Respuesta :
An economist would BEST describe the scenario as : Barter system
What is a Barter system?
Barter system is when commodities are exchanged against commodities. It is an act of trading goods or services between two or more parties without the use of money.
This type of trading system is an old method of exchange practised for centuries and long before money was introduced.
Examples of barter system are :
- Mangoes are exchanged for bananas.
- Salt is exchanged for onion.
- Shoes are exchanged for clothes.
Therefore, an economist would BEST describe the above scenario as barter system because both Evie and her sister exchanged their items of value between themselves.
Learn more about barter system here : https://brainly.in/question/1821688