Which theorem asserts that private economic actors can often solve the problem of externalities among themselves?

Variance is a measure of ________ and the lower the variance, ________

A) expected profit; the lower the profit B) risk; the lower the risk C) standard deviation; lower the standard deviation D) risk; the greater the risk

Explain the externality generated when a shepherd grazes sheep in a field that is common property that several other shepherds use

What will be an ideal response?