What is the name of the economic system where the government, or another central administration, regulates supply and prices?

If delta airlines were to significantly change its fare structure and flight schedule to enhance its competitive position in response to aggressive price cutting by southwest airlines, this would be an example ofanswers: explicit collusion.tacit collusion.competitive dynamics.a harvest strategy.

The adjusted trial balance for china tea company at december 31, 2018, is presented below:

What are some examples of types of investments on the part of manufactures that result in growth? how does this improve a nation's standard of living?