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What is redlining?
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Data on house prices and attitudes towards integration suggest that in the mid-20th century, segregation was a product of collective actions taken by whites to exclude blacks from their neighborhoods. Segregation also took the form of redlining, the practice of denying or increasing the cost of services, such as banking, insurance, access to jobs, access to health care, or even supermarkets to residents in certain, often racially determined, areas.