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Minimum wage by state by year. In the United States, the minimum wage is set by U.S. labor law and a range of state and local laws. [4] The first federal minimum wage was instituted in the National Industrial Recovery Act of 1933, signed into law by President Franklin D. Roosevelt, but later found to be unconstitutional. [5]
Satellite phone systems can be classified into two types: systems that use satellites in a high geostationary orbit, 35,786 kilometres (22,236 mi) above the Earth's surface, and systems that use satellites in low Earth orbit (LEO), 640 to 1,120 kilometers (400 to 700 miles) above the Earth.
The marginal private cost is less than the marginal social or public cost by the amount of the external cost, i.e., the cost of air pollution and water pollution. This is represented by the vertical distance between the two supply curves.
Marginal cost: The increase in cost caused by an additional unit of production is called marginal cost. By definition, marginal cost (MC) is equal to the change in total cost ( TC) divided by the corresponding change in output ( Q): MC(Q) = TC(Q)/ Q or, taking the limit as Q goes to zero, MC(Q) = lim( Q→0) TC(Q)/ Q = dTC/dQ.
Competition reduces price and cost to the minimum of the long run average costs. At this point, price equals both the marginal cost and the average total cost for each good (P = MC = AC). The theory of perfect competition has its roots in late-19th century economic thought.
A free market does not directly require the existence of competition; however, it does require a framework that freely allows new market entrants. Hence, competition in a free market is a consequence of the conditions of a free market, including that market participants not be obstructed from following their profit motive.
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