city id
city name
= 1 for year 2000
iz law passed 1986-1995
izlaw*d interaction
year city passed policy
average home price
log(avgprice)
# of units
log(units)
# of households
log(hhlds)
population in 1000s
log(pop)
people/acre
median household income
log(medhhinc)
proportion w/college degree
proportion below poverty level
mean travel time to work
proportion >= age 65
lnprice[2000]-lnprice[1990]
lnunits[2000]-lnunits[1990]
lnmedhhinc[2000]-lnmedhhinc[1990]
density[2000]-density[1990]
educattain[2000]-educattain[1990]
proppoverty[2000]-proppoverty[1990]
meantttw[2000]-meantttw[1990]
prop65[2000]-prop65[1990]
pop[2000]-pop[1990]
lpop[2000]-lpop[1990]