By | September 12 2012 8:58 AM

The European recession, which continues to steepen, has already caused the ECB's Mario Draghi to promise to purchase unlimited quantities of bonds with duration of 1-3 years on the secondary market. Mr. Draghi plans to "sterilize" these purchases by auctioning one-week term deposits to banks. But there are two problems with this form of sterilization. The first is there is no guarantee that private banks will hand over all of their newly printed money back to the ECB. Instead, they may choose to make loans to the private sector and receive a higher return, causing a rapid increase in money supply growth. In fact, recent term deposits have yielded just 0.01% and the ECB has stopped paying interest on excess reserves, so there just isn't much incentive to park a tremendous amount of cash at the ECB. And the second problem is that offering a one-week term deposit only removes money from the private banking system for seven days. It is not the same as selling a long-term bond to the bank. Therefore, the sterilization done by the ECB will only be temporary at best.