Recorded Delivery [[can flagyl cause black stools> http://www.taodirectory.co.uk/does-flagyl-kill-blastocystis-hominis.pdf#sadness ]] The private sector's role in mortgage finance is clear and central. A market-driven environment where competition provides an incentive to lower prices, increased productivity, innovative practices and improved customer service is key to the success of our housing finance system. But families don't decide to buy or sell a home based just on market conditions; they buy and sell when life circumstances demand it. We must remember that for most Americans, housing is not primarily an investment vehicle – it's a home.