This hypothesis will be tested through qualitative methods including primarily ethnographic observation and open-ended interviews. References

Cheadle a et al. 1991 "Community-Level Comparisons Between the Grocery Store Environment and Individual Dietary Practices" Preventive Medicine 20(2) pp. 250-61.

Glanz K & Yaroch AL 2004 "Strategies for Increasing Fruit and Vegetable Intake in Grocery Stores and Communities: Policy, Pricing, and Environmental Change" Preventive Medicine 39, pp. S75-S80.

Jetter K & Cassady D. 2006 "The Availability and Cost of Healthier Food Alternatives" American Journal of Preventive Medicine 30(1): pp. 38-44.

2004 "Proximity of Supermarkets is Positively Associated with Diet Quality Index for Pregnancy" Preventive Medicine 39(5): pp. 869-75.
Morland K. et al. 2002 "The Contextual Effect of the Local Food Environment on Residents' Diets: The Atherosclerosis Risk in Communities Study" American Journal of Preventive Medicine 92(2): pp. 1761-67.

O'Hare B & Mather M. 2003, the Growing Number of Kids in Severely Distressed Neighborhoods: Evidence from the 2000 Census.

Reed J. et al. 2004 "How Much Do Americans Pay for Fruits and Vegetables?" Agriculture Information Bulletin 790 Washington, DC: U.S. Department of Agriculture.