Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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The Estimation of Domestic Construction Technology Full-Text Services using Tobit Model

Tobit 모형을 이용한 국내 건설기술 원문서비스 가치 추정

  • Jeong, Seong-Yun (ICT Convergence and Integration Research Division, Korea Institute of Civil Engineering and Building Technology)
  • 정성윤 (한국건설기술연구원 ICT융합연구소)
  • Received : 2016.03.22
  • Accepted : 2016.06.02
  • Published : 2016.06.30
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Abstract

We have provided a variety of domestic construction technology related full-text services through the Construction Technology Digital Library system since 2001. CODIL is a system that services the database related to construction technology data. On the other hand, there is growing demand for DB every year, but the required budget is shrinking. Therefore, this study investigated the satisfaction to effectively service the construction technique-related full-text with a limited budget. The monetary value of full-text to express satisfaction with the quantified value was estimated using the Tobit model. The Tobit model is used as a contingent valuation method to estimate the value of non-market goods. This model is the limited dependent variable regression model to observations by censoring the limit of the left side or right side so that a biased outlier is not reflected in the willingness to pay. A survey was conducted by sampling 312 respondents. The mean, median, truncating the willingness of payment were calculated for the six types of the full-text services using the Tobit model. The statistically significant variables affecting the willingness to pay for the full-text services were identified. The mean value of per the full-text service was estimated to be 46,530 won. The significance of this study was to use the Tobit model to estimate the value of the construction technology-related full-text services for the first time in Korea.

우리는 2001년부터 건설기술정보시스템(Construction Technology Digital Library system, CODIL)을 통해 각종 건설기술관련 원문을 서비스하고 있다. CODIL은 건설기술관련 자료를 데이터베이스로 구축하여 서비스하는 시스템이다. 하지만 매년 DB 확충 요구는 커지고 있으나 이에 필요한 예산은 줄고 있는 실정이다. 따라서 제한된 예산으로 국내 건설기술 원문을 효과적으로 서비스하기 위한 만족도를 조사하였다. 만족도를 계량화된 수치로 표현하기 위해 Tobit 모형을 이용하여 국내 건설기술 원문서비스에 대한 화폐 가치로 추정하였다. Tobit 모형은 비시장재의 가치를 추정하기 위해 사용되는 조건부가치 평가법의 하나로써 편의된 이상치가 지불의사액에 반영되지 않도록 좌변 또는 우변의 한계치를 절삭하여 관측하는 제한종속 변수모형이다. 우리는 312명을 표본대상으로 하여, Tobit 모형을 이용하여 6종의 건설기술관련 원문서비스에 대한 평균, 중앙, 절삭된 지불의사액을 계산하였다. 또한 원문서비스에 대한 지불의사액에 영향을 미치는 통계적으로 유의한 설명변수를 파악하였다. 1건당 원문서비스의 평균가치가 46,530원으로 추정되었다. 본 연구의 의의로는 국내에서 처음으로 건설기술 원문서비스의 가치 추정에 Tobit 모형을 이용하였다.

Keywords

References

  1. Bateman, I, J., et al, "Economic Valuation with Stated Preferences: A Manual", pp.65-74, Edward Elgar Press, 2003.
  2. Lee, S. G., Im, G. C, Ham, Y. J. "Public Investment Analysis", pp.112-234, Hyp Hyun Jae Press, 2014.
  3. Hanemann, W. Michael, "Welfare Evaluations in Contingent Valuation Experiments with Discrete Responses", American Journal of Agricultural Economics, pp.332-341, 66(3), August 1984. DOI: http://dx.doi.org/10.2307/1240800
  4. Gujarati D., "Econonmetrics by Example", pp.142-192, Palgrave Macmillan Press, 2011.
  5. Seo, I. S., Ha, M. J., Kwon, K. H., "The Analysis of Effects of Environmental Awareness factors for Willingness to pay for the Air Quality Improvement of Seoul city", The Korean Journal of Public Administration, 19(4), pp. 83-105, 2010.
  6. Lee, S. S., Han, H. N., "Analyzing the Influence Factors on Efficiency of Public Libraries in Metropolitan Cities by DEA and Tobit Model", Journal of Information Science Theory and Practice, 41(2), pp.111-131, 2010. DOI: http://dx.doi.org/10.1633/jim.2010.41.2.111
  7. Kim, K. H., Park, B. H., "Analysis of Accident Factors at Arterial Roads Using Tobit Model", Journal of Highway Engineering, 15(2), pp.131-138, 2013. DOI: http://dx.doi.org/10.7855/IJHE.2013.15.2.131
  8. Kim, H. S., Jung, Y. M, "Development and Application of an Economic Value Assessment Model for Online Information", Journal of the Korean Society for information Management, 22(2), pp.165-184, 2005. https://doi.org/10.3743/KOSIM.2005.22.2.165
  9. Heo, C. U, Kim, Y. P., "Estimation of the Amount of Willingness to Pay by Providing Information for Entrance Fee in Cultural Tourism Festival: The Casde of Yangyang Song-i Festival 2010", Journal of Tourism and leisure research, 24(1), pp.65-83, 2012.
  10. Ryu, H. K., Lee, D. Y., "A Study in the Economic Value Measurement of Domestic Monograph Full-Text Information Services", Journal of the Korea Society for Information Management, 23(4), pp.111-128, 2006. DOI: http://dx.doi.org/10.3743/KOSIM.2006.23.4.111