Suppose That There Are Two Industries,A and B

question 89

Multiple Choice

Suppose that there are two industries,A and B. There are five firms in industry A with sales at $5 million, $2 million, $1 million, $1 million, and $1 million, respectively. There are four firms in industry B with equal sales of $2.5 million for each firm. The four-firm concentration ratio for industry A is:

• A) 0.9.
• B) 1.0.
• C) 0.8.
• D) 0.7.

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Definitions:

Precipitator

An environmental control device, such as an electrostatic precipitator, that removes particles from a flowing gas using the force of an induced electrostatic charge.

Air Filter

A device that removes particles, such as dust and pollen, from air to improve quality or protect machinery by preventing the accumulation of contaminants.

Static Electricity

The buildup of electric charge on the surface of objects, usually caused by friction between materials.

Electrons Moving

The movement of electrons through a conductor, which constitutes the basis of electric current.