In the city of Bolzano (in Northern Italy), homeowners are responsible for cleaning up the sidewalk in front of their house, and they can be fined if they do not.
A and B are next-door neighbors. They are the same age, equally fit, have equal-sized side- walks and value their time about the same.  
However, after each snowfall, B clears the sidewalk in front of his house with a shovel, and A clears the sidewalk in front of his house with a brand new, extremely powerful snowblower. Clearing the sidewalk takes A five minutes, while it takes B an hour. A will not lend B his snowblower since it takes a while to learn how to use it properly, and he is afraid that B will break it.          
Define the Normative Coase view of how property law should be designed. Taking this view, who would end up clearing B's sidewalk and why?