The object of the study is the process of the industrial innovation efficiency evaluation at separate stages of the product life cycle. The subject of the study is a set of theoretical and methodological principles and practical developments which provide the economic evaluation of the industrial innovation efficiency at different stages of the product life cycle. The scientific novelty of the study substantiates the theoretical and methodological principles and practical recommendations for the economic evaluation of industrial innovations at separate stages of the product life cycle. The essence of such economic categories as «efficiency», «effectiveness», «economy» and «productivity» was improved by separation and generalization of the most common and different for these close concepts features as well as formulation of the author's definitions which allows understanding the more accurate and objective description of each of these categories and excluding the cases of replacement of one concept by another. The dissertation also improved the system of indicators and methods for evaluating the efficiency of industrial innovations which, in contrast to the existing approaches, allows ranking and determining the weights of the efficiency indicator groups and separate indicators in each group for each stage of the product life cycle separately and taking into account their features. The methodical approach to the economic evaluation of the innovation product efficiency at different stages of the product life cycle was further developed, which, in comparison with the existing practice, allows systematizing the methods of evaluation and control of innovations at each stage of the life cycle, starting from the idea inception by the time when the innovation comes out from the market as well as making effective and timely management decisions. A conceptual approach to comparing the prices in different currencies and in different years and bringing them to the modern ones was developed, and it takes into account the devaluation of stable currencies that allows a reasonable comparison of prices, production, turnover and other indicators of industrial innovations throughout the product life cycle to be conducted, avoiding distortions caused primarily by the inflation and other economic factors. Methodical principles for evaluating the efficiency of industrial innovations at separate stages of the life cycle was further developed, and their distinctive feature is the formation of an individual system of indicators for each stage based on the use of expert analytical methods, their ranking and selection of the most influential ones on the basis of the Pareto principle, with their subsequent transformation into the integral indicator of the innovative product efficiency evaluation at separate stages of the life cycle. The classification of innovative products depending on the level of the product efficiency at separate stages of the life cycle was further developed, which in contrast to the existing ones provides recommendations for R&D, development of new products, modernization of the existing ones and withdrawal of the inefficient, that allows industrial enterprises to manage their product portfolio more effectively and determine the point of transition of innovative products from one stage to another, to develop specific marketing strategies and tactics and to impact on the duration and course of the product life cycle through the use of effective solutions.
Key words: economic evaluation, efficiency, innovations, industrial innovations, product life cycle, classification of innovative products, strategy, innovative activity of an enterprise.
