Development of the entrepreneurial ecosystem for the agricultural sector in Ukraine during wartime

Enterprises that conduct and ensure the production of agricultural products, their processing and promotion to domestic and foreign markets objectively function in a close relationship, which provides certain savings it also makes the entire chain vulnerable to the negative impact of external factors. The purpose of the study was to conduct an economic assessment of trends in its development under the influence of wartime. Its economic essence, structure, and functional characteristics were theoretically justified, namely: the features of the development of the agricultural sector of Ukraine and the nature of its transformations under the influence of multidirectional changes in the conditions of wartime influence are determined. The interdependence of efficiency and economic efficiency of enterprises belonging to ecosystem sectors was established and methodically justified. Trends in the formation of economic results in a destructive institutional environment were systematised and updated. The problems of modern trends in the development of the ecosystem were methodically processed and the assessment of the following was conducted: structural changes in the composition of business formations, employment of the population in business formations; changes in the material base, the volume of products sold and the profitability of ecosystem enterprises. The assessment was conducted across distinct stages of armed aggression, analysing various sectors of the ecosystem: “agriculture”; “food production”; “manufacture and trade of agricultural resources”; “trade of agricultural products”; and “trade of food products”. The assessment also considered the primary size groups, namely large enterprises and small to medium-sized enterprises. The high tightness of the relationship between the parameters of activity of enterprises of the ecosystem of the agricultural sector was proved, which has a systemic character, and the factor of income from the sale of agricultural products was highlighted as the most substantial for its functioning. The results contributed to understanding the patterns of interdependence between the size and effectiveness of management in agricultural ecosystem enterprises operating as an integral entity under wartime conditions. This understanding is crucial for achieving sustainability, enhancing competitiveness, and, most importantly, ensuring the economic and physical preservation of each specific enterprise