ECB without deposit boxes

80 Banks Charge Negative Interest Rates as Crisis Deepens in Germany

The ECB changes its allotment ratio every five years according to economic size of the member nations.   But economic size changes also and the allotment and size become unbalanced.  

Yes. We update the capital key – and therefore the amount that each central bank pays – once every five years and whenever the number of countries in the EU changes.

When Germany grows faster than the other nations, the euro becomes a loser for them until the next five year allotment. 

 While waiting things get confusing. The Germans utilize the foreign dollar markets and sell goods to Americans, at the expense of the rest of Europe. Eventually the ECB is in a pinch.

Why not let the ECB take deposits as demanded by the national banks, asynchronously as required? This idea at least prices the discontinuities among Euro nations immediately without the five year turn around.