Marginal productivity theory assumes that a worker’s income is a function of the contribution of that worker to the value of the output. in business, this is called the "value-added" approach.
There is a correct theory called marginal productivity theory. Wages are paid at a level equal to the marginal revenue product of labor, the MRP (value of the marginal product of labor). MRP is the increase in income caused by the increase in output produced by the last employed worker.
The marginal productivity theory of income distribution proposes that each individual should receive income based on their contribution to total output. The marginal productivity theory of income distribution has been criticized for the following reasons. Income from inheritance is inconsistent with the theory.
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Answer: C. The court concluded that Microsoft violated the Sherman Act
Explanation: The case between United States v. Microsoft Corporation which took place at the
United States Court of Appeals for the District of Columbia Circuit during the period February 26–27, 2001 and was finally decided June 28, 2001.
It was decided by the District Court that Microsoft violated the Sharma Antitrust Act of 1890.
Answer: Degree of Operating Leverage
A Tech = 2.75
Z Tech = 3
Explanation:
As defined in question itself,
Degree of Operating Leverage = 
As here, it is provided that profit for both the companies are same amounting $4 million.
Although the fixed cost differ by $1 million.
A Tech Degree of operating Leverage = 1 +
= 2.75
Z Tech Degree of Operating Leverage = 1 +
= 3
This clearly demonstrates that A Tech will reach its break even faster than the Z Tech as the ratio of fixed cost to variable cost is lower in A tech in comparison to Z Tech.