Population characteristics at the
zip code level are taken from the 2007-2011 ACS five-year estimates.
With respect to the traditional economic data even macroeconomic data--Mian and Sufi (2009) exploit financial data at the
ZIP code level in a nationally representative study, examining the relationship between income growth, mortgage credit, and subprime mortgages leading in to the financial crisis of 2008.
Two
zip codes, one with high income and the other with low income, were chosen from each county, based on the rank order provided by the U.S.
Retailers are beginning to wonder if there could be problems down the road with collecting IP addresses, planting cookies or using loyalty card data--all of which are far more detailed and intrusive than collecting
ZIP codes.
The California Supreme Court has ruled that California merchants can no longer ask for the
zip codes of customers who make purchases with credit cards.
Many state and federal agencies compile and distribute data at the county or
zip code level but are unwilling to do so at lower levels for reasons of confidentiality.
Even in the City of Rochester
zip code of 14621, where seriously underwater mortgages were high, the percentage of equity-rich properties stood at 16 percent (530 of 3,321).
This Henderson brokerage in the 89002
zip code is owned by Michael and Anna Klinger.
Figure 1 is a scatterplot of the share of cash transactions in each
zip code in 2015 and 2011, on the y- and x-axes respectively.
The annual rent increase in their data was 2.2% and the average
ZIP code experienced a 6.5% annual increase in Airbnb listings.