Congress passage of new laws significantly increasing the regulation of business would tend to increase per unit production costs and shift the aggregate supply curve to the left.
Production cost is refer to as the cost that occured on the manufacturing of goods and services. The new laws significantly increasing the regulation of business would leads to shift in the supply curve.
If the cost of the production is large then you will get less profit as you would simply just be earning back what you spent and therefore earning nothing out of the production due to the cost of the production.
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