Table 2. Extensive Model of OLS and 2SLS regressions of density zoning on economic segregation and neighborhood exposure in 50 U.S. metropolitan areas in 2000 (robust, clustered, standard errors in parentheses).

Independent Variables	Neighborhood Gini	Poor-Affluent Exposure
Ordinary Least Squares
Permitted Density Zoning	−0.041**	0.017**
	(0.013)	(0.006)
Constant	0.190	0.046
	(0.202)	(0.108)
Adjusted R2	0.552	0.875
Two Stage Least Squares
Permitted Density Zoning	−0.054**	0.014*
	(0.015)	(0.006)
Constant	0.219	−0.051
	(0.177)	(0.073)
Adjusted R2	0.469	0.842
Anderson Correlation	33.134	33.134
p-value	0.000	0.000
Hansen J Statistic	0.222	0.019
p-value	0.637	0.891

^**p<.01;

^*p<.05; Year of statehood and metropolitan population density in 1910 are the instruments. Anderson tests null hypothesis that instruments are irrelevant; Hansen tests null that they are uncorrelated with the error term.

OLS Controls: 2000 values of Poverty Rate, Affluence Rate, Percentage of Residents who Rent, Percentage Aged 25+ with a College Degree, Percentage Black or Latino, Population Density, Manufacturing Share of Workforce, Agricultural Share of Workforce, Median Household Income, Number Persons Who Arrived 1995-2000, Unemployment Rate, Average January Temperature, Rural Share of Housing Units, Percentage of Commuters with Commute Times Over 35 Minutes, Suburban Share of Housing, Per Capita State Tax Burden, Share of Local Tax Revenue from Property Taxes, Share of local government expenditure from local revenue, Union Share of Workforce, Interaction of Union share and Manufacturing Share, Percentage Aged 25+ with No High School Diploma

2SLS Controls: 2000 values of Poverty Rate, Affluence Rate, Percentage Black or Latino, Population Density, Manufacturing Share of Workforce, Union Share of Workforce, Interaction of Union share and Manufacturing Share, Share of Adults 25+ Without High School Diploma, Per Capita State Tax Burden, Number Residents Who Moved into MSA 1995-2000.