Its summer! After reading this blog – The ECB is a major reason the Euro crisis is deepening – many readers have written to me asking to provide more explanation of the “sterilisation” operations that the ECB is engaged in. It is clear that an increasing number of people are becoming interested in arcane things like central bank operations which can only augur well for creating capacity for better public debate. A lot of readers overnight have reacted one way or another to the announcement by several central banks that the swap lines are open again albeit at a lower “cost” than previously. There was also considerable interest in understanding what the “failed” sterilisation yesterday means. The answer is not much but we had better not tell the Germans that the ECB weekly deposit tender failed.