Data preparation and harmonization for quantification of ICT sectors contributions

Information and communication technology (ICT) is generally found to be the driver of many economic activities and is considered as the main factor promoting economic growth and sustainable development of modern economies. Given the importance of ICT sectors and the insufficient empirical background of this topic, in this paper methodology of data preparation and harmonization for quantification of ICT sectors contribution is improved. Improved methodology of data preparation and harmonization is based on appropriate mathematical methods. The main data source in this research is input-output table for Croatian economy for the domestic production. The input- output table is made on the basis of 64 productive sectors linked to the 2007 National Classification of Activities.