• Korean Journal of Construction Engineering and Management
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• v.21 no.4
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• pp.30-37
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• 2020

The purpose of this study is to compare and contrast the amount of overseas construction orders of South Korea and China by using various time series models that measure the overseas construction orders. Based on the analysis we propose better specification (model selection) with much more predictive power and prove the universality of the model developed by applying our findings with respect to the prediction power of overseas construction orders from other countries viewpoints (verification of generalization). The input variables include Dubai crude oil and exchange rates by country from 1981 to 2019. The VAR model is proposed based on the prediction power test, with respect to MAPE, RMSE, and MAE between the estimates and actual measurements from 2016 to 2019. We also conclude the results of the prediction of overseas construction orders time series of China are again consistent with the actual numbers. These analyses suggest the possibility of developing a comprehensive model that predict the potential construction orders of other countries.

• 월간 기계설비
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• s.308
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• pp.91-94
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• 2016

• Cement
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• s.197
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• pp.13-18
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• 2013

대한건설협회가 시멘트 레미콘 철강재 골재 등 주요 건설자재의 2013년도 수급전망을 발표하였다. 2013년도 건설경기는 정부의 SOC 예산 증가 등으로 토목수주가 다소 증가하겠으나, 지방의 주택수주 및 비주거용 건축수주의 감소가 예상된다. 이에 건설수주는 전체적으로 부진할 것으로 보여 건설자재 수요도 안정세를 유지할 것으로 전망된다. 이에 따라 레미콘 수요량은 1억 979만$m^3$으로 전년도에 비해 4.9%하락하고, 시멘트 수요량도 4,430만톤으로 지난해에 비해 0.5%로 소폭 상승에 그치는 등 전반적으로 안정세를 나타낼 것으로 전망된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.37 no.6
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• pp.1087-1093
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• 2017

The purpose of this study is to present an empirical analysis of determinants of the amount of orders received in construction technology engineering industry sector. Regression model was applied for 5 years from 2010 to 2014 to find out how the factors affecting the amount of orders received each year are different and what trends are observed. Although common significant variables were identified that there is a difference in the impact on their orders received. Specifically, the increase in the number of orders received while reducing the impact on orders received from 2010 to 2013, 2014 showed a slight tendency to increase. And increase in the number of employees shows that the influence of order received is higher in 2014 than in 2010. In addition, the gap between the metropolitan area and the non-metropolitan area has doubled in 2014 compared to 2010, but it is also confirmed that the metropolitan area is still strong. On the other hand, in the case of licensed technology, the only statistically significant variable was the negative correlation between the amount of orders received. Although the influence declined in 2014 compared to 2011, it still had a large impact on the amount of orders received.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.2D
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• pp.247-253
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• 2011

In 2009, the Korean international construction industry showed a great performance, totaling 49.1 billion of contract and then this achievement has been considered a key milestone presenting that the international construction industry is one of the primary export industries of Korea. However, because of the construction firms' equalized levels of technology and price competitiveness, the competition among bidders is becoming more intensive. Moreover, this changing market circumstance leads construction firms to apply for bidding with the lowest price that could not meet the expected profitability of a project. Therefore, to develop various strategies based on project characteristics becomes one of the critical capabilities that construction firms should possess. Based on these motives, this study is aimed to investigate associations among number of bidders, contract award rate, profitability on international projects. For the correlation analysis, a set of data is structured by collecting all projects ranging from 1993 to 2009, excluding projects funded by official development and domestic funds. The number of bidders were grouped depending on project characteristics such as market regions, project types, bidding types, and order organization types. As the result of correlation analysis, contract award rate increases as the number of bidders increase, but the relationship between the number of bidders and profitability is negative. Understanding the correlations among variables can be employed in developing strategies to improve construction firms' competitiveness in the international construction market.

• 월간 기계설비
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• s.244
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• pp.88-88
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• 2010

• 월간 기계설비
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• s.244
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• pp.89-89
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• 2010

• 월간 기계설비
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• s.291
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• pp.107-110
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• 2014

• 월간 기계설비
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• s.277
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• pp.37-37
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• 2013

• 월간 기계설비
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• s.255
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• pp.78-79
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• 2011