Use the following to answer question: 
-(Table: Total Product and Marginal Product) Use Table: Total Product and Marginal Product.The marginal product of the fourth worker is _____ units per period.
Definitions:
Deadweight Loss
A loss in economic efficiency that can occur when the equilibrium for a good or service is not achieved or is unattainable.
Commodity
A basic good used in commerce that is interchangeable with other goods of the same type.
Tax
a financial charge or other levy imposed upon a taxpayer by a governmental organization in order to fund public expenditures.
Tax Avoidance
The legal practice of arranging one's financial affairs to minimize tax liability within the law.
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