Single-Family Home Sale Prices by Census Tract

Displacement risk indicator classifying census tracts according to
single-family home sale prices in census tracts where at least 100 single-family homes exist. We classify arms-length transactions only along two dimensions:

1. The median price of sales within the
   census tract for the specified year, balancing between nominal sale
   price and sale price per square foot.
2. The change in median sale price (again balanced between nominal sale price and price per square foot) from the previous year.