수익형 민간투자사업(BTO) 입찰평가 분석: 도로사업을 중심으로

김정욱,Kim, Jungwook 한국개발연구원 2011 韓國 開發 硏究 Vol.33 No.4

Upon selecting preferred bidder in Public-Private Partnership projects, multi-dimensional procurement auction, where price factor and non-price factor are evaluated, is used. This paper tries to analyze bidding data in BTO road projects. It is shown that a winner tends to get higher score in bidding evaluation, which is partly due to increase in base score as well as fiercer competition among bidders. It turns out that score margin in non-price factor was determinant in selecting winner. Also, there was no competition when the level of bonus point was set too high. For price factor, it costs 730 million KRW per score in construction subsidy by government, while it costs 2.43 billion KRW per score in toll revenue. For non-price factor, it was estimated to cost 2.30 billion KRW. Based on the results, it was suggested that we should have appropriate level of bonus point for first initiator, change in scoring rule in construction subsidy part, adjustment of base score in evaluation. 수익형 민간투자사업의 경우 가격요소와 비가격요소를 동시에 고려하는 다차원 경매제도가 시행되고 있다. 본 논문은 수익형 민간투자사업 중 도로사업의 입찰 평가자료를 분석하여 정책적 시사점 및 개선방안을 제시함을 목적으로 한다. 입찰 평가자료 분석 결과, 평가 1위 사업자들의 득점이 증가하고 있는데, 이는 기본점수의 증가와 경쟁의 심화로 인한 것으로 판단된다. 평가 1위 사업자 선정에는 비가격부문에서 발생하는 점수편차가 결정적인 것으로 제시되었다. 또한 최초제안자 우대점수가 높게 설정된 사업의 경우 경쟁이 발생하지 않음도 확인하였다. 가격부문 중 재정지원부문의 점수별 금액은 평균 7.3억원으로 통행료부문의 점수별 금액 24.3억원과 큰 차이를 보였다. 비가격부문의 점수별 금액은 23.0억원 정도로 추정되어 가격부문과는 다소 차이를 나타내었다. 분석결과를 토대로, 최초제안자 우대점수의 적정 수준 유지, 재정지원부문의 평가방식 개선, 기본점수의 재조정 등이 제언되었다.

민간투자사업의 후생효과 분석

김정욱,문외솔,Kim, Jungwook,Moon, Weh-Sol 한국개발연구원 2013 韓國 開發 硏究 Vol.35 No.3

본 연구는 공공부문과 민간투자사업자를 포함한 일반균형모형을 사용하여 재정사업과 BTL 민간투자사업의 후생 차이를 비교 분석한다. 다른 모든 조건이 동일할 때 정부가 세입 세출을 동일하게 유지해야 한다고 가정할 경우, 민간투자사업하에서의 국민경제 후생수준이 재정사업하에서의 후생수준보다 높은 것으로 나타난다. 정부가 균형재정의 제약을 회피할 목적으로 민간투자사업을 무리하게 추진하는 경우 미래의 임대료가 모두 부채로 간주되기 때문에 상당한 사회적 비용이 초래될 수 있음을 명시적으로 보인다. This study investigates the welfare implications of BTL projects using a general equilibrium model with the public sector and public-private partnerships. We show that when the government is not allowed to run budget deficits but private firms is able to overcome the financial constraint, BTL projects performed by public-private partnerships (PPPs) could be a good alternative and improve the welfare of the model economy. This paper quantitatively investigates excessive expansion of PPP projects and several alternatives to retrieve welfare losses caused by such an expansion. Assuming that future rents of BTL projects are not taken into account, we find the welfare losses up to 20 percent relative to conventional government projects. Finally, we show that it would be possible to reduce the losses by transforming the fully depreciated capital stock of the government projects into much smaller new PPP projects.

물류운송산업 규제의 경제적 효과

김정욱,위서연,KIM, Jungwook,WI, Suhyeon 대한교통학회 2017 대한교통학회지 Vol.35 No.3

This research reviews regulations on logistics/transport industry and attempts to quantify the effects of regulation mitigation on GDP per capita. South Korea's transport industry has been gradually expanding, however, the industrial structure is still short rooted. In 2014, average number of hours worked is 5th highest and wage margin 12th smallest out of 18 industries. Furthermore, the regulations for this industry appear to be stricter than those of other industries. OECD's logistics/transport industry regulatory index for South Korea has been decreasing for the last 40 years but still exceeds those of EU, Japan, US, and other countries. This paper provides supporting reasons for regulatory reforms by analyzing the ripple effects on real GDP. Factors such as the ratio of trade among GDP, the enrollment rate to primary school, energy usage per capita, and population are controlled in the fixed-effect model. Estimation results showed that 1 unit decrease in transport/logistics regulatory index is correlated with 8.1% increase of the real GDP per capita, that is, 10% of deregulation is expected to yield 2.16% increase in GDP per capita. Thus, it is expected that mitigating regulations on market entries, price determination, ownership structures of network industry, vertical integrations can improve the economy of South Korea.

공공투자사업의 입·낙찰 분석

김정욱,Kim, Jungwook 한국개발연구원 2010 韓國 開發 硏究 Vol.32 No.2

공공투자사업에서는 최저가낙찰제, 턴키 제도, 대안입찰제 등 다양한 방식이 사용되고 있다. 최근 가격경쟁을 통한 효율성 제고를 주목적으로 하는 최저가낙찰제가 확대되어 시행되고 있다. 본 논문은 우리나라 입 낙찰 제도의 현황과 특징을 파악하고, 대형 공공투자사업에 주로 적용되는 최저가 낙찰제, 턴키 대안 입찰제도하에서의 가격 경쟁효과가 직접적으로 드러나는 낙찰률을 비교 분석하는 것에 의미가 있다. 각 입찰제도의 성과는 경쟁의 행태에 달려 있음을 고려하여 경쟁률과 낙찰률을 중심으로 여러 입찰제도의 입 낙찰 현황을 분석하였다. 1,000억원 이상 사업의 경우 최저가낙찰제하에서 평균 입찰참여자 수는 33.75명, 평균 낙찰률은 61.18%로 나타나, 턴키 대안 입찰제의 평균 입찰참여자 수 2.94명, 평균 낙찰률 90.20%와 큰 차이를 보였다. 최저가낙찰제의 경우 규모의 차이를 고려한다 하더라도 낙찰률이 현저히 낮으며, 경쟁의 정도가 심한 것을 확인할 수 있다. 이러한 낙찰률의 차이는 근본적으로 제도의 차이로 해석할 수 있으며, 경쟁의 차이로도 일부 해석할 수 있다. 민간투자사업의 경우, 평균 입찰참여자 수는 1.88명이며, 평균 낙찰률은 90%에 이르고 있어 경쟁 활성화를 통해 효율성을 제고할 여지가 있음을 제시하였다. This paper considers the effect of various types of procurement auction system on competition focusing on the rate of successful bidding. We analyze the number of bidders and the rate of successful bids using online procurement data of the Public Procurement Service. The average number of bidders is 301 and the average rate of successful bids is 87.42% while the weighted average rate is 75.13%. These numbers show that there is quite strong competition among bidders and the rate is lower as the expected price is higher. When we analyze the data of price procurement auction, the rate is also shown to be lower as the expected price is higher. Furthermore, the rate decreases as the number of bidders increases which naturally makes the competition stronger. Meanwhile, the analysis finds that the inclusion of the onsite bidding, the PQ(Pre-Qualification) result, or major-10 winning companies cannot explain the rate much in our data. In case of turnkey-alternative, the average rate of successful bidding for 484 cases record 90.20%. The average is 84.89% with 120 alternatives and 91.97% with 364 cases of turnkey. The reason why the rate of turnkey-alternative is lower than that of price procurement auction is the lack of competition as well as the systematic difference. By setting up a model, we are able to explain the difference in rate caused by the respective reason. When we suppose there are 3 bidders in case of price procurement auction for a project that exceeds 100 billion won, the rate is expected to be around 64%. This implies that difference of 26% is caused by the systemic difference and 3% by the lack of competition. Therefore, we conclude that the difference in rate between turnkey-alternative and price procurement auction is caused mainly by the systemic difference. In case of PPP(Public Private Partnership) projects, among 154 projects in total, only 40% has more than 2 bidders that compete. The average number of bidders is 1.88 which is less than 2, and the average rate of successful bids is 90%. In sum, under the price procurement auction, there is strong competition which is reflected by the rate of successful bids. However, there is room to decrease the rate by strengthening the competition under the turnkey-alternative. Also with PPP projects, we expect the rate can be steadily reduced with revived competition among bidders.

다양한 OpenCL 디바이스에서의 OpenCL 2.0 SVM의 성능 검증

김정욱(Jungwook Kim),정우근(Wookeun Jung),이재진(Jaejin Lee) 한국정보과학회 2016 한국정보과학회 학술발표논문집 Vol.2016 No.6

친환경 단일추진제 촉매 반응시스템 설계 및 연소시험에 따른 후속 연구 설계

김정욱(Jungwook Kim),황진하(Jinha Hwang) 한국추진공학회 2023 한국추진공학회 학술대회논문집 Vol.2023 No.11

Nanogels for Biomedical Applications

Jungwook Kim(김정욱) 한국고분자학회 2024 한국고분자학회 학술대회 연구논문 초록집 Vol.49 No.1

NUMA 시스템에서 프로그램 로드 위치에 따른 성능 분석

김정욱(Jungwook Kim),이재진(Jaejin Lee) 한국정보과학회 2018 한국정보과학회 학술발표논문집 Vol.2018 No.6

전동식 부스터 브레이크를 이용한 병렬형 HEV의 회생제동 협조제어 알고리즘 개발

김정욱(Jungwook Kim),고성연(Sungyeon Ko),이가온(Gaeun Lee),여훈(Hoon Yeo),김필구(Pilgu Kim),김현수(Hyunsoo Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5

In this study, a co-operative regenerative braking control algorithm for the HEV with an electric booster brake was proposed and its performance was evaluated. A dynamic model for the electric booster performance simulator and its performance was investigated. In addition, a dynamic model for the 6-speed AT based hybird vehicle was established to develop a performance simulator, and it was combined with the electric booster brake performance simulator. Considering the electric booster brake structure, a strategy was proposed to distribute the braking force and regenerative braking force using the electric booster brake. A co-operative regenerative braking control algorithm was proposed, wherein the regenerative torque is cut off to ensure ride comfort and maintain the braking force during downshift for braking, and then regenerative torque is controlled considering the electric booster brake response characteristic. The combined performance simulator was used to evaluate the performance of the electric booster brake and the co-operative control algorithm, and the results indicated that the desired braking force was maintained and that the deceleration change decreased.

신경회로망을 이용한 축열시스템의 식별기 설계

김정욱(Jungwook Kim),임후장(Hoojang Lim),김동헌(Donghun Kim),이은욱(Eunwook Lee),정기철(Keechul Chung),양해원(Haiwon Yang) 대한전기학회 1999 대한전기학회 학술대회 논문집 Vol.1999 No.7