By Calculating a Concentration Ratio,economists Measure the

question 92

Multiple Choice

By calculating a concentration ratio,economists measure the

• A)degree to which a monopolist's output is lower than in perfect competition.
• B)control of a monopolist over its input prices.
• C)fraction of total industry sales accounted for by the largest firms.
• D)degree to which firms in the industry use similar technologies.
• E)concentration of firms in one geographic location.

---

Definitions:

Gliomas

A type of tumor that occurs in the brain and spinal cord, arising from glial cells.

Meningiomas

A type of brain tumor that arises from the meninges, the protective membranes that cover the brain and spinal cord.

Metastatic

Metastatic refers to the process by which cancer cells spread from the original (primary) site to other parts of the body, forming new (secondary) tumors.

Blood-Brain Barrier

A semipermeable barrier between the brain's blood vessels and the brain tissue that prevents certain substances from passing through.