Onyshchenko I. Aggregation of "input-output" models for ecologically balanced economy.

Thesis is devoted to further development of theoretical, methodological and methodical approaches to building of aggregated economic-mathematic and ecological-economic models and to apply of aggregation results in macroeconomic analysis. The aggregated to one-dimensional equation Leontief model is built and existence condition of this model is obtained. Leontief-Ford model is aggregated to model with less number of sectors and determined existence conditions of that aggregation. Obtained results for static Leontief model are extended on dynamic and non-linear "input output" models. Aggregation results of the dual "input-output" model are extended on dynamic and non-linear cases. It is also regarded aggregation results applying for analysis of economy of a country.