권3호
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• pp.108-115
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• 2016

공공택지지구의 공동주택용지 매입을 통한 아파트 개발사업에서 원재료인 토지에 투자하는 부분에 대해서는 사업시행자의 내부화된 정보와 개별적인 분석에 의존하여 투자결정모형을 일반화하기 어려웠다. 이에 본 연구는 아파트 개발사업에서 가장 중요한 공동주택용지 투자가격 결정을 위해 토지의 개별 특성과 아파트 시장요인이 공동주택용지 가격에 어떠한 영향을 미치는 지에 대해 분석하였다. 이를 위해 다중회귀분석방법을 활용한 횡단면 분석을 한 결과, 토지총금액에 영향을 주는 요인은 토지면적, 용적률, 건폐율, 지방권인지 여부였으며, 지상연면적당 토지가격에 영향을 주는 요인은 아파트 비율, 아파트 매매가격 및 전세가격, 분양이득변수, 지방권인지 여부, 아파트 가격지수 1년간 상승률 등으로 나타났다. 이러한 연구결과를 통해 토지 자체의 개별요인에 의한 가격결정 요인과 완제품 시장인 아파트 시장과 원재료 시장인 토지시장과의 연관성을 규명하여, 시장요인에 근거한 객관적인 토지투자가격 결정모형을 도출하였다. 이를 통해 공동주택용지를 공급하는 사업자는 사업지구 조성 시 공동주택용지 매각금액의 적정성을 추정할 수 있고, 토지수요자인 건설사업자는 토지투자를 위한 가격결정 범위를 추정하는 데 실질적으로 기여할 수 있을 것으로 기대한다.

• KDI Journal of Economic Policy
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• 제39권2호
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• pp.75-98
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• 2017

This paper aims to estimate the social discount rate (SDR) rather than dig into its theoretical foundation. As SDRs can be derived by investigating both the rate of return on investment and the social time preference rate, we estimate the marginal productivity of both private and public capital and the time preference rate based on the Euler equation. In order to provide a single representative SDR, the weighted averages of the marginal productivity and time preference rate, whose weights are determined by the flow of funds data reflecting the social demand of funds, are presented. Based on the empirical results, we argue that the marginal productivity of private capital stands in the middle of the 3% range while that of public capital varies from 4.5% to 8.6%, with the time preference rate showing a decreasing trend from 3.2% in the early 2000s to 1.2% by around 2030. The single representative SDR or the weighted SDR is estimated to be approximately 3.0~4.5% and expected to continue its downward trend for the foreseeable future.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2004년도 춘계학술대회
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• pp.77-97
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• 2004

In this paper we: (1) analyze the relationship among public R&D investment, private R&D investment, and GDP by employing the Granger causality test; (2) examine if there is any country-specific pattern in the relationship by testing the cases of Korea, the U.S. and Japan. We found some common results for the above countries as follows: (i) GDP causes Public R&D, not vice versa; (ii) Private R&D causes GDP; and (iii) Public R&D does not cause Private R&D. For the bivariate model of GDP and total R&D, the results show the existence of one-way causality running from total R&D to GDP for both U.S, and Japan. We also found bidirectional causal relationship between GDP and total R&D for Korea, which could be interpreted as a typical pattern for newly industrialized countries.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.344-351
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• 2013

Private participation on public infrastructures projects is being promoted by governments of several developing countries, among them Colombia. As a result, several advantages such as service delivery efficiency, technology application and faster execution of the projects have been recognized. Hence, the Colombian Government is looking for schemes that allow the private investment in projects like hospitals, schools, prisons and public edification. In this paper, experiences in PPP from other countries were analyzed and adjusted to the Colombian environment. As a result, a model adapted to Colombia is presented, based on a well-developed case from Spain. The awarding process is defined by economic criteria, previous compliance of minimum technical exigencies. Once the infrastructure is operating, contractual periodical payments will be done, based on the performance of the facility.

• 산업공학
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• 제23권4호
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• pp.300-310
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• 2010

This paper is about an optimal investment portfolio strategy. Financial data of stocks, bonds, and savings from January 2. 2001 through October 30. 2009 were utilized in order to suggest the optimal portfolio strategies. Fundamental analysis and technical analysis were used in stocks-related strategy, whereas passive investment strategy and active investment strategy were used in bond-related strategy. The score is assigned to each stock index according to the suggested strategies and set trading rules are based on the scores. The simulation has been executed about each 29,400-portfolios and we figured out with the simulation result that 26.75% of 7,864 portfolios are more profitable than average stock market profit (22.6%, Annualized). The outcome of this research is summarized in two parts. First, it's the rebalancing strategy of portfolio. The result shows that value-oriented investment(long-term investment) strategy yields much higher than short-term investment strategies of stocks or active investment of bonds. Second, it's about the rebalancing cycle forming the portfolios. The result shows that the rate of return for the portfolio is the best when rebalancing cycle is 12 or 18 months.

• 한국실내디자인학회논문집
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• 제21권4호
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• pp.114-120
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• 2012

There are lots of buildings which were built before the Legislation on building energy rating system. Remodeling of the buildings would be required for an improvement of the building energy rating system was enforced by the government. In the Passive Building Design, Elements which will be used for the remodeling are Insulation, Window, External venetian blind, Heat exchanger. The Purpose of this study is to indicate a Method for the improvement of Energy saving by an analysis of Construction Cost, Cost Evaluation, Energy performance Efficiency in applied design elements. In this study, the remodeling of existing public buildings to improve energy efficiency rating was applied to extract the elements of design-specific energy performance, efficiency, and the application of the designs that has been analyzed. The results were as follows: applying the design-specific cost-effective investment that represents the economy (investment efficiency/%) surveyed the average insulation(7.0%), triple glazed windows(10.1%), double glazed windows(12.1%), external shading(24.5%), and Heat(77.2%) were analyzed in order to be more efficient. Analysis of the basis of information on the existing public buildings to improve energy efficiency rating for the remodeling depending on driving conditions at a degree of individual difference. The main effect, however, depending on economic investment, design elements, heat exchangers, external awning, double glazed windows, triple glazed windows, insulation, is recommended as review of the order shall be determined.

• STI Policy Review
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• 제5권1호
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• pp.75-97
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• 2014

Entrepreneurial financing, such as publicly initiated venture capital or grant schemes, serves as an important policy instrument that aims to bridge the financing gap facing young, innovative businesses, a gap that is mainly due to higher risk and growing uncertainty, and to strategically promote the creation of new ventures through the revitalization of their venture capital industries. This study examines public venture capital initiatives in Australia, Canada, and Sweden, and discovered that all three countries actively foster their venture capital industry through the formation of funds or the provision of tax incentives. It is notable that the majority of financing initiatives heavily depend on supply-side measures rather than demand-driven policies that focus on stimulating private investment in technological innovations and discoveries. This paper discusses in-depth the policy impact of public financing initiatives and their subsequent side-effects raised in the process such as overlapping in funding structure across the country, lack of monitoring and evaluation for feedback, fragmentation across the government ministries and agencies, and competition with the private sector, which may cause inefficiency as a result of public intervention. Financial constraints may arise for many reasons, partly resulting from the lack of investment readiness of young entrepreneurs. This signals a policy shift towards the creation of market-driven demand away from the traditional supply-push approach, and is a grand challenge to policymakers in entrepreneurial financing. Attention is leaning towards the efficiency and effectiveness of these public-financing initiatives in terms of their policy roles. It is worth noting that policy should focus on generating synergy so available resources can be channeled into the early, risky stage of new ventures, working as facilitator to the achievement of an intended policy goal.

• 대한산업공학회지
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• 제12권2호
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• pp.89-99
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• 1986

The study attempts to estimate and evaluate the rates of return on graduate degree holders who major in science and engineering. The model of this study adopts the rate of return method considering unemployment as well as mortality rate. The data are collected by questionnaires and interviews. The results show that the social rate of return(SROR) of bachelors is lower than the rate of return on investment in physical capital which is assumed as a decision criterion of public investment in Korea, but the SROR of Ph.D. holders is balanced. The results also show that the private rates of return (PROR) of all the levels in postgraduate science and engineering education are higher than the private discount rate which is a decision criterion of private investment in Korea. It also indicates that the PROR on investment in graduate education is not likely higher than the SROR because an individual bears high share of the educational costs.

• 한국산학기술학회논문지
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• 제18권1호
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• pp.523-529
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• 2017

본 연구는 종합병원으로 운영되고 있는 지방공사의료원들과 민간 비영리법인 종합병원들 간의 자본과 인력의 활용도와 경영성과를 비교하여, 지방의료원들이 재정자립을 위한 효율적이고 합리적인 생산성 제고방안을 모색하고자 하는데 목적이 있다. 분석자료는 2011년부터 2014년까지의 지방공사의료원과 민간 비영리법인 종합병원의 투자효율 산출을 위한 세부계정과목이 구분된 결산자료로, 투자효율 및 경영성과 지표는 총자본 투자효율, 생산활동에 투자된 유형고정자산 투자효율, 인건비 투자효율, 부가가치생산성, 사업수익 이익률을 비교 분석하였다. 분석 결과, 투자효율인 총자본 투자효율, 생산활동에 투자된 유형고정자산 투자효율, 인건비 투자효율은 민간 비영리법인 종합병원이 지방공사의료원보다 유의하게 높았는데 특히 생산활동에 투자된 유형고정자산 투자효율의 차이가 매우 컸다. 그리고 경영성과에서는 지방공사의료원이 민간 비영리법인 종합병원에 비해 사업수익 부가가치율은 높은 반면에 사업수익 이익률은 유의하게 낮았다. 또한 투자효율과 부가가치생산성이 사업수익 이익률에 미치는 영향을 살펴본 결과, 지방공사의료원은 생산활동 유형고정자산 투자효율과 인건비 투자효율, 민간 비영리법인 종합병원은 인건비 투자효율이 유의하게 영향을 미쳤으며, 인건비 투자효율의 영향이 가장 컸다. 따라서 지방공사의료원들이 자립경영을 위한 생산성 제고방안으로 수익발생과 관련된 자산의 활용도, 그리고 인건비와 관련하여 인력의 활용도와 적정성에 대한 검토의 필요성이 제기된다.

• 한국전자거래학회지
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• 제6권2호
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• pp.57-71
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• 2001

This paper provides an economic evaluation model for public web services which are mainly operated by government agencies. Though there are various services, this paper focus on services for bottleneck problem solving and management information providing. This paper suggests quantitative and qualitative effects of public web services and evaluates them with I-NET users using e-mail surveys. This Paper mv provide a guideline for the future investment on public web services.