ECONOMIC-MATHEMATICAL MODELING OF THE EFFICIENCY GROWTH OF THE AGRARIAN SECTOR OF THE UKRAINIAN ECONOMY

The article analyzes all stages of production of both raw materials and finished agricultural products common for the modern agricultural production in Ukraine. Both the external and internal factors influencing the primary and secondary production of agricultural products were studied. The markets for agricultural raw materials and finished products, namely, the national and international markets for agricultural products, were also considered. Based on the results of analysis, the economic-mathematical model of production and processing of agricultural products as a single economic system has been constructed . The model was built taking into account the most vital requirements of each of the selected stages,. Each of the five stages of production, that were distinguished, was described using mathematical formulas. For some of the steps, the Cobb-Douglas multiplicative production function, modernized for the specifics of agricultural production, was used. The function used includes the influence of the areal factor on the gross agricultural production, as well as classic labor and capital factors. The problem of increasing the efficiency of the agricultural sector of Ukraine's economy was formulated and solved Using this economic-mathematical model of production in the development of agricultural policy and macroeconomic planning will allow to consider changes in the economy of the agricultural and processing industry, to assess the possible consequences of new activities in state economic policy, implementation and monitoring of the long-term negative and positive trends of production and processing of agricultural products. Moreover, due to this model, it could be possible to increase the volume of earnings inforeign currency, which, in turn, can be used as investment not only in agricultural but also in other sectors of the national economy.