People who have a specific level of income, who are attracted to a specific part of a city, tend to share common values. The taxonomy called a Classification of Residential Neighborhoods (ACORN) system, created by the Consolidated Analysis Centers Incorporated (CACI) quantifies these trends over time. The use of Geodemographic techniques has proven to be reliable in site planning for new restaurants, grocery stories and retail outlets. Further, geodemographic techniques also isolate factors that lead to specific group definitions and affiliations as well. This field has grown from relatively simplistic techniques to complex statistical models that have increased inaccuracy and performance. In general, geodemographic techniques are used as the basis within retailers to plan their future locations and have proven to be reliable.

We sometimes increase our attitude toward a product after we buy it. How does the theory of cognitive dissonance explain this change?

The theory of cognitive dissonance...
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