Although a 0.36% rise in rates may not seem that large, it’s already started to have an impact in the housing market. According to a weekly report from the Mortgage Bankers Association, 30-year mortgage rates rose from 4.28% to 4.46% last week, causing substantial declines in applications for both new purchases and refinancings (see the table below). Considering that the Fed is specifically trying to drive interest rates lower in order to help the housing market, they can’t be very pleased by the market’s reaction so far. It may just be a short-term phenomenon, or it could be a broader signal that the market doesn’t have much confidence in QE2’s ultimate effectiveness. The Fed is undoubtedly watching this very closely, and hoping that it’s the former, not the latter.