How do economists use economic models

Economists use economic models to study particular aspects of economic reality. To do so, they develop a simplified model of reality in which only a few variables are included, and everything else is held constant or ignored.

Explanation:

For example, the most famous economic model is the model of supply and demand, which is used to analyze how consumers and producers interact in the market for a good or service, and how this interaction determines the price.

As we can see, in this economic model of supply and demand, many other things like social class or history are left aside, and only a few variables are included.

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.

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