It is achieved when what happens to the marginal benefit. I've been tryign to understand this all night and I cant figure it out.
Is it
-When its less than marginal cost
-equals zero
-equals marginal cost
-exceeds marginal cost but not by as much as possible
OR -exceeds marginal cost as much as possible
Is it
-When its less than marginal cost
-equals zero
-equals marginal cost
-exceeds marginal cost but not by as much as possible
OR -exceeds marginal cost as much as possible