Q1. Assume that your roommate is very messy. Assume she gets a $50 benefit from being messy but imposes a $100 cost on you. The Coase theorem would suggest that an efficient solution would be for you to
Q2. If all output is paid in wages to trolls also cost of lemon grass (in other words, the total cost of magic potion production equals to the output, where you can denote by r the price of 1 pound of lemon grass), compute the shares of lemon grass also troll labor in Hogwarts' income.