The ontological dimensions of economic science are revealed through the prism of analysis of the economic world. Object based ontology of economic science is outlined with the use of the fundamental economic terms of "economic existence" and "the economic existing" In particular, the existing of the first order is realized in economic reality, the existing of the second order - in economic actuality, and the existing of third-order - in the art of the economics (economic policy). The author focuses on the two components of the economic foundation of the existing: resources and institutions.

Keywords:economic world, ontology, economic existence, the economic existing, economic reality, economic actuality, the art of economics

The author considers the epistemological structure of the economic world in philosophical and scientific dimen-sions and formulates the basic requirements for economic knowledge, such as: completeness, representative-ness and adequacy, determination, certainty, neutrality, impartiality, a priori predetermination for irresistibility (apodictity) and complete display of object, and consistence of initial principles. Economic knowledge evolves along the following epistemological ranks: the existing of the 1st order – economic reality (potential being), the existing of the 2nd order – economic reality (accident being), and the existing of the 3rd order – the art of eco-nomics (secondary essentialities). It is noted that scientific rationalism creates the necessary and reasonable preconditions for a homogeneous and integrated system of economic knowledge

Keywords: epistemology, theory, knowledge, ontology, causality, structure, existence, discourse

The article is dedicated to methodological problems of economic science. The aim is justification of the importance of methodology for all concepts and branches of economic science. The author considers the genesis of economic methodology, the main methodological lines, the philosophical component of economic methodology, key methodological views of economic theory, the mathematical paradigm in economic methodology, and the integrative function of methodology. The article reveals the bimodal character of economic methodology and its philosophical and mathematical principles.

Keywords: methodology, discourse, naturalism, constructivism, realism, post-modern

The article deals with the philosophical principles, and philosophical reflection of economic science. The article argues that the philosophy of science is the methodological and theoretical basis of the philosophy of economics. Five dimensions of the philosophy of science reveal its main content and have a fundamental character both for their own philosophy, and for theoretical and empirical sciences, including the economics. Ontological cut determines the subject field, the deep meaning of the sciences of nature, society and man; the epistemological one reveals the genesis, structure, dynamics and functions of scientific knowledge; the axiological one focuses attention on value systems and landmarks; the logical one looks for the relationship between the logic of the universe and the logic of its scientific reflection; and the methodological one explores methods and ways of improving and obtaining new knowledge.
The proposed article, on the one hand, rests on the historical heritage of the philosophical foundations of economic existence, which gives it a philosophical dimension and creates an appropriate world outlook. Meaning a general philosophical, metaphysical vision of the economic world. On the other hand, there is a problem of the so-called philosophical calibration (testing) of economic science, economic theory in the context of modern philosophical standards through the means of theoretical and practical philosophy. Different views on the subject of the philosophy of economics are analyzed. The positivist interpretation of the philosophy of economics in the broad sense includes economic ontology, methodology and epistemology of economics, as well as rational choice, decision-making theory, game theory, and economic ethics and justice.
In the narrow pragmatic sense, the philosophy of economics is interpreted as interaction of people, institutions (firms, countries) in their historical development with the application of the theory of games, and linear and dynamic programming.
The article considers conceptual interpretations of the philosophy of economics, in particular, the philosophical (metaphysical) and historico-economic interpretations. The author provides a comparative description of the "new", "old" and "non-mainstream" (non-orthodox) philosophy of economics. Presented the interpretation of positive and normative economics by philosophers and economists.

Keywords: philosophy of science, philosophy of economics, ontology, epistemology, methodology, positive economics, normative economics

The article considers current trends of digitalization of the economy, which cause significant theoretical and methodological changes and a new applied vision of economic processes. Theoretically, the digital economy (DE) is the core of the modern networked economic system, and in practice, it is a growing sector of national and global economies. In current conditions, properly economic laws of DE are determined by the prevailing concepts and doctrines (neoclassical and neo-institutional ones). We are talking about the widespread use of marginal indicators (marginal costs, marginal capital, marginal labor, etc.) and concepts such as institutions, trust, risk, security, and others. The essential features of IT as a new phenomenon in the socio-economic system are complemented on an interdisciplinary basis by the epistemology of informational and computer sciences, and electronic technologies and platforms. Combination of the categorical apparatus of economic mainstream and informational and computer sciences, and their synergistic synthesis give grounds to state the emergence of complexity economics, which is characterized by fundamentally new dimensions and parameters.

Keywords:digital economy, paradigm, blockchain, logic, mechanism, cost, platform, complexity.

The article examines logical aspects of the economic universe through the lens of its key elements – resources, institutions and interconnections between them. It is emphasized that starting from the New Times one of the main issues of economic science has been the study of logic, the historical tendency of movement of two key factors (resources): capital and labour. At this stage logical preconditions of the analysis of natural, financial, technological resources acquire considerable significance. The logic of capital and labour is investigated in the context of economic heritage of A. Smith, K. Marx, R. Luxemburg, representatives of the Cambridge school, modern authors (T. Piketty). Starting from ХІХ century, the correlation between capital value and labour value in the national income has been considered the main integral indicator reflecting the state and logic of labour. The logic of natural resources is most fully exemplified by the concept of sustainable economic development, which reflects the content and types of interrelations between the society and the natural environment both at present and in future. At the same time access, distribution and use of resources should take place on the basis of the expenditures-income principle and continue for each generation in a logical and fair way. The logic of technological resources is revealed primarily through the lens of industrial revolutions. Logical dimensions of financial resources have been represented in the works of J.S. Mill, J. Schumpeter and Ch. Kindleberger. Ch. Darwin’s theory of evolution is the basis of institutional logic. Traditions, customs, their evolution, influence on an individual’s behaviour and the philosophy of American pragmatism were the foundation of logic of Veblen’s institutionalism. The logic of relations between resources and institutions is based on the works of B. Russell, A. Whitehead and R. Carnap. Interaction of resources and institutions has been researched in the light of using resources by different generations of human communities and was called ‘the logic of the play between generations’.

Keywords:logic, resources, institutions, capital, labour, evolution, revolution, habits, traditions

Economic resilience of the system is one of the main indicators that characterizes its qualitative and quantitative aspects, response to external and internal shocks and challenges. The problem of resilience becomes especially important in extreme situations (economic and financial crises, ecological and natural disasters: typhoons, floods, earthquakes, etc., political revolutions, military conflicts). The current Russian-Ukrainian war has become a serious test of the stability of the domestic economy, in which relative macroeconomic balance is ensured in extremely difficult conditions due to the maximum mobilization of domestic resources and effective foreign aid. An important component is institutional stability, i.e. operational response to changes in the economic situation of authorities and management at all levels, legislative institutions, financial and banking institutions, foreign economic sphere, attention to such attributes of institutionalism as trust, social optimism, mentality, traditions, habits, etc. In a gener-alized form, at the theoretical level, institutional sustainability is proposed to be con-sidered in the article in the context of institutional logic in three hypostasises at the micro-, macro-, and geoeconomic levels. Institutionalism, including economic theory, is dominated by traditional, formal logic, which mainly uses natural (scientific) lan-guage. Consciously or intuitively, the main laws of logic are taken into account: identi-ty, contradiction, the Law of Exclusion, sufficient reason. The logic of evolutionism is considered the basis of institutional logic, which provides a general idea of changes in all components of the institutional environment. In the institutional economic theory, two levels of institutional logic are visible: the macro level (Veblen and the old Ameri-can school, North) and the microlevel (Coase, Williamson, etc.). In the publications of the last quarter of the 20th century the logic of the global (mega) level is also analyzed. Evolutionism is the basis of the logical construction of institutional logic in economic theory. Generalizing indicators that synthesize different approaches of institutional logic regarding economic sustainability are the institutional logic of sustainability (ILS) and the logical index of sustainability (LIS). Institutional logic of the microlevel was initiated by R. Coase, continued by O. Williamson and others. The logic of transaction costs of R. Coase is formulated in two theorems: regarding zero costs, ownership and economic results, and the principle of internalization. The second theorem was called comparative logic of economic organization. In critical relation to both of Coase's theorems, they remain basic constructs of microlevel resilience. Among the indicators and criteria of macro-level economic resilience, monetary components are of leading importance, which, under the conditions of a free market, provide a kind of warning signals to the economic system as a whole. A feature of this approach was the transformation of the monetary component into a system of monetary and financial analysis. This reflects fundamental qualitative changes in recent decades regarding the structure of the economy, in which the financial subsystem acquires dominant (key) importance, affecting aggregated macroeconomic indicators: growth, inflation, employment, etc. Globalization, that is, the megalevel, its economic resilience, inevitabil-ity and irreversibility are characterized by three deterministic logics: technical (technological), economic and political

Keywords:logic, institutionalism, resilience, evolutionism, micro-level, macro-level, megalevel, political logic, factor logic