Dokumentation og international benchmarking af bygge - Danmarks ...

Development in output price index and cost index in Germany and Austria(2000-2009).12011511010510095908580Index 2005 = 1002000 2001 2002 2003 2004 2005 2006 2007 2008 2009Output price index- GermanyOutput price index- AustriaConstruction cost index -GermanyConstruction cost index -AustriaOutput price indices are seen to increases more slowly than input priceindices – construction cost indices.A calculation exampleAn overview over the different stages in the process of calculation andaggregation of the output price index for construction is given bellow:For all formulas, the following abbreviations are applied:- b: priced construction component (with the standard unit and the standardquantity)- B: number of priced construction components- t: current survey period (for which the calculation is performed)- t-1: period before the current survey period (previous period)- t0: base period (as evidenced by: Indices = 100)- p: price of the construction component- I: calculated index- f: respondent- F: number of respondents- c: construction type- C: number of construction types- r: Large Region- R: number of large regions- q: WeightingElementary indicesAt the first stage, the elementary indices are calculated based on recordedindividual prices, for each respondent, for period t, for a particular constructioncomponent and for a given region. Elementary index for componentb, for respondent f in the region r for period t is:81