For a Long While, Electricity Producers Were Thought to Be

question 139

Multiple Choice

For a long while, electricity producers were thought to be a classic example of a natural monopoly. People held this view because

• A)the average cost of producing units of electricity by one producer in a specific region was lower than if the same quantity were produced by two or more producers in the same region.
• B)the average cost of producing units of electricity by one producer in a specific region was higher than if the same quantity were produced by two or more produced in the same region.
• C)the marginal cost of producing units of electricity by one producer in a specific region was higher than if the same quantity were produced by two or more producers in the same region.
• D)electricity is a special non-excludable good that could never be sold in a competitive market.

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Definitions:

Rods

Photoreceptor cells in the retina of the eye, highly sensitive to light, and responsible for vision under low light conditions.

Optic Disc

The point of exit for ganglion cell axons leaving the eye. Because there are no rods or cones overlying the optic disc, it creates a blind spot in visual fields.

Sensory Retina

The part of the retina that contains photoreceptor cells (rods and cones) responsible for converting light into electrical signals for vision.

Macula Lutea

A region in the retina responsible for high-acuity vision where a high concentration of photoreceptor cells are located.