<Dd> <Dl> <Dd> P (1 + 1 / ε) = M C (\ displaystyle P (1 + 1 / (\ epsilon)) = MC) </Dd> </Dl> </Dd> <Dl> <Dd> P (1 + 1 / ε) = M C (\ displaystyle P (1 + 1 / (\ epsilon)) = MC) </Dd> </Dl> <Dd> P (1 + 1 / ε) = M C (\ displaystyle P (1 + 1 / (\ epsilon)) = MC) </Dd> <P> This gives the markup rule: </P>

At what level of output does a monopoly operate