Suppose your neighbour likes to repair motorcycles in his front yard during evenings and on weekends, and he earns $400 per week from this work. However, the sight of piles of greasy motorcycle parts and the additional noise and traffic caused by his customers reduces your value of living in this neighbourhood by $300 per week. If your neighbour has a right to operate this business, what is the efficient outcome? If you have a right to live in peace and quiet, how can you achieve the efficient outcome? If you have a right to live in peace and quiet, but have to hire a lawyer to bargain for you, what is the maximum you should spend on the lawyer to achieve the efficient outcome?