According to the OECD, human capital is defined as: “the knowledge, skills, competencies and other attributes embodied in individuals or groups of individuals acquired during their life and used to produce goods, services or ideas in market circumstances”. Hence statement 2 is correct.
Intangible wealth of a nation comprises of the skilled population, human resource base, culture, arts etc. Hence statement 4 is correct.
Human capital formation is the outcome of investments in education, health, on-the-job training, migration and information.
As per RBI, Gross capital formation refers to the 'aggregate of gross additions to fixed assets (that is fixed capital formation) plus change in stocks during the counting period. Hence statement 1 is incorrect.
Tangible capital is also GCF is it involves largely infrastructural components. Hence statement 3 is incorrect