What are the most important differences between perfectly competitive markets and monopolistically competitive$$ markets?

Part $2$

Unlike in perfectly competitive$$ markets, in monopolistically competitive$$ markets,

Part $3$

A$.$

firms face$$ downward$-$sloping demand$$ curves, and the products competitors sell are identical.

B$.$

firms face horizontal demand$$ curves, and there are no barriers to entry.

C$.$

firms face$$ downward$-$sloping demand$$ curves, and the products competitors sell are differentiated.

D$.$

firms face downward minus sloping demand curvesfirms$$face$$downward$$sloping$$demand$$curves$,$

and there are substantial barriers to entry.

E$.$

there are only a few$$ sellers, and

the products competitors sell are differentiatedthe$$products$$competitors$$sell$$are$$differentiated$.$

Part $4$

Give two examples of products sold in perfectly competitive markets and two examples of products sold in monopolistically competitive markets.

Part $5$

A$.$

Aircraft and automobilesAircraft$$and$$automobiles

are sold in perfectly competitive markets and

Starbucks coffee and Gap clothingStarbucks$$coffee$$and$$Gap$$clothing

are sold in monopolistically competitive markets.

B$.$

The Sony PS$3$ and the Microsoft Xbox are sold in perfectly competitive markets and

Starbucks coffee and Gap clothingStarbucks$$coffee$$and$$Gap$$clothing

are sold in monopolistically competitive markets.

C$.$

Starbucks coffee and Gap clothingStarbucks$$coffee$$and$$Gap$$clothing

are sold in perfectly competitive markets and

cigarettes and beercigarettes$$and$$beer

are sold in monopolistically competitive markets.

D$.$

Apples and orangesApples$$and$$oranges

are sold in perfectly competitive markets and

Starbucks coffee and Gap clothingStarbucks$$coffee$$and$$Gap$$clothing

are sold in monopolistically competitive markets.

E$.$

Wheat and cornWheat$$and$$corn

are sold in perfectly competitive markets and electricity and cable TV are sold in monopolistically competitive markets.