Which of the Following Is a Common Barrier to Entry

question 118

Multiple Choice

Which of the following is a common barrier to entry in a monopoly market?

• A)Economic profits greater than zero for the monopolist.
• B)A rising long-run average total cost curve.
• C)A patent on a new product.
• D)A vertical supply curve.

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Definitions:

Axon

A long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body.

Dendrite

Short branched extensions of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.

Myelin Sheath

A fatty layer that surrounds the axons of some neurons, enhancing the speed of electrical signal transmission.

Node of Ranvier

A gap in the myelin sheath of a nerve fiber that facilitates rapid conduction of nerve impulses along the axon through saltatory conduction.