Which term is applied to powers shared between the state and federal government?

The term applied to powers shared between the state and federal government are known as "Concurrent power".
Concurrent powers in countries with a federal government refer to such powers that are shared by both the government and every constituent political unit, for example, a state or province. These include collecting taxes, Setting up court systems, Charter banks etc.

- "made the south's economy grow rapidly and a small effect that a lot of people don't know is that it made the more demand of slaves and cotton products. and also new states formed due to plantations growing in size."

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