Kruithof´s Double Factor method implementation for calculation the economic input-output table

One of the formulas that are used in telecommunications network planning is Kruithof´s Double Factor KDF method. Kruithof´s Double Factor method is used to calculate the distribution of traffic matrix point to point in year (t + n), which is known only the traffic distribution matrix in year (t) and the amount of traffic time in year (t + n). The Economic Input-Output (I-O) table is a statistical framework showing the interdependence between economic sectors in particular period. The table is presented in matrix form. Each row describes output of each sector distributed among intermediate and final demands, while each column shows the intermediate and primary inputs obtained from other sectors in a production process. The cost to compute input-output tables are very expensive, so in most countries of the world, such as Indonesia, input-output tables are only counted once every five years, whereas the input-output table is needed every year. In this research, we conducted multi-disciplinary research, the science of which is used in the field of telecommunications engineering utilized in the field of economics. We use Kruithof´s Double Factor Method for calculation The Input-Output Table of Indonesia´s Gross Domestic Product.