Gunpowder, paper, printing, and the compass are sometimes called the Four Great Inventions of Ancient China. Kites were first used as a way for the army to signal warnings. Umbrellas were invented for protection from the sun as well as the rain. Chinese doctors knew about certain herbs to help sick people.
What to produce, how to produce, and for whom to produce.
Answer:
It leads to a decline in the skilled personnel in a country hence decreased development rate.
