The two approaches are published regularly by the CBS and its office branches in provincial level. The last one is only calculated in line with the calculation of Regional Input-Output Table. Expenditure approach expresses GRDP as the total of final demand components, covering the consumption expenditure of households and private non profit institutions, government consumption, gross domestic fixed capital formation, increase in stock and net export within a certain period.
Net export is the export minus import.
Income approach expresses GRDP as the total income by production factors enggaged in the production process in a region. The income components of the production factors may take the form of wages or salaries, land rent, capital interest and profit margin. The profits include income tax and other direct taxes. In this definition, the GRDP also contains depreciation and net direct taxes. Gross Regional Product is the sum of Gross Domestic Regional Product and the net factor income from abroad and from other regions.