The American economy and much of the world now face extraordinary challenges, and confronting these challenges will continue to require extraordinary actions.
No crisis like this has a simple or single cause, but as a nation we borrowed too much and let our financial system take on irresponsible levels of risk. Those decisions have caused enormous suffering, and much of the damage has fallen on ordinary Americans and small-business owners who were careful and responsible. This is fundamentally unfair, and Americans are justifiably angry and frustrated.
The depth of public anger and the gravity of this crisis require that every policy we take be held to the most serious test: whether it gets our financial system back to the business of providing credit to working families and viable businesses, and helps prevent future crises.
Over the past six weeks we have put in place a series of financial initiatives, alongside the Recovery and Reinvestment Program, to help lay the financial foundation for economic recovery. We launched a broad program to stabilize the housing market by encouraging lower mortgage rates and making it easier for millions to refinance and avoid foreclosure. We established a new capital program to provide banks with a safeguard against a deeper recession. By providing confidence that banks will have a sufficient level of capital even if the outlook is worse than expected, more credit will be available to the economy at lower interest rates today -- making it less likely that the more negative economy they fear will take place.
We started a major new lending program with the Federal Reserve targeted at the securitization markets critical for consumer and small business lending. Last week, we announced additional actions to support lending to small businesses by directly purchasing securities backed by Small Business Administration loans.
Together, actions over the last several months by the Federal Reserve and these initiatives by this administration are already starting to make a difference. They have helped to bring mortgage interest rates near historic lows. Just this month, we saw a 30 percent increase in refinancing of mortgages, which means millions of Americans are taking advantage of the lower rates. This is good for homeowners, and it's good for the economy. The new joint lending program with the Federal Reserve led to almost $9 billion of new securitizations last week, more than in the last four months combined.
However, the financial system as a whole is still working against recovery. Many banks, still burdened by bad lending decisions, are holding back on providing credit. Market prices for many assets held by financial institutions -- so-called legacy assets -- are either uncertain or depressed. With these pressures at work on bank balance sheets, credit remains a scarce commodity, and credit that is available carries a high cost for borrowers.
We are announcing another critical piece of our plan to increase the flow of credit and expand liquidity. Our new Public-Private Investment Program will set up funds to provide a market for the legacy loans and securities that currently burden the financial system.