با سلام خدمت کاربران عزیز، به اطلاع می رساند ترجمه مقالاتی که سال انتشار آن ها زیر 2008 می باشد رایگان بوده و میتوانید با وارد شدن در صفحه جزییات مقاله به رایگان ترجمه را دانلود نمایید.
عنوان انگلیسی مقاله:
Is the private sector more efficient? Big data analytics of construction waste management sectoral efficiency
ترجمه فارسی عنوان مقاله:
آیا بخش خصوصی کارآمدتر است؟ تجزیه و تحلیل داده های بزرگ از کارآیی بخش مدیریت زباله های ساختمانی
Sciencedirect - Elsevier - Resources, Conservation & Recycling, 155 (2020) 104674. doi:10.1016/j.resconrec.2019.104674
Jinying Xua, Weisheng Lua,*, Meng Yed, Fan Xuea, Xiaoling Zhangb, Billy Fook Pui Leec
Efficiency disparity between the public and private sectors is a non-trivial issue that concerns fundamental
choices of socio-political-economic systems. Waste management academia and industry also wrestle with issues
relating to the choice between public and private sectors. To examine the disparity exclusively caused by
“sector”, in statistics language, one needs data that is sufficiently big to control many other confounders, e.g.,
sites, project types, and construction technologies. This paper attempts to ascertain the construction waste
management (CWM) efficiency disparity between the public and private sectors by using big data in Hong Kong.
The waste disposal records of 132 projects, including 70 public and 62 private projects, were extracted and
analysed. By comparing the waste generation flows (WGFs) and accumulative WGFs, it is found that, by and
large, there is no significant efficiency disparity in CWM between the two sectors. However, a closer investigation
discovered that the private sector outperforms their public counterpart in demolition projects, while
the latter performs better in foundation and new building projects. Although there are private projects with
higher CWM performance, their divergence between the best and average projects are larger than public ones.
Such findings thus reject casual remarks that the private sector is more efficient in CWM. The underlying reasons
maybe the waste management index practice promoted in public projects while the private sector is often incentivized
to perform better CWM to save waste disposal levies. Future research is recommended to delve into
the causes of the efficiency disparity and introduce CWM interventions accordingly.
Keywords: Public-private disparity | Economic efficiency | Construction waste management | Big data | Hong Kong