IOkertojen
IOkertojen is a term used in economic analysis to refer to the matrix of input–output coefficients that link the outputs of different sectors to the inputs they require. In Finnish-language discussions, IOkertojen describe how much input from each sector is needed to produce one unit of output in another sector, forming the core of the Leontief input–output framework.
Mathematically, the IOkertojen are organized as a matrix A with elements a_ij, where a_ij represents the amount
Calculation and interpretation: each column j of A shows the direct inputs from all sectors needed for
Limitations and context: the IOkertojen approach assumes linear, fixed technology with constant coefficients, ignores price changes,
See also: Leontief input–output model, input–output analysis, economic multipliers.