Междуотраслови структурни взаимодействия в условията на неопределеност
Inter-branch structural interactions in the uncertainty conditions

Summary/Abstract: The research aims at revealing the uncertainty in economics and formalizing its impact in an input-output framework. An interval input-output model is constructed and a set of procedures is introduced to account for the uncertainty in estimating economic parameters. The main methods for including random and uncertain factors within the input-output model are analyzed. They are grouped according to the approach of defining uncertainty: statistic, heuristic and interval methods and their comparative characteristics are briefly outlined. The presented mathematical apparatus is within the interval approach and it suggests practical procedures for testing different hypothesis for introducing uncertainty in the vectors for output and final consumption on one side and in the input-output coefficients on the other. The model could be applied both to economic analysis of stability of the parameters and to forecasting the vectors of output and final consumption in a consistent interval framework.

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