BgNotes.txt

Demographic variables are taken from the 2014 5-year American Community Survey Estimates at the Block Group Level (taken from the FTP site). Can provide code that goes from original txt files to this if requested.

Here is a description of how the percentage variables are calculated based on the original data "B?????" data fields.

PerPoverty = (B17010_002/B17010_001)             # % of families in poverty
PerFemHeadHouse = (B11003_016/B11002_001)        # % female head house with kids under 18
PerUnemploy = (B23025_005/B23025_003)            # % unemployed people of those 16 and in labor force
PropMove =  (B07001_017/B07001_001)              # % people moved in prior year, for block groups based on imputed tables
PerAssist = (B22010_002/B22010_001)              # % households receiving foodstamps/SNAP

WhitePerc = (B03002_003/B02001_001)              # % white non-hispanic
BlackPerc = (B03002_004 + B03002_014)/B02001_001 # % black pop (includes black hispanic)
HispPerc = (B03002_013/B02001_001)               # % hispanic not black
AsianPerc = (B02001_005/B02001_001)              # % asian 


The diversity index I use is Simpson

SimpsonInd = WhitePerc^2 + BlackPerc^2 + HispPerc^2 + AsianPerc^2