What do you believe to be the cause of residential discrimination

/in /by

What do you believe to be the cause of residential discrimination, is it caused by racial or ethnic bias or would you contribute it to social and economic conditions, why are there different social and economic conditions? Do you believe that this type of discrimination (residential) contributes to crime? Do you believe that these same factors, the ones you believe contribute to residential discrimination also contribute to the discriminatory arrest rates for drug possession, what evidence do you have for your opinion?