By Whho.
More Microeconomics tool, rather than Macroeconomics. It is going to contain Taxation, Public Goods, Externality and so on.
Lecture 1
Firms and Households interact in many ways,
Firms provide money to Households, while Households provide labor force to firms
What government would provide to the firms?
Eg:
- National defence
- Infrastructure, like bridges, highway etc.

The circle of the main public economy.