What is a sequential$$ game?

Part $2$

A sequential game is a game

Part $3$

A$.$

without

bargaining between firmsbargaining$$between$$firms$.$

B$.$

where all firms act simultaneously.

C$.$

with

a cooperative equilibriuma$$cooperative$$equilibrium$.$

D$.$

where one firm acts first and then the other firms respond.

E$.$

without a$$ subgame$-$perfect equilibrium.