level of global threats. It initiated the acceleration of
processes of end-to-end implementation of
information and communication technologies in
innovative and traditional sectors of the economy, as
well as in the system of public administration, the
wide spread of remote formats of employment and
service provision, the formation of value chains using
information platforms and “big data” technologies,
etc. Under these conditions, theoretical and
methodological approaches to the interpretation of
economic growth sources and to the tools
composition for realizing their potential require
further development. Understanding the growing role
of high-tech sectors of the economy and human
capital in aggregate product formation, as well as
knowing the reasons and consequences of increasing
the level of uncertainty of environmental factors for
making effective management decisions, will allow to
develop effective anti-crisis measures and justifying
the tools for transition to sustainable economic
growth.
The scientific hypothesis of this study is the
assumption that innovation is becoming an
endogenous source of economic growth and the
growing role of investment in innovative projects.
The study goal is to identify the elements of impact
mechanism of technological innovation on the growth
rate of aggregate income of the state and its
constituent regional entities. In accordance with the
goal, the following tasks are solved: identification of
the role of technological innovation in increasing
labor productivity in traditional and innovative areas
of economic activity as a source of growth of
aggregate income; empirical testing of the thesis
about the labor productivity dependence on
investment in innovative projects (on the example of
the regions of the Volga Federal District).
The economic growth problems have traditionally
been at the center of researchers' attention, regardless
of their affiliation with economic schools and
currents. In accordance with the scientific hypothesis
of the study, as its theoretical basis, the concepts
devoted to the analysis of innovative processes
impact on the directions and rates of increase in the
main macroeconomic indicators are considered.
It is advisable to distinguish four groups of
theoretical models (Kaneva, M. A., Untura, G. A.,
2017) that have a great epistemological potential for
explaining the innovation and investment factor in
ensuring total income growth. The first group of
macroeconomic models includes: R. Solow's
neoclassical model of exogenous growth (Solow, R.,
1957), which is based on the use of the production
function and proceeds from the recognition of
scientific and technological progress as an external
factor ensuring continuous growth of output per
employee; P.M. Romer's growth model (Romer, P.
M., 1986), which recognizes the endogenous nature
of technological progress and considers knowledge as
a factor of non-decreasing return on capital; G.M.
Grossman's and E. Helpman's three-sector model
(Grossman, G. M., Helpman, E., 1991), which
recognizes the key role of technological innovations
that compensate for the diminishing returns to
production factors, etc.
The second group of approaches to the
interpretation of the economic growth sources is
represented by models of innovation and includes:
linear models of innovation (McLaurin, W. R., 1953
and others); theories of innovation systems, taking
into account the composition of participants, the
content of their interactions and the composition of
regulatory institutions (B.-A. Lundvall. 1985, I. Yu.
Shvets, 2019 etc.); theories of innovation diffusion
(T. Hagerstrand, 1976, etc.); models of cyclic
innovation dynamics (N.D. Kondratiev, 1993, etc.).
Within the framework of the third group of works,
the validity of the above theoretical models was
confirmed using empirical material (testing of the
provisions of neoclassical models of economic
growth in the works of R.J. Barro and K. Sala-i-
Martin (Barro, R. J., Sala-i-Martin, X., 1995), the
model of the production function of knowledge by D.
Romer, 1990, etc.). The fourth group of works
includes the results of the spatial approach to the
innovation process explanation (the theory of
“growth poles” and “development axes” by J.
Budville 1961, etc.; the world-system concepts of I.
Wallerstein 1998, etc.), the theory of regional growth
P. Krugman, M. Fujita 1995 and others.
However, despite the existence of many works on
economic growth in relation to innovation, a number
of problem aspects remain unexplored adequately. A
number of provisions and conclusions reflecting the
relationship between innovation, investment and
dynamics of aggregate income require further
empirical verification. The regional aspect of
economic growth has not been adequately analyzed.
All this determines the need for further study of the
sources of progressive macroeconomic dynamics in
the context of changes in the role of innovation in
their composition and the nature of the technical and
economic structure.