Alcohol and Environmental Justice: The Density of Liquor Stores and Bars in Urban Neighborhoods in the United States / RAND Corporation (reprint from Journal of Studies on Alcohol and Drugs), 2008
PDF - http://rand.org/pubs/reprints/2008/RAND_RP1323.pdf
"Mismatches between alcohol demand and the supply of liquor stores within urban neighborhoods constitute an environmental injustice for minorities and lower-income persons, with potential adverse consequences for drinking behavior and other social ills."