Dokumentation og international benchmarking af bygge - Danmarks ...

its long run plans, to draw up a regulation in this domain. The demands ofthe Danish Construction Association should also be considered.Which type of civil engineering work to include in the index depends onthe data available. Regarding civil engineering work, a single constructionproject can last from a few months up to several years. The informationon current civil engineering’s projects can be provided by Counties. Accordingto the Eurostat definition of an output price index, neither residencecommunities nor non-residential buildings should be included.Requested competences and resourcesDeveloping and maintaining output price indices following the three differentmethods do not call for the same kind of competences in the staff ofStatistics Denmark.The component cost method requires professional expertise, which isalready present in the institution because the method is already used toproduce the construction component for the European purchasing powerparities programme.The matched models method is relatively easy applicable. The methodnecessary corresponds to the method applied in producing the producerprice index. The required competences are thus already present.The hedonic method requires a lot of specialized competence, particularlyin econometrics. This fact has in other countries proven to be thecause of great vulnerability in the indices. If the method is not fully understoodsevere fault can be made and it is not straight forward to avoid it.Since Statistics Denmark is a relatively small institution, it can prove verydifficult to maintain the necessary skills.Finally it should of course be investigated in more detail what the totalcosts of developing and maintaining an output price index compiled bythe different methods will be.105