Neil Irwin writes in The NY Times, Why Negative Interest Rates Are Becoming the New Normal "The flaw in the old concept of the ‘zero lower bound’ seems to have been this: There are a lot of benefits to keeping money in a bank besides the interest you earn. If you keep $10,000 in savings in a bank, and the bank gets robbed, you’re unaffected; the bank is on the hook for the losses. If you keep it in your freezer, theft is your problem. The peace of mind of having your $10,000 in a federally insured bank account and the ability to write a check to make a purchase or wire money to a family member are valuable. More valuable, it seems likely, than the $30 in annual costs that would apply if the Fed put in place the E.C.B.’s new negative 0.3 percent rate."