Institutional peculiarities of the functioning of the economy of Ukraine in the conditions of martial law

The paper shows that the peculiarities of the state of war force the state to reorient its resources and attention to solving critical tasks related to ensuring national security and overcoming the consequences of war. As a result, the priorities of formation, redistribution and use of resources change, which affects the socio-economic model of the state. However, the limiting conditions for adjusting the model of the national economy in the conditions of war are: preserving its economic potential and maintaining viability, which will ensure the future development of the country and its post-war recovery. It is shown that since the beginning of the full-scale invasion of the Russian Federation into Ukraine, the share of the military-industrial complex and related industries in the overall structure of the economy has increased. These changes caused significant difficulties for the economy of Ukraine, but also opened up new opportunities for adaptation and development in crisis conditions. Increasing investment in the military industry, developing new logistics routes and diversifying the economy can become part of the country's recovery and development strategies after the war. It has been proven that positive changes in regulatory and legal support, aimed at facilitating business conditions, are necessary, but not sufficient. In order to solve the fundamental problems of the loss of sales markets and opportunities for continued economic activity, strategic measures are needed, including the restoration of infrastructure, support for exporters, stimulation of business relocation and support of labor resources. It is substantiated that the institutional features of the functioning of the economy of Ukraine under martial law are related to the formation of a hybrid model, which is a synthesis of two models, namely: the model of the military economy, designed to meet military needs and vital goods and services, as well as the model of the civilian economy, designed to meet the needs of the population. A comprehensive solution to the outlined problems requires coordination of the efforts of the government, business and international partners to ensure the stability and development of Ukraine's economy in the conditions of the war and after its end, as well as to ensure its sustainable development in the future.