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What Type of Device Reads the Strip of Magnetic Material

question 135

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What type of device reads the strip of magnetic material on the back of your credit card?


Definitions:

Producer Surplus

The difference between the amount producers are willing to accept for a good or service versus what they actually receive.

Allocative Efficiency

A state of resource distribution where it is impossible to make any one individual better off without making someone else worse off.

Productive Efficiency

A situation in which an economy or entity is producing goods and services at the lowest possible cost, utilizing all its resources efficiently.

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