“…The appropriateness of using the concept of human capital intellectualization at different levels is substantiated by the already available research of scientists considering different aspects of human capital development: innovation [23,28], digitalization [11,12], education [6,13], integration [7,18], sustainability [19,35] at the macro-level [36,43,50], regional level [40,51], and micro-level (enterprise or individual) [10,18,37,43], etc.…”