Answer:
(a)They encourage firms to invest more in research and development in order to boost technology.
Some of the laws or government programs developed to encourage it include:
- Granting patents for inventions
 - Issuing grants from the National Science Foundation
 - Issuing grants from the National Institute of Health
 - Offering tax credits for R&D costs
 
(b) They encourage individuals to save more in order to boost the physical capital stock
- Lowering tax rates on incomes earned through savings
 - Permitting citizens to open health and savings account
 - Offering retirement savings plan
 - Coming up with 529 education savings account
 
(c) They encourage individuals to invest more in education in order to boost the stock of human capital
- Establishment of a system of public schools and universities
 - Government-provided student loans
 - Provision of education subsidies for veterans