The supply and demand conditions for a manufacturing firm are given in Table 12_04. The

third column represents a supply curve without taking the social cost of pollution into

account. The fourth column represents the supply curve when the firm is required to take the

social cost of pollution into account. Identify the equilibrium before the social cost of

production is included and after the social cost of production is included.

Price

Quantity

Demanded

Quantity supplied without

paying the cost of pollution

Quantity supplied after

paying the cost of pollution

$10 450 400 250

$15 440 440 290

$20 430 480 330

$25 420 520 370

$30 410 560 410