Abstract
<jats:p>The article is devoted to the theoretical and methodological substantiation of the assessment of the effectiveness of innovation activity of enterprises in the context of the post-war recovery of the Ukrainian economy. The study emphasizes that innovation activity is a strategic direction of enterprise development, necessitating constant monitoring of the achievement of planned goals and the evaluation of decision-making efficiency under conditions of high uncertainty. It is established that existing methodological approaches in domestic literature are often fragmented and lack a unified algorithm for calculating the integral effect, which complicates the comparative analysis of results. To solve this problem, the article proposes a comprehensive integral system for assessing the effectiveness of innovation activity. The uniqueness of the proposed approach lies in the simultaneous consideration of five interconnected components of the summary effect: economic, scientific-technical, resource, social, and ecological. For each component, the authors have developed a system of specific indicators. The economic effect is evaluated through profitability, net present value, and income growth; the scientific-technical effect reflects the degree of novelty, automation level, and intellectual property creation; the resource effect characterizes the rationality of using material, labor, and financial resources; the social effect covers the standard of living of personnel, labor safety, and social guarantees; the ecological effect determines the impact of production on the environment and the level of ecological safety. The methodological toolkit of the study involves a multi-stage calculation algorithm. It includes the determination of growth indices for specific indicators, their normalization to a single scale (0 to 1) to ensure comparability, and the use of the expert assessment method to determine the weight coefficients of each component. This approach allows calculating the summary integral effect of the implementation of innovative technologies. The proposed methodology allows trading enterprises to objectively diagnose the state of innovation activity, identify unused reserves for increasing efficiency, and substantiate strategic management decisions. It is proven that a balanced consideration of social and ecological aspects, along with economic ones, ensures long-term competitiveness and the growth of business value in a modern market environment.</jats:p>