• Korean Journal of Construction Engineering and Management
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• v.19 no.1
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• pp.74-79
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• 2018

The establishment of an effective bidding system is critical to ensure both the high quality of civil infrastructure and proper earning of contractors. However, the continuous changes of a bidding system in South Korea reveal that problems such as a dumping or high price winning have not been fully resolved yet. This study thus aims at understanding the bidding behavior and strategies of contractors by analyzing a tender ratio in historical data. Multiple regression analysis is conducted to understand the effect of internal and external factors (e.g., estimated cost, combined value of construction performance evaluation) on a tender ratio. The results statistically show that such factors affect the tender ratio an individual bidder determines and have the varying effect on the tender ratio by contractors' firm size.

• 주택과사람들
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• s.102
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• pp.116-143
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• 1998

• International Commerce and Information Review
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• v.7 no.2
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• pp.25-47
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• 2005

This study wishes to analyze that affect in purchasing decision in Telecommunication operation company's international competitive bidding. When submit a tender laying stress on international competitive bidding of the Telecommunication operation companies among specially various international competitive bidding, I wish to investigate game theory enemy by bid method through access method about bid form affecting in buyer's purchasing decision.

• Korean Journal of Construction Engineering and Management
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• v.21 no.1
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• pp.12-20
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• 2020

To estimate collusion effects on bid award in Public Construction works, this paper uses Logit Model, which is a choice variable model. Price, design, competition, and other factors are included, with a special focus on collusion, as independent variables in the model. The empirical results are as follows. First, collusion has little effects on bid award, but great impacts on bidding behavior. Secondly, the score of design is the most important and significant factors among all variables. Thirdly, competition has also significant effects on bid award. Finally it is analyzed that institutional framework and characteristics of public work have some effects on bidding award.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.6D
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• pp.975-983
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• 2006

This study analyzed bidding data for construction projects ordered by the Public Procurement Service under the lowest bidding system since 2001 by using statistical technique in terms of construction types, company sizes, bidding prices. This study brings out construction company's bidding practices and problems caused by the current lowest bidding system and suggests the way to mitigate the problems and to improve the lowest bidding system. The analysis shows the problem of winning a bid in abnormally low price under the lowest bidding system, feared at the start, was realized. As bidding practice has polarized with low and high price, the analysis shows that the lowest bid system's market has a high possibility to be distorted by construction companies' bid strategies. To complement the lowest bidding system's problem, the analysis shows that introduction of the bidding system using particulars where bidders estimate construction quantities and unit prices by themselves is needed.

• Monthly Korean Chicken
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• v.2 no.11 s.17
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• pp.2-8
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• 1996

배합사료 부가세 전면 영세율 적용방침 - 식품위해요소 중점 관리제도 - '식중독유발 닭고기 살모넬라는 극히 일부' - `97년 닭 MMA 물량 입찰 - 계열농가 입식물량 $20{\%}$ 감축키로 - 미국 옥수수 등 사료곡물 생산량 풍작 - 국내 닭고기 생산비 미국의 2배 - 닭고기 소비행태 조사보고서 발간 - 주한 외교대사관 부인 초청 `96국제 닭고기요리 경연대회 개최 - 육계업계, 수매비축자금지원 절실 - `97년 미국 가금육산업 낮은 성장률 예측 브라질, 사료가격 폭등 계열농가는 증가추세 - 영, MOYPARK사 미국 OSI에 팔려 - 닭고기 소비촉진홍보사업 활발히 전개 - 계열주체와 계약조건 개선 희망 - 수입축산물 불합격 증가 - 육계실용계 병아리 16만수 폐기처분 - 러시아 농업지원 강화

• KDI Journal of Economic Policy
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• v.32 no.2
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• pp.144-170
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• 2010

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.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.374-375
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• 2006

전력시장이 경쟁체제로 바뀜에 따라 전력거래소는 적정예비력을 에너지 시장과 분리된 예비력 시장을 통해 확보해야 한다. 발전사업자는 두 시장에서 이득을 얻을 수 있으므로 이득을 고려하여 전략적인 입찰함수를 결정한다. 본 연구에서는 에너지 시장과 예비력 시장을 모형화하고 lemke 알고리즘을 사용하여 경쟁으로 나타나는 균형점을 해석한다. 또한 균형상태의 시장실적을 분석하여 발전사업자의 전략적인 행태를 분석한다. 마지막으로 예비력 시장과 에너지 시장의 참여유인을 한계이득과 관련지어 분석한다.

• Knowledge Management Research
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• v.24 no.2
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• pp.211-240
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• 2023

The purpose of this study is to analyze empirically the effects of changes in policies of the construction industry on the entry and exit in the construction industry and to present the direction of changes in construction industry policies based on the analysis results. The purpose of this study is also to present by analyzing the factors influencing the increase and decrease of builders in the actual construction market. The results of the survey indicate that for general contractors in Daegu and Gyeongbuk, which are mostly small and medium-sized construction companies, the strengthening of registration standards (capital, technicians, etc.) has a significant impact on market entry and exit. However, on the other hand, many of the construction policies implemented to eliminate unqualified contractors in the construction market have had the effect of increasing the number of unqualified contractors. This suggests that construction policies in the construction cycle have not achieved their objectives.