Question

multiple choice question
what aspect of the market defines the crucial difference between a pure monopolist and a purely competitive seller?
the supply curve
the demand curve
output
price

Explanation:

In a purely - competitive market, the firm faces a horizontal demand curve and is a price - taker. A pure monopolist faces a downward - sloping market demand curve and has market power to set prices. The demand curve is what differentiates their market behavior.

Answer:

The demand curve